SULAB SEL1-A1ZP0 Elevator Door Contactor 1NC IP20 16x50mm

Elevator door lock contactor auxiliary contact switch elevator door lock switch elevator contactor elevator door contactor SEL1-A1ZP0

The SEL1-A1ZP0 is an elevator door contact switch manufactured by BERNSTEIN and belongs to the SEL series. A description is provided below:

Operating Principle: The switch contacts are designed with springs. Each time they are operated, the contact plate and the operating head undergo mechanical movement, removing dirt, dust, and oxide layers, ensuring reliable electrical contact.
Contact Type: 1NC contact.
Protection Rating: IP20.
Mechanical Life: Over 10 million switching cycles.
Dimensions: 16mm H × 50mm W × 24.5mm D.
Casing Material: PC (UL94-V0), available in red or transparent.
Ambient Temperature: –30°C to +70°C.

Determine the installation location.
According to the elevator door operator drawings, the SEL1-A1ZP0 is typically installed near the locking mechanism of the landing door or car door. It must precisely coordinate with the door operator's mechanical trigger (such as the lock hook or linkage):
When the door is fully closed, the mechanical trigger should reliably press the switch operating head, causing the contacts to be in the "closed" or "open" state (depending on the circuit design, 1NC contacts are normally closed and open when pressurized).
When the door opens, the trigger disengages, automatically resetting the switch and switching the contact state.
The installation location must ensure that the contact between the switch and the trigger does not stick during the door opening and closing process, and the trigger travel meets the switch specifications (typically, a trigger travel of 1-3mm is sufficient for reliable operation).