Grade 1 Surface Mount Magnetic Door Contact White for Burglar Alarm MG-CON/W

Magnetic door contacts are the fundamental perimeter detection device in a hardwired alarm system: a magnet fixed to the door leaf and a reed switch housing fixed to the door frame generate a closed circuit when the door is shut. When the door opens, the magnet separates from the reed switch, opening the circuit and triggering the alarm zone.

The surface mount format mounts directly onto the face of the door frame and door leaf without requiring a rebated channel or a recessed cavity. This makes surface mounting appropriate for solid timber frames where routing a channel is difficult, UPVC door and window frames where cutting is not recommended, and metal-framed commercial doors where recessed installation is not practical.

Grade 1 classification indicates that the contact meets the minimum BS EN 50131 standard for alarm components. Grade 1 is the appropriate specification for properties with a standard residential security requirement and standard locking, where a higher-grade device is not specified by the system design.

The white housing matches the most common door frame and window frame finish in UK residential properties, blending with the frame surface and reducing the visual impact of the contact in furnished interiors.

For alarm engineers completing perimeter protection on hardwired burglar alarm systems across London and the UK where Grade 1 surface-mount white contacts are the specified device for door and window zones, the MG-CON/W provides the standard surface mount contact for this application.

Key Features

• Grade 1 surface-mount magnetic door and window contact
• White housing for standard UK residential door and window frames
• Surface mount: no routing or rebating of the frame required
• Compatible with timber, UPVC, and metal door and window frames
• Triggers on door or window opening via magnetic separation
• Standard wired zone circuit connection for hardwired alarm panels