Abstract: An electrical field shielding assembly comprises at least one electrically conductive, shielding element (12) that is hingably mounted on the electrical field shielding assembly, wherein the or each shielding element (12) is hingably movable between an open position in which an access opening in the electrical field shielding assembly is created and a closed position in which the access opening in the electrical field shielding assembly is closed.

Abstract: A multiple device voltage electrostatic discharge (ESD) clamp includes a trigger circuit, first and second inverters, and an ESD discharge path. The trigger circuit includes a resistor having a first terminal electrically connected to a first voltage supply node, and a capacitor having a first terminal electrically connected to a second voltage supply node. The first inverter has an input terminal electrically connected to second terminals of the resistor and the capacitor. The second inverter has a power terminal electrically connected to an output terminal of the first inverter. The ESD discharge path has a first end electrically connected to the first voltage supply node, and a second end electrically connected to a third voltage supply node, and includes a first transistor controlled by the first inverter, and a second transistor controlled by the second inverter.

Abstract: Provided is a surge protector having an improved I-shaped load structure. The surge protector includes an outside conductor provided with input and output terminals on both sides thereof, an input terminal configured such that a high frequency signal is input from the outside thereto, an output terminal configured such that a high frequency signal is output therefrom, an inside conductor disposed inside the outside conductor to electrically connect the input and output terminals to each other, and an I-shaped load configured such that a lower end thereof is connected from a center of the outside conductor to the inside conductor and an upper end thereof is connected to the outside conductor. A dielectric partition is formed to have a predetermined height in a direction from the bottom of the I-shaped load to the top thereof.

Abstract: Device structures and methods for providing carbon nanotube field effect transistor (CNTFET) devices with enhanced current carrying capability at lower densities are disclosed. Apparatuses and methods using CNTFET devices for providing protection from electrostatic discharge (ESD) voltages are also disclosed. According to some aspects of the present disclosure the electrostatic discharge protection circuits are configured with CNTFET diodes and provide protection from electrostatic discharge induced voltages for a protected circuit without affecting the normal operation of the protected circuit. According to some aspects of the present disclosure the methods for providing protection from electrostatic discharge voltages create conducting paths for providing protection from electrostatic discharge induced voltages for a protected circuit without affecting the normal operation of the protected circuit.

Abstract: The application discloses novel internal structures of energy conditioners, assemblies of external structures of energy conditioners and mounting structure, and novel circuits including energy conditioners having A, B, and G master electrodes.

Abstract: A modular lightning surge protection apparatus is applied to a single-phase three-wire power system with a line, a neutral, and a ground. The modular lightning surge protection apparatus includes a substrate, a surge protection unit, a first temperature fuse, and a second temperature fuse. The surge protection unit has a first surge protection element, a second surge protection element, and a third surge protection element to form a wye connection or a delta connection structure. Furthermore, the surge protection unit, the first temperature fuse, and the second temperature fuse are electrically connected on the substrate to form a small-scale modular circuit integration structure.

Abstract: A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An external surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation. Pluggable surge suppression modules can be used in both the external surge suppression unit and the rack mountable surge suppression unit.

Abstract: A system for conditioning the three-phase alternating current electric power, including a first phase, a second phase, a third phase, and a neutral line, supplied to a load includes a plurality of first surge arresters, a plurality of second surge arresters, a plurality of third surge arresters, a three-phase surge suppressor, and a plurality of capacitors. The surge arresters minimize the amount by which the voltage between two phases and the neutral line exceeds a rated value. The three-phase surge suppressor minimizes the amount by which the voltage between the three phases and the neutral line exceeds a rated value. The capacitors minimize the amount by which the voltage between two phases falls below a rated value.

Abstract: A terminal block is disclosed that includes a terminal body housing, a plurality of conductive elements arranged within the terminal body to create a continuous electrical path therethrough, and a disconnect switch integral the terminal body, the switch arranged to open the continuous electrical path and expose a terminal.

Abstract: A surge arrester comprises an electrical insulator (10), which surrounds a cavity (20), a pin electrode (30) and a tube electrode (40), which are arranged in the cavity (20), wherein the pin electrode (30) projects into the tube electrode (40). An ignition strip (50) is applied on an inner surface (S10a) of the insulator facing the cavity (20). An outer metallization (61, 62, 63) is arranged on an outer surface (S10b) of the insulator (10). As a result, an effective reduction of the protection level can be achieved in the case of the surge arrester.

