Abstract: A device for protecting a user includes a first current path including a first and second conduit, and a monitoring device for detecting an imminent overload of the electric user. In an embodiment, the monitoring device includes a first temperature measurement unit, a support, an evaluation unit and a first transducer to produce an electrically conductive connection between the first and second conduits of the first current path. The first temperature measurement unit is, electrically insulated from the first transducer and includes a first temperature sensor. An additional electrically insulating material; is arranged on a first lateral surface of the support between the first transducer and the support and the first temperature sensor is arranged on the support to detect a temperature of the first transducer. The evaluating unit is configured to detect an imminent overload at the user on the basis of temperatures detected by the first temperature sensor.

Abstract: A device is disclosed for protecting a consumer, with a first current path having two lines, and a monitoring arrangement for detecting an imminent overload of the electrical consumer. In order to enable the detection of an imminent overload of a consumer, it is proposed that the monitoring arrangement includes a first temperature measuring unit, an evaluation unit and a first measuring element, which establishes an electrically conductive connection between the two lines of the first current path. The first temperature measuring unit is electrically isolated from the first measuring element and includes a first and a second temperature sensor. The first and second temperature sensor of the first temperature measuring unit are configured to simultaneously record a temperature of the first measuring element and the evaluation unit is configured to detect an imminent overload of the consumer based upon the recorded temperatures of the first temperature measuring unit.

Abstract: A triggering unit includes a tappet having a moving bearing, a power accumulator, a holding device and a printed circuit board coil. In the normal state the power accumulator acts upon the tappet with a power accumulator force in the direction of the first stop position and the holding device holds the tappet with a holding force in the second stop position. A printed circuit board coil force can be generated by an activation of the printed circuit board coil. The power accumulator, the holding device and the printed circuit board coil are formed such that the tappet rests in the second stop position in the inactive state of the printed circuit board coil and through an activation of the printed circuit board coil, the tappet assumes the first stop position such that the triggered status is given.

Abstract: A device for protecting a user includes a first current path including a first and second conduit, and a monitoring device for detecting an imminent overload of the electric user. In an embodiment, the monitoring device includes a first temperature measurement unit, a support, an evaluation unit and a first transducer to produce an electrically conductive connection between the first and second conduits of the first current path. The first temperature measurement unit is, electrically insulated from the first transducer and includes a first temperature sensor. An additional electrically insulating material; is arranged on a first lateral surface of the support between the first transducer and the support and the first temperature sensor is arranged on the support to detect a temperature of the first transducer. The evaluating unit is configured to detect an imminent overload at the user on the basis of temperatures detected by the first temperature sensor.

Abstract: A device is disclosed for protecting a consumer, with a first current path having two lines, and a monitoring arrangement for detecting an imminent overload of the electrical consumer. In order to enable the detection of an imminent overload of a consumer, it is proposed that the monitoring arrangement includes a first temperature measuring unit, an evaluation unit and a first measuring element, which establishes an electrically conductive connection between the two lines of the first current path. The first temperature measuring unit is electrically isolated from the first measuring element and includes a first and a second temperature sensor. The first and second temperature sensor of the first temperature measuring unit are configured to simultaneously record a temperature of the first measuring element and the evaluation unit is configured to detect an imminent overload of the consumer based upon the recorded temperatures of the first temperature measuring unit.

Abstract: A triggering unit includes a tappet having a moving bearing, a power accumulator, a holding device and a printed circuit board coil. In the normal state the power accumulator acts upon the tappet with a power accumulator force in the direction of the first stop position and the holding device holds the tappet with a holding force in the second stop position. A printed circuit board coil force can be generated by an activation of the printed circuit board coil. The power accumulator, the holding device and the printed circuit board coil are formed such that the tappet rests in the second stop position in the inactive state of the printed circuit board coil and through an activation of the printed circuit board coil, the tappet assumes the first stop position such that the triggered status is given.

Abstract: A control module with connection devices for connection to connection terminals of a load feeder is disclosed. The control module may include a device interface for at least one connection, the interface being independent of the bus system, with a shut-off element able to be connected to the at least one connection device and with the load feeder able to be shut off by way of the shut-off element independently of the bus system. The control module may be plugged into connection terminals of the load feeder.

Abstract: A control module with connection devices for connection to connection terminals of a load feeder is disclosed, wherein the load feeder with the control module is connected to a bus system. In at least one embodiment, the control module includes a device interface for at least one connection, interface being independent of the bus system, with a shut-off element able to be connected to the at least one connection device and with the load feeder able to be shut off by way of the shut-off element independently of the bus system.

