Motor protection and overload relays

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.

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Overview Models Resources Support

Approvals:

UL/CSA, CCC, ATEX

Screw-in/push-in combination device:

for use with three-phase busbar links

Tool-free wiring:

Push-in terminals

Core features

Hand-operated in accordance with IEC/EN 60947-4-1, VDE 0660 Part 102
Rotary handle with ON & OFF switch-position indicator
Can be turned into a main switch or emergency-stop switch in accordance with EN 60204 and/or VDE 0113
Isolating characteristics in accordance with IEC/EN 60947-3

UL/CSA (including Types E and F) approvals
All setting ranges are short-circuit proof up to 50 kA (400 V)
Special IP40, IP55 and IP65 housings offer high levels of protection against direct contact, ingress of water and particles
Main switch and emergency-stop switch applications are also possible

Connections with just one clever “click” – the PKZ motor-protective circuit breaker with Push-in technology

The Push-in terminals enable safe and easy control-panel wiring with just one click – no tools required. This not only speeds up wiring by up to 50 %, but is also much safer thanks to the shock and vibration-resistant terminals. The PKZ motor starters with Push-in terminals stand out for their higher ated current of up to 32 A and the screw-in/Push-in combination option for use with three-phase busbar links.

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How to improve the wiring of a control cabinet?

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Make wiring more efficient from start to finish

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Faster and more cost-effective The trick with the "click".

Push-in technology makes wiring switchgear cabinets faster and more secure than ever. What's more, with a modular system and wide range of accessories, you'll always find the right solution for your needs. The components are small and compact, so you can use them in existing switchgear cabinets, as well as to wire new ones. We even offer a combination Push-in/screw-in solution for use with three-phase busbar links. In other words, Push-in technology makes wiring significantly easier and operations even faster.

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.

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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.

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PKZ motor protection circuit breaker