Abstract: A DC block RF device includes a housing defining a cavity having a central axis, an input conductor disposed in the cavity of the housing and extending substantially along the central axis of the cavity and an output conductor disposed in the cavity of the housing and extending substantially along the central axis of the cavity. The DC block RF device further includes a first capacitor connected to the input conductor and a second capacitor connected to the output conductor and the first capacitor. In addition, the DC block RF device includes a coil for grounding surge signals, the coil having an inner edge connected to the center conductor and an outer edge connected to the housing of the device. During a surge, the first capacitor is configured to arc the surge across the capacitor without damaging the capacitor so the surge can dissipate through coil to ground.

Abstract: A power supply having a power protection circuit has a rectification circuit and a converter. An input terminal of the rectification circuit is connected with the AC mains. A first voltage dependent resistor is connected with the AC mains. The converter has a transformer. A primary side of the transformer is connected with an output terminal of the rectification circuit, and the secondary side is connected to a power output terminal and a ground terminal. A Y capacitor is connected between the primary side of the transformer and the ground terminal. A surge protection module is connected between the first voltage dependent resistor and the Y capacitor. When a surge occurs between the primary and secondary sides of the transformer, a surge current is shunted by the surge protection module to the ground terminal through the Y capacitor without damaging internal components or circuits inside the power supply.

Abstract: A system for conditioning the three-phase alternating current electric power, including a first phase, a second phase, a third phase, and a neutral line, supplied to a load includes a plurality of first surge arresters, a plurality of second surge arresters, a plurality of third surge arresters, a three-phase surge suppressor, and a plurality of capacitors. The surge arresters minimize the amount by which the voltage between two phases and the neutral line exceeds a rated value. The three-phase surge suppressor minimizes the amount by which the voltage between the three phases and the neutral line exceeds a rated value. The capacitors minimize the amount by which the voltage between two phases falls below a rated value.

Abstract: An electrical unit outlet device is disclosed for controlling power isolation, based on a predetermined time, for a device charger, while remaining plugged into a power outlet. An electrical outlet unit circuit cuts any power to the charging device off when charge is complete. An electrical device to limit the electrical power consumed by battery chargers, that are used to recharge the batteries of devices is described which includes: (1) a means to initiate a charging cycle; (2) surge protection circuit to protect both the battery charger and the device being recharged; and (3) an automatic control circuit to terminate a charging cycle. Secondly for the device to maintain the battery at full charge for extended periods of time while limiting power consumption, which includes: (1) a means to repeatedly initiate an abbreviated charging cycle and (2) a means to control the amount of time between the abbreviated charging cycles.

Abstract: A discharge element includes a first electrode that is made of a plastically-deformable conductive material and that has an internal space and an opening communicating with the internal space, a base that is made of an insulating material and that is air-tightly joined to the opening so that the internal space of the first electrode becomes an airtight space, and a second electrode that is made of a conductive material and that is inserted into the internal space via the base so as to form a spark gap between itself and the first electrode. Therefore, it is possible to provide the discharge element that realizes a high production yield, a simple structure, and a cost reduction and a simple manufacturing method of the discharge element.

Abstract: A circuit includes a first node configured to receive a radio frequency (“RF”) signal, a first electrostatic discharge (ESD) protection circuit coupled to a first voltage supply rail for an RF circuit and to a second node, and a second ESD protection circuit coupled to the second node and to a second voltage supply node for the RF circuit. An RF choke circuit is coupled to the second node and to a third node disposed between the first node and the RF circuit.

Abstract: AC pre-charging techniques are provided for pre-charging the DC bus on a motor drive. AC pre-charging techniques involve pre-charge circuitry including a manual switch, an automatic switch, and pre-charge control circuitry to switch the automatic switch between pre-charge and pre-charge bypass modes in response to an initialized pre-charge operation, input voltage sags, etc. In some embodiments, the pre-charge operation may be initialized by switching the manual switch closed. In some embodiments, the pre-charge operation may also be initialized by a detected voltage sag on the DC bus. The pre-charge circuitry may also be configured to disconnect a motor drive from the AC power supply under certain fault conditions.

