Eaton ZP-IHK Auxiliary Switch 1NO+1NC 3A 250VAC 286052

Control panels and automation systems demand reliable status feedback from power distribution components. The Eaton ZP-IHK auxiliary switch (MPN 286052) is a compact snap-on accessory for ZP-series miniature circuit breakers and PKZM0/PKZM4 motor protective circuit breakers. It delivers a clean 1 NO + 1 NC contact set that indicates whether the breaker is tripped or closed, enabling remote monitoring or interlocking without opening the main circuit.

Key specifications

• Product Type: Auxiliary Switch
• Series: ZP-IHK
• Contact Configuration: 1 Normally Open (NO) + 1 Normally Closed (NC)
• Rated Operational Current (Ie): 3 A
• Rated Operational Voltage (Ue): 250 V AC
• Mounting Type: Side Mounting
• Compatibility: Eaton ZP-series Miniature Circuit Breakers (MCBs), PKZM0, PKZM4 Motor Protective Circuit Breakers
• Connection Type: Screw Terminals
• Terminal Capacity: 0.75 – 2.5 mm² (solid/stranded)
• Degree of Protection: IP20
• Operating Temperature Range: -25 to +55 °C
• Storage Temperature Range: -40 to +80 °C
• Electrical Life: > 100,000 operations
• Standards: IEC/EN 60947-5-1
• Pollution Degree: 3
• Housing Material: Thermoplastic

Why choose it

The ZP-IHK is engineered for straightforward installation: it clips securely to the side of the breaker, and its screw terminals accept solid and stranded wires up to 2.5 mm². The combination of NO and NC contacts gives flexibility for signalling, control, and interlock circuits. With a wide operating temperature range and long electrical life, it suits demanding industrial environments.

Ideal use cases

• Remote status indication for lighting and power distribution panels
• Interlocking of motor starters and control circuits
• Feeding PLC or building management inputs with breaker status
• Fail-safe monitoring in safety circuits

Good to know

This auxiliary switch is designed for side mounting onto compatible Eaton breakers, providing local or remote indication of the main circuit state. The screw terminals ensure secure wiring, and the IP20 protection rating makes it suitable for use inside control cabinets. Compliance with IEC/EN 60947-5-1 guarantees dependable performance in industrial applications.