Sdc MC-4 Concealed Magnetic Switch Spdt 5 Amp

Product Description

The SDC - SECURITY DOOR CONTROLS MC-4 is a concealed magnetic switch designed for door position monitoring in access control and security systems. It operates on a single-pole double-throw (SPDT) switching configuration rated at 5 amps, making it suitable for a range of low-voltage control circuit applications. The concealed form factor allows the switch to be recessed into the door and frame, keeping the hardware hidden from view while maintaining reliable reed-switch operation. Installation is typically performed by security integrators, locksmiths, or access control technicians.

The MC-4 is used in commercial and residential door hardware applications where a discrete, flush-mounted magnetic contact is preferred over surface-mount alternatives. Typical scenarios include monitoring the open or closed status of doors in access control panels, alarm systems, and building automation systems. Its SPDT output provides both normally open and normally closed circuit paths, giving installers flexibility in how the switch integrates with the control system.

Key Features

• Concealed mounting design keeps hardware hidden within the door and frame
• SPDT switching provides both normally open and normally closed output paths
• 5 amp contact rating supports a broad range of control circuit loads
• Magnetic actuation with no mechanical contact wear for long service life
• Sold individually as a single unit

Compatibility

Designed as an OEM-style concealed magnetic switch for door position monitoring in access control, intrusion alarm, and building automation applications where a recessed SPDT magnetic contact is required.

Installation Notes

Installation should be performed by a qualified security or low-voltage technician following applicable local codes and manufacturer guidelines. De-energize all connected control circuits before installing or servicing the switch. Proper alignment between the magnet and the switch body is critical for reliable actuation; verify gap tolerances per the product manual before finalizing installation. Consult the SDC product manual for mounting dimensions and wiring diagrams specific to this model.