Abstract: The invention relates to a device (1) for discharging an electrical overvoltage, comprising an overvoltage discharge unit (10) having a non-linear current/voltage characteristic at least in sections, wherein a first terminal electrode (16) of the overvoltage discharge unit (10) is connected to a high-voltage terminal (18) of the device (1) and a second terminal electrode (22) of the overvoltage discharge unit (10) is connected to a low-voltage or ground terminal (24) of the device (1), and wherein the overvoltage discharge unit (10) is surrounded, at least in sections, by an insulating body (20), characterized in that the device (1) has a cutting element (40), which is connected to the low-voltage or ground terminal (24) of the device (1) and is disposed close to a high-voltage section of the device (1), in particular close to a high-voltage section of the overvoltage discharge unit (10), which cutting unit cuts into the insulating body (20) in the event of the insulating body (20) distending as a result of a

Abstract: Various embodiments relate to a degrade-resistant surge suppressor that detects and suppresses surge events. The surge suppressor includes a high impedance high pass filter, one or more series inductors, and one or more capacitor banks. The capacitor bank may include a bridge rectifier circuit having two diodes and two SCRs (Silicon-Controlled Rectifiers), or a diode bridge rectifier fed by a TRIAC (Node for Alternating Current). The surge suppressor may further include a secondary trigger device to ensure proper attenuation of surge events.

Abstract: A lighting installation includes a light fixture having a socket adapted to electrically connect to at least one lamp, the light fixture having a line voltage input, a neutral input and a ground input. Also included is a circuit for suppressing electrical surges including output leads for line voltage and neutral to the socket, a first varistor connecting the line voltage input and ground input, a second varistor connecting the line voltage input and neutral input, a third varistor connecting the ground input and neutral input, a resistor connecting the line voltage input and line voltage output, and a resistor connecting the neutral input and neutral output.

Abstract: A surge protection module is disclosed. An example surge protection module includes a first terminal coupled to a first output terminal of a rectifier of a power supply. A second terminal is coupled to a first input terminal of a switching converter of the power supply. A third terminal is coupled to a second output terminal of the rectifier and a second input terminal of the switching converter. A variable resistance circuit is coupled between the first and second terminals. A control circuit is coupled between the first and third terminals and coupled to control the variable resistance circuit. A resistance of the variable resistance circuit is responsive to a magnitude of a voltage between the first and third terminals.

Abstract: A lightning protection circuit includes a transistor array, a transistor array gate drive, and a second stage protection element which forces a voltage at the gate node of the transistor array to be higher than the voltage at the source node of the transistor array when a threshold is exceeded.

Abstract: A surge arrester has a tube-shaped housing, an end fitting connected to an end of the housing, a varistor block arranged in the housing and a supporting element arranged in the region of the end fitting. The supporting element has a supporting ring which is in contact with the housing and which includes a cone and a clamping ring with a counter-cone that corresponds to the cone. The cone is braced to the counter-cone in such a manner that the supporting ring is pressed to the housing in a non-displaceable manner. The supporting element can thus also be used after the installation of the varistor block and also be removed.

Abstract: An overvoltage protection device for protecting electrical low-voltage installations, having a lower device part and at least one upper device part, wherein the lower device part has input and output terminals for the electrical conductors to be connected and contact elements connected to the input and output terminals. The upper device part has at least one overvoltage protection element. An intermediate device part is additionally provided which can be fitted onto the lower device part and onto which the upper device part can be fitted. The intermediate device part has mating contact elements corresponding to the contact elements of the lower device part and also has contact elements connected to the mating contact elements. The intermediate part has at least one longitudinal element connected between two mating contact elements, and the upper device part has mating contact elements corresponding to the contact elements of the intermediate device part.

Abstract: A protection circuit includes a surge absorber, a switch device electrically connected to the surge absorber and having a first conductor and a second conductor, and a heat-shrinkable device disposed on an outer periphery of the surge absorber and shrinking in accordance with temperature of the surge absorber. The first conductor has a first connecting portion and a second connecting portion. The surge absorber is connected to the first connecting portion. When the switch device is in an initial state, the second connecting portion electrically contacts the second conductor, and when the heat-shrinkable device shrinks to separate the second connecting portion from the second conductor, the switch device is switched off.

