MC440T

MC440T – Installation Manual

MC 440-T Instruction Manual 4-MC440T-01 © 2022 Alarmtech Rev. MC440T_2238en Page 1 of 2 Detectors Magnetic Contact Surface mounting Instruction Manual MC 440-T

DESCRIPTION

MC 4 40-T is a versatile surface-mounted magnetic contact used in both alarm and security access control s ystems for protection of doors and windows against unauthorised opening. It is equipped with an opening protection switch.

MOUNTING INSTRUCTIONS

 Contact and magnet should be installed in parallel, corresponding to each other. Offset will reduce the working distances.  Spacers must be used for installation on ferromagnetic surfaces.

CIRCUIT DIAGRAM

TECHNICAL DATA

Working environment Wood Steel Make distance typ. 31 mm +/– 40 % typ. 16 mm +/– 40 %a) Break distance typ. 39 mm +/– 40 % typ. 21 mm +/– 40 %a) Contact type form A, SPST Switching voltage max. 48 V DC/AC Switching current max. 400 mA DC/peak AC Contact rating max. 10 W Operating temperature range -10°C to +55°C Operating humidity max. 95% RH Housing material plastic ABS Dimensions: Contact part 65 x 15,6 x 19,6 mm Magnet part 65 x 15,1 x 16,1 mm Security grade: EN50131-2-6:2008; VdS Grade 2 Approvals EN-ST-000098, SBSC 9-211, FG MKT-1016/09, INCERT B-582-1003 a) - measured with spacers MC 400-3 and MC 400-4 (included in the set) MC 440-T Instruction Manual 4-MC440T-01 © 2022 Alarmtech Rev. MC440T_2238en Page 2 of 2

OPERATING PRINCIPLE

MC 440-T magnetic contact has two parts: the contact part with a reed switch and the magnet part. In its neutral position the reed switch remains closed under the force of the magnetic field. Opening the monitored object increases the distance between the reed switch and the magnet. This reduces the influence of the ma gnetic field on the reed switch until it opens and activates an alarm. Magnetic contacts should not be installed in the vicinity of strong magnetic fields.

INSTALLATION

Contact and magnet should be installed in parallel, corresponding to each other . Offset will reduce the working distances. Arrows on the contact and magnet inner housings must point to each other. The contact should be mounted on the stationary part of the monitored object (ex. door frame) and the magnet on the movable part (ex. door leaf). For sites where it is impossible to mount the contact directly, spacers and aluminium brackets are available. Spacers enable installation of the contact on ferromagnetic surfaces. Brackets can be used to mount the contact parts away from a ferromagnetic s urface or to solve problems with aligning the contact with the magnet. Contact and/or magnet should be screwed to the oval slots in the brackets and adjusted to a suitable position. Only non -ferromagnetic screws may be used for mounting the contact. After the installation, use an ohmmeter to check the electrical connections and test the operation of the magnetic contact. Warning: applying excessive force to the housing of the contact may damage the glass body of the reed switches inside. Warning: appropriate accessories must be used for

installation in ferromagnetic environment.

We reserve the right to changes without notice.