K 8 Posts in this encyclopedia category
Card relay (plug-in/print relay)
Card relays, also called plug-in/print relays, are used for galvanic isolation of circuits as well as for signal matching and signal amplification. The horizontal and vertical versions allow...
Category (C)
Classification of the safety-related parts of a control system with regard to their resistance (K, B, 1, 2, 3, and 4) to faults and their behaviour in the event of a fault, which is achieved on...
Contact lifetime
Electrical service life indicating the expected number of switching cycles at a defined load, e.g. AC 15.
Coupling modules
Coupling modules are designed with positively driven contacts according to IEC 61810-3. The positively driven NC contacts enable monitoring of the NO contacts. As links between logic and load,...
Coupling relay
Electronic controls have long been an integral part of modern automation technology. As early as the beginning of the 1970s, they gradually replaced the contactor and relay controls that had been...
Creepage distance
Is the shortest distance along the surface of an insulating material between two conductive parts.
Cooling of wash-tight relays
After wave soldering, the assembly must be cooled down as gently and stress-free as possible to the desired low and constant temperature in a cold air flow before the washing process. If a washing...
Plastic housing
See electronics enclosures, control cabinet enclosures, distribution enclosures.