Eaton Motor Protection Circuit Breaker 40A to 50A, 690V AC, 3 Poles, PKZM 4 Series, Model 222355 PKZM4-50

Eaton 222355 PKZM4-50 Motor Protection Circuit Breaker is a robust device engineered for motor safety in industrial and commercial electrical systems. This 3-pole circuit breaker features an adjustable current rating between 40A and 50A, supporting supply voltages up to 690V AC. It swiftly trips upon detecting overcurrent, which prevents damage to motorized machinery and minimizes equipment downtime.

The device mounts easily on a standard DIN rail without requiring tools, enabling fast and efficient installation in various electrical panels. Its labelled terminals ensure accurate and straightforward wiring, reducing installation errors. Control interfaces combine rotary and screw dial types, allowing hassle-free resetting and fine current adjustment tailored to specific application requirements.

The insulating plastic housing reduces the risk of user exposure to hazardous loads, enhancing safety during maintenance or operation. Its current transformer sensing ensures sensitive detection of electrical faults, making it suitable for protection in HVAC systems, manufacturing equipment, and other motor-related applications.

Designed to function reliably in harsh environments, this breaker tolerates operating temperatures ranging from -25°C minimum to 55°C maximum. Its compact form factor, with an overall length of 140mm, width of 55mm, and depth of 160mm, fits conveniently in constrained spaces. The breaker is certified to meet rigorous standards including VDE 0660 Part 102 and IEC/EN 60947-4-1, and complies with RoHS for environmental safety.

Users benefit from the breaker's ability to monitor phase failure and overcurrent conditions, protecting critical motor components from electrical faults. It also allows flexible installation configurations with a 90° tilting capacity to accommodate awkward cabinet spaces.

This Eaton PKZM 4 series model provides dependable motor circuit protection in industrial, automation, manufacturing, and HVAC applications, ensuring enhanced operational reliability and system safety.

Tool-free DIN rail mounting for quick installation. Labelled terminals simplify wiring connections. Rotary and screw dial controls enable easy resetting and current adjustment. Insulating plastic housing enhances user safety against electrical hazards.

Compatible with both single-phase and three-phase supply voltages up to 690V. Flexible installation with up to 90° tilt in any direction for tight cabinet spaces. Incorporates current transformer sensing for precise motor protection.

Rated to operate in temperatures from -25°C to 55°C. Compact dimensions: 140mm length, 55mm width, and 160mm depth. Certified to standards VDE 0660 Part 102, IEC/EN 60947-4-1 and RoHS compliant. Discover more about Eaton's reliable Motor Protection Circuit Breakers and related electrical components in the Electronics & Electricals category at EnvMart.