Eaton PKE12 Electronic Motor Protection Circuit Breaker 0.3-12 A 3-Pole IP20

In industrial control panels and motor control centers, the Eaton PKE12 electronic motor protection circuit breaker safeguards three-phase motors from overload and short-circuit faults. Its adjustable current setting from 0.3 to 12 A allows precise matching to the motor's full-load current, while the electronic trip unit ensures reliable protection and phase failure sensitivity. The compact 3-pole design fits standard DIN rails, making it suitable for machine builders and panel builders who need dependable motor protection in a small footprint.

Key specifications

• Current setting range: 0.3 - 12 A
• Rated operational current: 12 A
• Rated operational voltage: 690 V AC
• Number of poles: 3
• Protection class: IP20
• Short-circuit breaking capacity at 400 V AC: 100 kA
• Mounting type: DIN rail / screw mounting
• Ambient operating temperature: -25 to +55 °C

Why choose it

The PKE12 combines electronic accuracy with a wide adjustment range, eliminating the need for multiple thermal overload relays. Its high breaking capacity and phase failure sensitivity enhance motor uptime and safety. Rotary knob control simplifies setting, and screw terminals ensure secure wiring.

Ideal use cases

• Protecting three-phase motors in industrial machinery
• Motor control centers and distribution boards
• Pump and fan applications with varying load conditions
• Replacing traditional thermal-magnetic motor protection switches

Good to know

The PKE12 is compliant with IEC/EN 60947-4-1 and IEC/EN 60947-2. It is a base unit without auxiliary contacts; accessories can be added for signaling or remote control. The device is designed for DIN rail or screw mounting, offering flexibility in panel installation.