Single-Keyed Half Cylinders with Microswitch Actuators for Elevators
Engineering Overview: Technical specifications for half Euro profile cylinders with electrical microswitch actuators for elevator access control and firefighter recall.
Technical & Engineering Specifications
| Compliance | ASME A17.1 / EN 81-73 Firefighter Recall |
|---|---|
| Application | Elevator Control Panels & Fire Service Recall |
| Cylinder Format | 10/30 mm Half Euro Profile DIN 18252 |
| Switch Mechanism | Cam-Driven SPDT / DPDT Industrial Microswitch |
Elevator Control & Fire Service Keying
Elevator operation panels and emergency recall panels utilize Half Euro Profile Cylinders with Electrical Actuator Cams.
Operational Functions
- Momentary Spring-Return: Turning the key triggers an elevator call pulse, automatically springing back to center.
- Firefighter Recall Mode: Key locks into Phase I / Phase II recall positions, transferring elevator car control exclusively to emergency services per ASME A17.1 / EN 81-73.
Frequently Asked Engineering & Selection Questions
Q1: How do elevator half cylinders integrate with electrical panels?
The rotating rear cam presses an electrical microswitch inside the panel to send an access or fire recall signal.