Eaton PKZM0-25-T Motor Protection Circuit Breaker, 25 A, 3-Pole, Thermal-Magnetic, Screw Terminals 278493

Protect motors from overloads and short circuits with the Eaton PKZM0-25-T motor protection circuit breaker. This 3-pole thermal-magnetic breaker offers adjustable overload protection from 20 to 25 A and a fixed magnetic trip at approximately 350 A, ensuring reliable operation for industrial motor control applications.

Who is it for

Electrical engineers, panel builders, and maintenance technicians who need a compact and dependable motor protection solution for three-phase motors up to 25 A. Suitable for DIN rail or screw mounting in control cabinets and machine installations.

Main features

• Adjustable thermal overload release: 20–25 A
• Fixed magnetic short-circuit release: approx. 350 A (14 × Ie)
• 3-pole design with screw terminals for secure wiring
• Phase failure sensitive for added motor protection
• Rotary knob control for easy adjustment
• Mounts on DIN rail or with screws

Specifications

• Rated operational current (Ie): 25 A
• Overload release setting range: 20–25 A
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated operational voltage (Ue): 690 V AC
• Number of poles: 3
• Connection type (main circuit): Screw terminals
• Short-circuit breaking capacity (Icu) at 400 V: 50 kA
• Degree of protection (terminals): IP20
• Ambient operating temperature: -25 to +55 °C
• Standard compliance: IEC/EN 60947
• Frame size: PKZM0

Tips

For added functionality, auxiliary contacts can be mounted externally. Ensure proper sizing by selecting the overload setting within the 20–25 A range based on motor full-load current.