Abstract: The invention provides a power surge protection apparatus which includes at least one large capacitor used within a surge protection circuit associated with an electrical load to be protected. This large capacitor or capacitors are arranged to divert and store at least a portion of the energy present in a transient voltage surge to prevent or mitigate damage to the protected electrical load. In preferred embodiments the invention uses large capacitors in the form of electrical double layer capacitors.

Abstract: A transformer module comprises a protection module, a transformer, a network IC module, and a body. The body has a containing space for encapsulating the protection module, the transformer and the network IC module. A plurality of upper terminals is set on a top side of the transformer, and a plurality of lower terminals is set on a bottom side of the transformer. The transformer is electrically connected with the protection module through the plurality of upper terminals, and is electrically connected with the network IC module through the plurality of lower terminals. A network connector can electrically connect with the protection module, the transformer and the network IC module of the transformer module in order when being connected with the transformer module through a computer mainboard. The present invention integrates all components needed by a network connector in a single body.

Abstract: A stress control apparatus for managing effects caused by electrical stress in a high voltage environment, and methods of manufacturing the apparatus. A dielectric tube with a central bore coated with a conductive material has an outer conductive coating on a lower section that is grounded. The central bore carries a high voltage potential from a current-carrying conductor. The grounded coating transitions to the exposed outer dielectric surface along a gradually tapered transition. A conductive insert connects to the central bore and forms an electric field in a space between the insert and the grounded coating. When coated with an epoxy and inserted into the central bore, the insert forms a small gap between an outer surface of the insert and part of the central bore, such that there is no zero potential difference in the gap. Any epoxy that oozes out during insertion will collect in the gap.

Abstract: A triple stack NMOS integrated circuit structure protection circuit for a plurality of terminals operative at respective voltage levels is coupled between the plurality of terminals. First and second NMOS elements of the triple stack NMOS share a common active region. A third NMOS element, vertically positioned with respect to the first and second NMOS elements, has an active region separate from the active region of the first and second NMOS elements. The first, second and third NMOS elements are connected in series between two terminals of the plurality of terminals.

Abstract: The present invention relates to a lightning protective high-voltage divider, which comprises: a printed circuit board; an impedance coil; a coupling capacitor having one end being coupled to the signal input terminal; a transformer having a primary coil and a secondary coil, wherein one end of the primary coil is coupled to the other end of the coupling capacitor, the other end of the primary coil is grounded, the secondary coil is coupled to at least a signal output terminal, so the input signal inputted by the signal input terminal is enabled to be coupled to the signal output terminal through the primary coil and the secondary coil; when a lightning surge current occurs, the impedance coil is able to guide the surge current to the ground, thereby protecting the coupling capacitor from being damaged.

Abstract: A circuit includes a discharge arrangement configured to discharge an electrostatic charge. The discharge arrangement has a discharge state. A first circuit is configured to provide a pulse to the discharge arrangement when the electrostatic charge is sensed. The pulse causes the discharge arrangement to enter the discharge state. A second circuit is configured to maintain the discharge arrangement in the discharge state after the pulse has ended. A third circuit is configured to receive the pulse and to provide a delayed output to the discharge arrangement. The delayed output causes the discharge arrangement to exit the discharge state.

Abstract: An integrated circuit (IC) electromagnetic interference (EMI) filter with electrostatic discharge (ESD) protection incorporating inductor-capacitor (LC) resonance tanks is disclosed. The filter comprises at least one circuit composed of a diode and an inductor connected in series, wherein the diode induces a parasitic capacitance and the circuit is grounded. When a number of the circuit is two, a passive element is coupled between the two inductors and cooperates with them to induce two parasitic capacitances connected with the circuits. When a number of the circuit is one, two diodes respectively connect with the inductor through two passive elements. Each diode can induce a parasitic capacitance. The two passive elements and the inductor can induce a parasitic capacitance connected with the circuit.

Abstract: A base element and a surge protection system incorporating the base element are provided. The base element includes a housing having a front portion and a rear portion. Apertures in the rear portion provide access to contacts secured within the housing, and a receiving portion extending from the front portion includes at least one receiving section for receiving a surge protection cartridge. Plug receptacles in the receiving portion are in electrical communication with the contacts to incorporate the surge protection device in a circuit when the surge protection cartridge is inserted. The base element is configured to mount orthogonally to a case such that conductors secured to the contacts extend through the apertures and into an enclosure defined by the case in a substantially linear direction. The system includes a case configured to be attached to a rack mount system and a plurality of base elements secured to the case.

