Description
Magnetic Reed Metal Switch Door Sensor with Wire MS-9 (Normal Close)
The MS-9 Metal Magnetic Reed Switch (NC) is a rugged, surface-mount sensor designed for high-security and industrial applications. Constructed with a metal alloy housing, it offers superior durability and resistance to tampering, making it ideal for industrial shutters, gates, and heavy doors. This model is Normally Closed (NC), meaning the circuit remains closed when the magnet and switch are aligned. When the door or window opens and the magnet separates, the circuit opens, sending a trigger signal to the alarm or control system.
Technical Specifications:
- Model: MS-9 (NC)
- Type: Magnetic Reed Switch (Normally Closed)
- Housing Material: Die-cast metal alloy (grey finish)
- Design: Rectangular surface-mount with screw holes
- Switch Part Dimensions:
- Length: 49 mm
- Width: 19.5 mm
- Wire Length: 2.9 mm
- Magnet Part Dimensions: Same size for alignment
- Contact Rating: 500 mA @ 100 V DC (typical)
- Operating Gap (Sensing Distance): 25–40 mm
- Wire Leads: 2-wire connection, approx. 300 mm length
- Switch Type: Reed contact (NC – opens when magnet moves away)
- Mounting Style: Surface mount with countersunk screw holes
Features:
- Heavy-duty metal housing for industrial and outdoor use
- Normally Closed (NC) reed switch operation
- Wide sensing gap for reliable detection on large/heavy doors
- Tamper-resistant and vibration-resistant construction
- Surface-mount design with secure screw fitting
- Works with all standard wired alarm and access control systems
- Long-lasting durability in harsh environments
Applications:
- Industrial Security: Rolling shutters, warehouse entry points, factory gates
- Commercial Buildings: High-security offices, banks, and shops
- Residential Security: Metal gates, garages, main entry doors
- Harsh Conditions: Dusty, vibrating, or outdoor environments
- Automation & IoT Systems: Integrated into access control and industrial monitoring