Eaton's Moeller series™ PKZ fuseless motor-protective circuit breakers combine short-circuit and overload protection in a single device. Two versions are available, covering the entire voltage range from 0.1 A to 63 A. And this with only 18 different types, which saves storage space and simplifies project planning. The motor-protective circuit breakers are fully compatible with Eaton’s proven DIL contactor series, and they are therefore ideally suited for use in motor-starter combinations. All accessories, including the integrated auxiliary switches, trip indicators, voltage releases and door coupling rotary handles, can be used for both the PKZM0 and the PKZM4.
If used in conjunction with the appropriate accessories, the circuit breaker can be turned into a main switch or emergency-stop switch in accordance with EN 60204 and/or VDE 0113
Hand-operated motor-protective circuit breaker in accordance with IEC/EN 60947-4-1, VDE 0660 Part 102
Rotary handle with ON & OFF switch-position indicator
Isolating characteristics in accordance with IEC/EN 60947-3
Special IP40, IP55 and IP65 housings offer high levels of protection against direct contact as well as ingress of water and particles; both surface- and flush-mounted enclosures are available.
UL/CSA (including Types E and F) approvals for the North American market
If used in conjunction with surface-mounting and flush-mounting enclosures, main switch and emergency-stop switch applications are also possible
All setting ranges are short-circuit proof up to 50 kA (400 V)
Proven and trusted: PKZM0
The PKZM0 motor-protective circuit-breaker can switch motors from 0.16 A to 32 A, with a short-circuit rating of 150 kA up to 12 A, and of 50 kA up to 32 A.
Simple and versatile: PKZM4
The PKZM4 covers the current range from 16 A to 63 A and has a switching capacity of 50 kA. It not only allows for safe and simplified project planning, but also eliminates the need for a current limiter.
Ideal for push and impact actuation (pressing or hitting)
The PKZM01 motor-protective circuit breaker for motors up to 25 A is ideal for small machines and other applications where push or impact actuation is the preferred means of operation. In addition, special IP65 and IP40 housings with emergency-stop buttons are also available.
The PKZ as part of the xStart system
Many applications require an auxiliary contact with different contact configurations for interlocking and signaling. By using a motor starter, however, it becomes possible to implement a more direct, safe and efficient control design.
All the information at your fingertips thanks to SmartWire-DT
The PKZ motor starter combinations can be integrated into any automation environment via SmartWire-DT. By enhancing data transparency, SmartWire-DT increases the efficiency and reliability of the drives in the vicinity of the motor-protective circuit breaker.
Energy efficiency is currently a hot topic
With Eaton, your systems are automatically compliant with the ErP directive in a simple, fast and economical way, while significantly reducing your energy costs.
Expertise that we are happy to share - the Eaton Moeller series
Eaton has been manufacturing the PKZ motor-protective circuit breaker since 1932. Since then, our ideas and innovations have made a major contribution to advances in motor protection. In this regard, the name PKZ not only stands for quality, but has also become a synonym for motor-protective circuit breakers among experts.
Send email