Abstract: A surge arrestor includes at least one arrestor element, and a disconnecting device for disconnecting the arrestor element from the grid. The disconnecting device includes a thermal disconnect point that is incorporated into the electrical connection path within the arrestor. A moving conductor section or a moving conductive bridge is connected to the arrestor element by way of the disconnect point. A conducting element is disposed in or at the end of the path of motion of the conductor section or of the bridge, the conducting element coming into contact with the conductor section or the bridge when the disconnecting device is triggered. A moving insulation part penetrates into the path of motion of the conductor section or of the bridge directly prior to or upon reaching a short circuit state.

Abstract: An insulator housing suitable for electrical products for high voltage, for example, surge arresters, breakers or bushings. The insulator housing includes a first cylindrical end and a second cylindrical end having a hollow insulator body. The first end and/or second end is provided with a cylindrical flange for attaching the insulator housing to an external device at a first end of the flange. A strengthening element is arranged at a second end of the flange.

Abstract: A surge protector, an HVAC unit including the surge protector and a method of testing electrical equipment employing the surge protector is disclosed. In one embodiment, the surge protector includes: (1) a first lead, a second lead and a third lead and (2) a protective network having three surge protection units with one of the three surge protection units coupled between each distinct combination of the first, second and third leads, the protective network configured to provide simultaneous surge protection between each of the distinct combinations.

Abstract: An improved surge protection for protecting an electronic device is disclosed, the device having a closed casing with walls made of a non-conducting material and being internally coated with a thin metallic layer. The device also has at least one connector, being arranged in an opening in the walls and including a connector body, at least a portion of which projects outwardly from the wall and which accommodates an internal coupling device, to which a transmission cable, including a central conductor and an outer shield conductor, is connectable. According to the invention, the connector body is also made of a non-conducting material and strong currents, being present at a conducting protection sleeve, are diverted by at least one conducting diversion member to at least one metallic structure, being in permanent electric contact with ground and having a high capacity of conducting strong currents.

Abstract: The present invention relates to a device and method for displaying the lifecycle of a surge protection device, and more particularly to a device and method for displaying the lifecycle of a surge protection device, which detects an increase in leakage current according to a deterioration in performance of the surge protection device in order to provide notice of a replacement time for the surge protection device. According to the present invention, it is possible to for a user to provide notice of a replacement time by displaying the lifecycle of a surge protection device (SPD) to the outside. Additionally, as another effect of the present invention, it is possible to confirm an amount of leakage current flowing into the ground of the SPD and whether the SPD is properly installed on a ground line by using a current and ground state detecting sensor.

Abstract: A surge protection circuit for an electronic device such as an HVAC controller. In one example, the surge protection circuit may include a first voltage clamp, a second voltage clamp, a resistor, and an output port. The first voltage clamp may provide a first clamping voltage between a power input terminal and a common terminal. The second voltage clamp may provide a second clamping voltage that is less than the first clamping voltage. The resistor may be connected in series with the second voltage clamp, and the series connected resistor and second voltage clamp may be connected in parallel with the first voltage clamp. As such, a surge current at the power input terminal may be split between the first voltage clamp and the second voltage clamp. The amount of surge current that is provided to the second voltage clamp may be set by the value of the resistor.

Abstract: A surge protection device includes, in one embodiment, a reversible surge responder operative to engage an inner conductor engager during a protect mode and disengage the inner conductor engager during a normal mode. The surge responder returns to the normal mode from the protect mode without the intervention of an operator or service technician to replace or re-set the surge responder.

Abstract: A surge suppression apparatus is applied to an alternating current power supply apparatus. The surge suppression apparatus includes a rectification unit and a first transient voltage surge suppressor. The rectification unit includes a first diode, a second diode, a third diode, and a fourth diode. The first transient voltage surge suppressor is electrically connected to the first diode, the second diode, the third diode, and the fourth diode. The alternating current power supply apparatus is electrically connected to the first diode, the second diode, the third diode, and the fourth diode. The first diode is electrically connected to the second diode and the third diode. The fourth diode is electrically connected to the second diode and the third diode.

