Abstract: A housing slice for forming a modular housing for mounting an electrical component on a grounding rail carries a grounding member for grounding the electrical component to the grounding rail. The grounding member extends outside of the housing slice but does not extend beyond the sides of the housing slice to permit side-by-side stacking of the housing slice carrying the grounding member with other housing slices with or without grounding members.

Abstract: A housing slice for forming a modular housing for mounting an electrical component on a grounding rail carries a grounding member for grounding the electrical component to the grounding rail. The grounding member extends outside of the housing slice but does not extend beyond the sides of the housing slice to permit side-by-side stacking of the housing slice carrying the grounding member with other housing slices with or without grounding members.

Abstract: A redundant power supply motherboard assembly connects control segments of a fieldbus-type control system to a host computer. The assembly has a compact design with pairs of power supply modules in side-by-side nests on the motherboard. The nests are mounted on the motherboard in desired locations and securely hold the modules on the assembly despite vibrations, shocks and handling to prevent contact impairment. The nests provide touch protection for components on the motherboard.

Abstract: A redundant power supply motherboard assembly connects control segments of a fieldbus-type control system to a host computer. The assembly has a compact design with pairs of power supply modules mounted in nests on the motherboard. The nests securely hold the modules to prevent contact impairment due to vibrations, shocks and handling.

Abstract: A redundant power supply motherboard assembly connects control segments of a fieldbus-type control system to a host computer. The assembly has a compact design with pairs of power supply modules mounted in nests on the motherboard. The nests securely hold the modules to prevent contact impairment due to vibrations, shocks and handling.

Abstract: A redundant power supply motherboard assembly connects control segments of a fieldbus-type control system to a host computer. The assembly has a compact design with pairs of power supply modules in side-by-side nests on the motherboard. The nests are mounted on the motherboard in desired locations and securely hold the modules on the assembly despite vibrations, shocks and handling to prevent contact impairment. The nests provide touch protection for components on the motherboard.

Abstract: A method for removing an electronic module from a base where the module includes a latch extractor assembly and a stiff shift member with latch arms outside the module body and follower arms inside the module body. An extractor engages the follower arms to move the shift member laterally and move the latch arms out of engagement with the base to free the module for removal from the base.

Abstract: An electrical terminal or spring terminal for forming an electrical connection between a wire conductor and a current bar includes a spring and a spring retainer, the spring retainer not integral with the spring and not integral with the current bar. Engageable abutment surfaces on the spring retainer and the current bar cooperate to transfer spring force to the current bar.

Abstract: An electrical terminal or spring terminal for forming an electrical connection between a wire conductor and a current bar includes a spring and a spring retainer, the spring retainer not integral with the spring and not integral with the current bar. Engageable abutment surfaces on the spring retainer and the current bar cooperate to transfer spring force to the current bar.

Abstract: A terminal block for mounting on a DIN rail includes a plurality of stacked modules with each module having a contact body and an extender body mounted on the contact body. A circuit board or electronic component is mounted on the contact body and the extender body. Different size extender bodies may be mounted on a common contact body to accommodate mounting different size circuit boards or components on the block.

Abstract: A method for removing an electronic module from a base where the module includes a latch extractor assembly and a stiff shift member with latch arms outside the module body and follower arms inside the module body. An extractor engages the follower arms to move the shift member laterally and move the latch arms out of engagement with the base to free the module for removal from the base.

Abstract: A method for mounting a latch to a base, the base having an interior cavity for an electronic component, the latch configured to receive a support member for mounting the base to the support member, includes the steps of attaching a release member to the base and holding the release member in a stationary position, placing a latch against the base and forming a connection between the release member and the latch, and moving the release member and latch to a second position where the latch and release member are freely movable between latched and unlatched positions.

Abstract: A modular DIN rail mounted base includes a two-part body made of plastic shells and a unitary circuit board assembly having two vertically spaced circuit boards. The edges of the circuit boards fit into interior grooves formed the interior surfaces of the shells to locate the assembly vertically in the shell. An alignment rib provided in a groove in a shell extends into a recess formed in a circuit board edge in the groove to locate the assembly longitudinally along the groove in the body.

Abstract: A method for mounting a latch to a base, the base having an interior cavity for an electronic component, the latch configured to receive a support member for mounting the base to the support member, includes the steps of attaching a release member to the base and holding the release member in a stationary position, placing a latch against the base and forming a connection between the release member and the latch, and moving the release member and latch to a second position where the latch and release member are freely movable between latched and unlatched positions.

Abstract: A modular DIN rail mounted base includes a two-part body made of plastic shells and a unitary circuit hoard assembly having two vertically spaced circuit boards. The edges of the circuit boards fit into interior grooves formed the interior surfaces of the shells to locate the assembly vertically in the shell. An alignment rib provided in a groove in a shell extends into a recess formed in a circuit board edge in the groove to locate the assembly longitudinally along the groove in the body.

Abstract: A base for mounting on a DIN rail includes a body and a latch assembly on the bottom of the body. The latch assembly has an elongate actuator extending to one side of the base and a latch member attached to the actuator for engaging the DIN rail. The release member is held on the base in an assembly position to facilitate mounting of the attachment member on the release member and the base, and is then shifted to an operative position.

Abstract: An electronic module for mounting on a base includes a module body and a latch extractor assembly having a metal latch member with a spring arm, a shift member and a latch, and an extractor engageable with the shift member for movement of the latch out of engagement with the base.