Opening Detector for Steel Doors (Art. no. MK4200)

  • NC switching contact and tamper loop
  • 4-wire cable, 1.2 m
  • High switching distances, high wear resistance
  • Mountable on any material, particularly steel doors

Opening Detector for Steel Doors (Art. no. MK4200)

We expressly recommend having this product installed by a certified specialist.

The robust aluminium opening detector for steel doors is a magnetic contact for protecting large (garage) doors. Unauthorised opening is detected and reported to the alarm panel. This opening detector is ideal for fitting to steel and metal doors. Its special construction enables its use on these materials. The detector consists of a magnetic contact (reed) and a magnet. These are fitted parallel to each other. The electric circuit of this NC opening detector is normally closed (NC). If the distance between reed and magnet increases, the circuit is broken and an alarm reported. Its extremely robust aluminium housing protects it from damage even when driven over. The door opening detector for steel doors is VdS certified.

Art. no.: MK4200
Dimensions: (WxHxD) 19x80x18 mm
Connections: NC, max. contact capacity 200 V DC / AC / 1 A / 10 W
Width: 19 mm
Type of detection: Magnetic field measurement
Stray-field protection:
Housing material: Aluminium
Height: 80 mm
Cable type: 4-core
Cable length: 1,2 m
Length: 18 mm
Max. operating temperature: 55 °C
Installation location: Setup, sensing distance to metal 14 mm, sensing distance to non-metal 21 mm
Tamper monitoring:
IP protection class: 65
Sensor type: Reed contact

Scope of delivery:

  • 1x Opening Detector for Steel Doors
  • 1x Connecting cable, 1.2 m

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Opening detectors

Seamless protection of the external shell is the cornerstone of every electronic building security system. The opening detectors of the Terxon wired/hybrid alarm system secure doors and windows. Surface-mounted and flush-mounted versions are available for installation depending on the requirements. ...
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