Abstract: An electrostatic discharge (ESD) protection device is disclosed. The ESD protection circuit is configured to operate in high voltage domains. The ESD protection device may further include stacked NMOS or PMOS devices. The gates of the MOS devices may be driven by respective inverters. The inverters may be coupled to a voltage divider and may be triggered by respective trigger circuits. Power nodes of the inverters may be connected such that devices in the ESD protection circuit are exposed to voltages that are within their maximum voltage rating.

Abstract: The semiconductor device includes a plurality of first flat plates containing a material that absorbs an electromagnetic wave at a high frequency. Any of the first flat plates is disposed above the first connecting wire, and any other of the first flat plates is disposed above the second connecting wire.

Abstract: A voltage surge protection device for protection of a high voltage device includes a varistor having a first part and a second part separated by varistor material. The voltage surge protection device further includes an expandable member arranged to act on a movable electrical contact for short-circuiting the voltage surge protection device upon a threshold voltage being applied between the first part and the second part of the varistor. A high voltage circuit breakers includes one or more semiconductor devices connected in series and the voltage surge protection device connected in parallel thereto.

Abstract: A driver circuit has a pad that may be utilized for programming a core circuit or receiving a data signal. A trace high circuit receives a pad voltage signal from the pad, and outputs a trace high voltage approximating a higher voltage of the pad voltage signal and the power supply voltage. A level shifter and a first inverter output a pull high control signal generated by inverting and level shifting a programming control signal. An ESD blocking circuit selectively blocks the pad voltage signal from reaching the core circuit depending on the pad voltage signal and the level-shifted programming control signal. A pull high circuit receives the pull high control signal and the power supply voltage, and outputs the power supply voltage to the core circuit when the pull high control signal is lower than the power supply voltage.

Abstract: Various embodiments relate to a base station element and related method of suppressing an alternating-current (AC) portion of a signal. A base station element includes a filter capable of lightning suppression through the use of an LC filter that suppresses an AC portion of a received signal while passing a DC portion of the signal. The LC filter includes a flat inductor disposed in a cavity of the base station. The flat inductor may be connected to other electrical components disposed in the cavity of the base station to complete the electrical circuit. In some embodiments, the flat inductor may be produced from one material through photo-etching and may also include snap in or snap on connectors on one or both ends to enable galvanic contact with other components like a tap pin or a printed circuit board (PCB) without requiring attachment through soldering.

Abstract: A surge suppression system provides surge protection both locally within the radio station building were the power plant and telecommunication equipment are located and remotely next to the radios and antennas located outside of the building on the communication tower. An aerodynamically shaped remote surge suppression unit provides a waterproof enclosure for both surge suppression devices and fiber optic connectors. The unit has reduced wind load and reduced weight and can be placed on a wide variety of different radio tower and building structures with tight space restrictions. A rack mountable surge suppression unit provides local in-line surge suppression protection for the electrical equipment located in the communication station. A unique surge suppression tray is hot swappable so that multiple surge suppression devices can be replaced at the same time without disrupting radio operation.

Abstract: The present disclosure relates to an overvoltage-protection device for protecting a high-frequency terminal from overvoltage. Overvoltages can be compensated by a coil arrangement, which includes coils electrically in series with different, increasing inductances. The end of the relatively thinner coil is connected to the high-frequency terminal of a circuit.

Abstract: A Peltier element is provided so that an electrically conductive plate forming a heat absorbing portion is in close proximity to an insulating layer and an electrically conductive plate forming a heat radiating portion is provided in close proximity to an insulating layer. The Peltier element has one end connected to a branch line branched from a power line, and has the other end electrically connected to an electrode plate. Further, the Peltier element receives from the branch line a portion of electric power supplied to a power transistor, and outputs it to the electrode plate. In other words, the Peltier element uses the portion of the electric power supplied to the power transistor, to absorb heat generated by the power transistor and radiate it toward a heat radiating plate.

Abstract: An electrical insulator including: a first connector of an electrically conducting material; a second connector of an electrically conducting material; and an electrically insulating material being arranged between the first connector and the second connector, insulating the connectors from each other; wherein a part of the first connector extends past a part of the second connector, partly enveloping part of the second connector. The invention also relates to a surge arrester arrangement, to a use of an electrical insulator for insulating a surge arrester, and to a method for production of such an electrical insulator.