The MCK-1-2 from Alarm Controls is a mortise cylinder key switch with 1.75″ SPDT alternate, designed for robust performance and security. Its durable construction and user-friendly features make it an ideal choice for controlling access points effectively.
Alarm Controls MCK-1-2 Key Switch Features
- Stainless Steel Plate: Accepts standard 1-1/8″ mortise cylinders, ensuring compatibility and durability for long-term use.
- Compact Depth: Depth behind plate is 1.25″, allowing for easy installation in tight spaces.
- Color-Coded Leads: Switches terminated in colored leads simplify wiring and reduce installation errors.
- High-Rated Switch Contacts: Rated at 4A @ 28VDC, providing reliable performance for various applications.
- Versatile LED Operation: LEDs operate on 12 or 24 volts AC or DC, offering flexible integration with existing systems.
- Tamper-Proof Design: Comes with slotted-head screws to enhance security and deter unauthorized access.
Detailed Specifications for Alarm Controls MCK-1-2
| Feature | Detail |
| Type | Mortise Cylinder Key Switch |
| SPDT Configuration | 1.75″ |
| Material | Stainless Steel |
| Compatible Cylinder Size | 1-1/8″ |
| Depth Behind Plate | 1.25″ |
| Contact Rating | 4A @ 28VDC |
| LED Voltage | 12 or 24 Volts AC/DC |
| Security Features | Tamper-Proof with Slotted-Head Screws |



















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