Eaton PKZM0-32-SPI3 interruptor de protección de motor, tripolar, 25-32 A, 690 V 199203

The Eaton PKZM0-32-SPI3 motor protection circuit breaker is a 3-pole thermal-magnetic device engineered for reliable protection of motors up to 32 A. Its fixed magnetic trip at 448 A ensures fast short-circuit interruption, while the adjustable thermal overload (25-32 A) allows precise matching to motor full-load current. With a 50 kA breaking capacity at 400 V, it handles high fault currents in industrial settings. Screw terminals and DIN rail/screw mounting simplify installation in control panels. The compact design and IP20 terminal protection make it a practical choice for motor branch circuits.

Highlights

• Adjustable overload release: 25-32 A
• Fixed magnetic trip: 448 A
• High breaking capacity: 50 kA at 400 V
• 3-pole, thermal-magnetic
• DIN rail or screw mounting

In daily use

Set the overload dial to the motor's rated current, wire the three phases to the screw terminals, and snap the breaker onto a DIN rail. The thermal element protects against sustained overloads, while the magnetic element trips instantly on short circuits. The clear trip indication helps identify faults quickly, minimizing downtime.

Full specifications

• Type: Motor Protection Circuit Breaker
• Number of Poles: 3
• Overload Release Setting Range: 25 - 32 A
• Short-Circuit Release (Magnetic): 448 A (fixed)
• Rated Operational Voltage (Ue): 690 V AC
• Rated Insulation Voltage (Ui): 690 V
• Rated Impulse Withstand Voltage (Uimp): 6 kV
• Rated Ultimate Short-Circuit Breaking Capacity (Icu) at 400V: 50 kA
• Rated Service Short-Circuit Breaking Capacity (Ics) at 400V: 50 kA
• Mounting Type: DIN rail / Screw mounting
• Degree of Protection (IP): IP20 (Terminals), IP00 (Front)
• Connection Type: Screw terminals
• Ambient Operating Temperature: -25 to +55 °C
• Standard Compliance: IEC/EN 60947-4-1
• Tripping Characteristic: Thermal-magnetic

Final note

The PKZM0-32-SPI3 is a robust and adjustable motor protection solution for industrial applications, offering high breaking capacity and flexible mounting.