Magnasphere Corp MSS-201C-GRAY Recessed Magnetic Contact

Product Description

The MAGNASPHERE CORP MSS-201C-GRAY is a recessed magnetic contact designed for closed-loop security and access-control circuit applications. Supplied in gray housing, this unit fits a standard 3/4-inch recessed bore and ships with 12-inch leads for direct termination to control panels or alarm wiring. The closed-loop configuration means the circuit is complete when the magnet and switch are in proximity, triggering an alarm state when the door or window opens. Installation is straightforward for security technicians and licensed electricians familiar with low-voltage detection systems.

This recessed contact is suited for residential and light commercial door and window monitoring installations. The 3/4-inch body diameter allows it to be mounted flush within a drilled bore in wood, aluminum, or hollow-metal door frames, keeping the hardware concealed and tamper-resistant. The 12-inch lead length provides enough wire to route through the frame or door edge to the nearest junction point without splicing in most standard frame depths.

Key Features

• 3/4-inch recessed body fits standard drilled bore for flush, concealed mounting
• Closed-loop wiring configuration provides fail-safe alarm detection
• 12-inch pre-attached leads allow direct termination without additional wire splicing in most installations
• Gray housing blends with common door frame finishes
• Single-unit packaging for individual replacement or new-point installation

Compatibility

Designed as an OEM-style recessed magnetic contact for use in standard closed-loop low-voltage security and access-control systems requiring a 3/4-inch recessed contact format.

Installation Notes

Installation is typically performed by a licensed electrician or certified security technician familiar with low-voltage alarm wiring. De-energize the alarm panel or control loop before connecting or disconnecting leads. Drill the recessed bore to the correct 3/4-inch diameter and depth to ensure full seating of the contact body. Secure and route leads in compliance with applicable local codes and the control panel manufacturer's wiring guidelines.