MC-52 Wired Magnetic Door Sensor, NC Reed Switch, Zinc Alloy

MC-52 Wired Magnetic Door Sensor, NC Reed Switch, Zinc Alloy
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  • Product Code:SQ2927
  • Availability: 1000
  • $1.59
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  • Ex Tax:$1.59

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Tags: MC-52, magnetic door sensor, reed switch NC, wired door contact, surface mount sensor, zinc alloy sensor, garage door contact, alarm sensor, magnetic window switch, 2-wire sensor

The MC-52 is a wired magnetic door and window sensor built around a normally closed (NC) reed switch, designed to detect the open or closed state of doors, windows, cabinets, and roller shutters in security and access-control systems. The sensor consists of two mating parts: a switch unit and a permanent magnet. When the door or window is closed, the magnet sits within the sensor's operating gap and holds the reed contact closed, completing the circuit. When the door opens and the magnet moves beyond the rated gap, the reed contact releases and the circuit opens, signaling an alarm or status change to the connected controller.

This surface-mount magnetic contact is housed in a silver-gray zinc alloy shell, offering good resistance to moisture and mechanical wear in garages, warehouses, shops, and industrial enclosures. The switch is rated for a maximum voltage of 100V, a maximum current of 0.5A, and a maximum power of 10W, making it compatible with most low-voltage alarm panels and access-control inputs. The two-wire connection simplifies wiring: the sensor can be looped directly into an alarm zone or a microcontroller input with a pull-up resistor.

The MC-52 door window sensor is commonly used on roller shutter doors, overhead garage doors, sliding gates, fire doors, metal cabinets, and windows. Its compact body and screw-terminal or wire-lead connection allow fast installation on both new and existing openings. Whether used in a commercial burglar alarm system or a DIY smart-home door-status monitor, the MC-52 provides a simple, passive, and reliable binary indication of whether an opening is secure.

MC-52 door window sensor Application

  1. Burglar alarm systems for garages, warehouses, shops, and buildings
  2. Door and window open/close status detection
  3. Rolling shutter and overhead garage door monitoring
  4. Access control systems for metal doors and cabinets
  5. Fire door position monitoring
  6. DIY smart-home door and window sensors
  7. Industrial enclosure and cabinet security
  8. Sliding gate and folding door status sensing

MC-52 door window sensor Specifications

  1. Product Model: MC-52
  2. Sensor Type: Wired magnetic reed switch
  3. Contact Form: Normally Closed (NC) / Normally Open (NO) / NO+NC options available
  4. Maximum Voltage: 100V DC
  5. Maximum Current: 0.5A
  6. Maximum Power: 10W
  7. Operating Gap (Sensing Distance): 25–35 mm (MC-52 datasheet)
  8. Housing Material: Zinc alloy, silver-gray plating
  9. Body Dimensions: 49 × 19 × 10 mm (approx.)
  10. Cable Length: 260 mm (approx., lead type)
  11. Mounting Type: Surface mount
  12. Connection: 2-wire (NC model)
  13. Operating Principle: Magnetic reed switch
  14. Suitable Applications: Metal doors, windows, cabinets, roller shutters

Features

  1. Normally Closed (NC) reed switch contact for fail-safe open-circuit signaling
  2. Rated for 100V DC, 0.5A, and 10W maximum load
  3. Zinc alloy housing with silver-gray plating for durability
  4. Surface-mount design for quick installation on doors, windows, and cabinets
  5. Two-wire connection for simple integration with alarm panels and microcontrollers
  6. Passive operation requires no external power supply
  7. Operating gap of 25–35 mm for reliable magnet separation detection
  8. Suitable for metal doors, roller shutters, fire doors, and industrial enclosures
  9. Compact body measuring approximately 49 × 19 × 10 mm
  10. Available in NO, NC, and NO+NC contact configurations
  11. Resistant to moisture and mechanical wear in garage and warehouse environments
  12. Ideal for burglar alarm, access control, and DIY smart-home projects
Sensor Parameters
Alarm Distance 30 - 40mm
Electrical Parameters
Working Current 0.5A
Working Voltage 100V
Power 10W
Physical Parameters
Weight 42g
Material Zinc alloy

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