Technical Parameters General Product Type: Auxiliary contact block Model: HK1‑11 Contact Configuration: 1 × Normally Open (NO) + 1 × Normally Closed (NC) Mounting Type: Side or front mount accessory (designed to attach to compatible manual motor starters or contactors) Compatible With: Motor starters and control devices such as MS116, MS132, MS165 series and similar units Series/Application: Auxiliary switch accessory for control and signaling Electrical Ratings Rated Operational Voltage: Up to approximately 690 V AC / 600 V DC Rated Current: Typical auxiliary circuit rating such as 1 – 6 A depending on application and variant Rated Insulation Voltage: Suitable for industrial control circuit limits Rated Impulse Withstand Voltage: High enough for industrial accessory roles Switching Capacity: Suitable for control and feedback applications, not for main power breaking Mechanical Terminal Connection: Screw terminal type for auxiliary wiring Contact Actuation: Auxiliary contacts operate in conjunction with the main switching element of the host starter or contactor Compact Construction: Space‑efficient design to fit alongside primary device Installation: Snap‑on or side mount to manual motor starters or control devices without separate panel mount Environmental & Operating Operating Temperature Range: Typical industrial ambient range (e.g., approx. −25 °C to +60 °C) Storage Temperature: Extended range for transport and storage Protection Rating: Auxiliary contact body suited to typical indoor control panel environments Mechanical Durability: Designed for frequent auxiliary switching cycles Applications Auxiliary feedback and status indication in motor starter control circuits Enhancing control logic for contactors and manual starters Interlocking, alarm signaling, and automation system interfaces Auxiliary switching for control circuits in industrial machinery and panels