Eaton PKE12/XTU-4 Motor Protective Circuit Breaker, 3-Pole, 0.3-12 A, 690 V AC 121732

The Eaton PKE12/XTU-4 motor protective circuit breaker offers a wide adjustable current range from 0.3 A to 12 A, making it suitable for protecting motors with varying load profiles. Unlike fixed-range breakers, its thermal-magnetic trip unit allows precise adaptation to the motor's rated current, ensuring reliable protection against overload and short-circuit conditions.

Highlights

• Adjustable thermal overload release from 0.3 A to 12 A
• Fixed magnetic short-circuit release at approximately 14 x Iu
• High breaking capacity: 100 kA at 400 V AC, 50 kA at 690 V AC
• 3-pole design for three-phase motor protection
• Screw terminals for secure wiring
• DIN rail or screw mounting

In daily use

Install the PKE12/XTU-4 on a DIN rail or with screws, connect the motor supply and load conductors to the screw terminals, and set the desired overload current using the adjustment dial. The breaker trips on sustained overload or short circuit, protecting the motor and wiring. Its compact design and IP20 terminal protection make it suitable for industrial control panels.

Full specifications

• Product type: Motor protective circuit breaker
• Number of poles: 3
• Rated operational current (Ie): 0.3 - 12 A (adjustable)
• Rated operational voltage (Ue): up to 690 V AC
• Rated ultimate short-circuit breaking capacity (Icu) at 400 V: 100 kA
• Rated ultimate short-circuit breaking capacity (Icu) at 690 V: 50 kA
• Tripping characteristic: Thermal-magnetic
• Thermal overload release setting range: 0.3 - 12 A
• Magnetic short-circuit release: fixed at 14 x Iu (approx. 168 A)
• Mounting type: DIN rail / screw mounting
• Connection type: Screw terminals
• Protection degree: IP20 (terminals)
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated frequency: 50/60 Hz
• Standard compliance: IEC/EN 60947-4-1, VDE 0660
• Ambient operating temperature: -25 to +55 °C

Final note

The PKE12/XTU-4 is a versatile motor protective circuit breaker for industrial applications requiring adjustable overload protection and high short-circuit capacity.