Alarmtech MC 740-E-M14 Instruction Manual

MC 740-E-M14 Instruction Manual
Detectors
Instruction Manual
DESCRIPTION
MC 740-E-M14 is a surface mounted magnetic contact used
in both alarm and security access control systems for
protection of doors and windows against unauthorised
opening. The magnetic contact is designed to be mounted in
places with limited space. The magnet part is easy to mount
with supplied rivet or screw.
TECHNICAL DATA
Working environment
Make distance
Break distance
Contact type
Switching voltage max.
Switching current max.
Contact rating max.
Cable
Operating temperature range
Operating humidity
Housing material
Dimensions:
Contact part
Magnet part
© 2021 Alarmtech
CIRCUIT DIAGRAM
OPERATING PRINCIPLE
MC 740-E-M14 magnetic contact has two parts: the contact
part with a reed switch and the ring 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 magnetic 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.
Wood
typ. 25 mm
typ. 28 mm
form A, SPST
48 V DC/AC
500 mA DC/peak AC
10 W
ф 3,4 mm, 4x0,182 mm
-40°C to +70°C
max. 95% RH
plastic ABS
60 x 5 x 13,5 mm
Ф14 x 3,5 mm
Rev. MC740-E-M14_2121en
4-MC740-E-M14-01
Magnetic Contact
Surface mounting
MC 740-E-M14
Steel
not recommended
not recommended
2
Page 1 of 2