Abstract: A description is given of antifreeze concentrates which comprise a) at least one water-miscible alcohol which lowers the freezing point; b) at least one corrosion inhibitor; and c) as reserve alkalinity donor, at least one mono- or polycyclic aromatic compound which has at least one hydroxyl group and a high buffer capacity in the pH range from about 6 to 10 and of coolant compositions which comprise said concentrates and are intended for the cooling circuits in internal combustion engines.

Abstract: The present invention relates to novel silicate-, borate- and nitrate-free antifreeze concentrates based on alkylene glycols or derivatives thereof which include an inhibitor combination essentially comprising salts of carboxylic acids together with hydrocarbon-triazoles and/or -thiazoles. These antifreeze concentrates are, in particular, entirely free from any salts of inorganic acids as corrosion inhibitors. The invention also relates to ready-to-use aqueous coolant compositions comprising these antifreeze concentrates.

Abstract: Quaternized imidazoles I ##STR1## in which R.sup.1 and R.sup.3 independently of one another are saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens,R.sup.2, R.sup.4 and R.sup.5 independently of one another are hydrogen or saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens, it being possible for R.sup.4 and R.sup.5, together with the corresponding imidazole carbons, to form a five- or six-membered ring, andX.sup..crclbar. is an anion,are used as corrosion inhibitors in the corrosion protection of nonferrous metals, especially for car radiator protection.

Abstract: Aircraft deicing or antiicing compositions based on glycols and water consist essentially of:a) from 80 to 92% by weight of alkylene glycol having 2 or 3 carbon atoms, an oxyalkylene glycol having 4 to 6 carbon atoms, or mixtures thereof,b) from 0.05 to 1.0% by weight of at least one nonionic surfactant comprising alcohols having 10 to 20 carbon atoms alkoxylated with from 1 to 10 equivalents of ethylene oxide, propylene oxide or mixtures thereof,c) from 0.1 to 0.8% by weight of polymeric carboxylic acid having a molecular weight of from 1,000 to 10,000,d) from 0 to 1.5% by weight of ammonia or of a hydroxyalkylamine,e) from 0 to 1.5% by weight of a further surfactant,f) from 0.01 to 0.8% by weight of at least one corrosion inhibitor, andg) water as remainder.

Abstract: Phosphate-containing, glycol-based coolant mixtures which are stable in hard water and are free of nitrites, silicates, amines and borates containa) 0.5-3% by weight of ammonium and/or alkali metal phosphateb) 2-5.5% by weight of ammonium or alkali metal benzoatec) 0.2-1.5% by weight of ammonium or alkali metal molybdated) 0.2-0.8% by weight of ammonium or alkali metal nitratee) 0.05-0.4% by weight of benzotriazolef) 0.05-0.4% by weight of tolyltriazoleg) 0.005-0.35% by weight of a water-soluble magnesium compoundh) 0.02-0.5% by weight of an oligomeric or polymeric carboxylic acid with a molecular weight of 1,000-100,000,i) 0.05-5% by weight of water and the amount of glycol necessary to make up to 100% by weight.

Abstract: Organosilane/silicate copolymers obtainable by reacting an organic phosphosilicon compound of the formula I ##STR1## where n, X, Y, R.sup.1 and R.sup.2 have the meanings stated in the description, with an alkali metal silicate, radiator antifreezes containing these compounds, their use as corrosion inhibitors in radiator antifreezes based on glycol, a method of inhibiting corrosion of aluminum by aqueous cooling media, containing radiator antifreeze based on glycol, during the cooling of internal combustion engines, and the use of organic phosphosilicon compounds for stabilizing silicates.

Abstract: Linear, basic polymer powders which contain units of the formula ##STR1## and have a Fikentscher K value of from 10 to 200 are prepared by eliminating the formyl groups from N-vinylformamide polymer powders with a gaseous hydrogen halide in the presence of not more than 5% by weight, based on the polymer used, of water.

Abstract: Hard abrasion-resistant carbon is obtained from polymerized halohydrocarbons by elimination of hydrogen halide in a two-stage process carried out so that in the first decomposition stage, which is carried out at temperatures within the range from 140.degree. to 250.degree.C, a definite amount (not less than 5% by weight and not more than 50% by weight) of the total amount of hydrogen halide capable of being split off is removed. Appropriately shaped end products can be obtained by using raw materials having a globular, cylindrical or other shape. The carbon obtained is suitable as the stationary phase for chromatographic separation and analysis of mixtures.