Eaton PKZM0-2.5-T Motor Protective Circuit Breaker, 3-Pole, 1.6-2.5 A, Thermal-Magnetic 088913

The Eaton PKZM0-2.5-T is a motor protective circuit breaker that combines thermal overload and magnetic short-circuit protection in a compact 3-pole design. Unlike standard miniature circuit breakers, it is specifically engineered to protect motors from phase failure and overload conditions, with a fixed magnetic trip at 35 A for rapid short-circuit interruption. Its adjustable thermal release from 1.6 to 2.5 A allows precise matching to motor full-load current, reducing nuisance tripping while maintaining robust protection.

Highlights

• 3-pole motor protection with thermal-magnetic tripping characteristic
• Adjustable overload release from 1.6 A to 2.5 A
• Fixed magnetic short-circuit release at 35 A
• High breaking capacity: 50 kA at 400/415 V AC
• DIN rail or screw mounting for flexible installation

In daily use

Installed on a 35 mm DIN rail, the PKZM0-2.5-T provides reliable protection for small motors in industrial control panels. Its screw terminals accept conductors up to 6 mm², and the transparent cover allows visual confirmation of the trip setting. The device operates in ambient temperatures from -25 °C to +55 °C, making it suitable for demanding environments.

Full specifications

• Current rating: 1.6 - 2.5 A (adjustable)
• Number of poles: 3
• Rated operational voltage: up to 690 V AC
• Rated impulse withstand voltage: 6 kV
• Short-circuit breaking capacity (Icu): 50 kA at 400/415 V AC
• Service breaking capacity (Ics): 100% of Icu
• Degree of protection: IP20
• Mounting: DIN rail (35 mm) or screw fixing
• Connection: screw terminals, 1 x (1-6 mm²) or 2 x (1-2.5 mm²)
• Ambient operating temperature: -25 to +55 °C
• Standards: IEC/EN 60947-4-1, VDE 0660

Final note

The PKZM0-2.5-T is a dependable choice for motor protection in industrial applications, offering precise overload adjustment and high breaking capacity in a compact form factor.