Moeller
Moeller Switching Protecting and Driving Motors Motor-protective circuit-breakers
Overview
Motor-protective circuit-breakers have been manufactured by Moeller since 1932. Our ideas and developments have decisively influenced the trends in the protection of motors since then. The results are progressive concepts and marketable product innovations that again and again assume the role of international trendsetting, pioneering products.
The awareness of this long tradition in the motor protection field has helped establish and maintain a core competence which has remained intact through to today. The term PKZ is not just the embodiment of quality, but also the synonym used by experts for motor-protective circuit-breakers
PKZ 2 Motor and System-Protective Circuit-Breakers
Plug-in trip blocks: Fast adaption to engineering changes
Various plug-in trip blocks allow the PKZ 2 to be converted in no time at all. 3-pole and 4-pole trip blocks are available for motor and system protection. Differential signalling clearly indicates the switching states of the circuit-breaker.
Auxiliary contact modules, voltage releases or trip-indicating auxiliary contacts can be fitted quickly and easily.
When used in combination with the PKZ 2 basic unit, the ZMR-PKZ 2 plug-in trip block with overload relay function switches off the downstream contactor rather than disconnecting the circuit-breaker in the event of a motor overload. The PKZ 2 thus remains switched on and does not need to be manually reset.
PKZ 2 has intelligent accessories to allow flexible solutions for a wide range of communication tasks. The RS-PKZ 2 electronic remote operator can be actuated directly, without any coupling elements from the semi-conductor outputs of a PLC (24 V DC)
