Xian Sulab Machinery Co., Ltd.
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Safety Interlock Device: Ensures elevator doors remain securely locked while the cab is in motion.
Prevents Accidental Door Opening: Critical for compliance with elevator safety standards (EN 81, ASME A17.1).
Electrical Contact Switch: Cuts power or signals the control system if the door is not properly locked.
Type: Normally Closed (NC) or Normally Open (NO) contact (varies by model).
Actuation Method:
Mechanical (activated by door movement)
Magnetic (in some advanced versions)
Voltage/Current Rating: Typically 24V DC/AC or 110V AC, 2–5A (verify exact specs for your model).
Durability: Designed for high cycle counts (100,000+ operations).
Material:
Housing: Reinforced plastic or metal (zinc/aluminum alloy).
Contacts: Silver-plated for reliable conductivity.
IP Rating: Usually IP54 or higher (dust and splash resistant).
Mounting Position: Installed on elevator door tracks, car doors, or landing doors.
Commonly Used In:
Otis, ThyssenKrupp, Mitsubishi, Hyundai, and KONE elevators (compatible with many brands).
Passenger & freight elevators.
Compliance: Meets EN 81-20/50, ASME A17.1, and other regional elevator safety codes.
Fail-Safe Design: Ensures elevator stops if the switch malfunctions.
Elevator won’t run (door lock signal missing).
Intermittent operation (loose wiring or worn contacts).
Error codes (e.g., "Door Lock Fault" on the control panel).