Eaton PKZM0-25-PI Motor Protection Circuit Breaker 25 A 690 V AC 3-Pole Thermal-Magnetic 199161

In industrial control panels and motor control centers, the Eaton PKZM0-25-PI motor protection circuit breaker safeguards three-phase motors against overloads and short circuits. With a rated operational current of 25 A and an adjustable overload release from 20 to 25 A, it is suited for protecting motors in pumps, fans, conveyors, and machine tools. The thermal-magnetic trip unit provides reliable protection, while the 50 kA breaking capacity at 400 V AC ensures safe interruption of high fault currents.

Key specifications

• Rated operational current: 25 A
• Overload release setting range: 20 - 25 A
• Rated operational voltage: 690 V AC
• Number of poles: 3
• Tripping characteristic: Thermal-magnetic
• Short-circuit breaking capacity at 400 V AC: 50 kA
• Short-circuit breaking capacity at 690 V AC: 10 kA
• Mounting type: DIN rail / screw mounting
• Degree of protection: IP20 (terminals)
• Connection type: Screw terminals
• Rated impulse withstand voltage: 6 kV
• Rated insulation voltage: 690 V
• Ambient operating temperature: -25 to +55 °C

Why choose it

The PKZM0-25-PI combines precise overload protection with high short-circuit breaking capacity in a compact design. Its adjustable thermal release allows fine-tuning to the motor's rated current, reducing nuisance trips. The screw terminals and DIN rail mounting simplify installation in standard distribution boards.

Ideal use cases

• Protection of three-phase motors in industrial machinery
• Motor starters in conveyor systems and pumps
• Control panels requiring reliable motor protection up to 25 A

Good to know

The device complies with IEC/EN 60947-2 and IEC/EN 60947-4-1 standards. It is suitable for use in ambient temperatures from -25 °C to +55 °C, making it versatile for various industrial environments.