Alarmtech MC 255 Instruction Manual

MC 255 Instruction Manual
Detectors
Instruction Manual

DESCRIPTION

MC 255 is a versatile magnetic contact used in both alarm
and security access control systems for protection of doors,
gates and windows against unauthorised opening. The
magnetic contact is designed to be mounted in places with
limited space. The construction of the contact enables
rotation during mounting, thus protecting the cable from
mechanical stress. A wide range of accessories enables the
contact to be installed on a variety of surfaces, including
ferromagnetic materials.
MC 255 is certified according to EN 50131-2-6:2008.

MOUNTING INSTRUCTIONS


Contact and magnet should be installed axially,
corresponding to each other.

Self-cutting and self-locking thread enables direct
Installation in ф 10 mm holes in wood and plastic.

Appropriate accessory must be used for installation in
ferromagnetic environment.

TECHNICAL DATA

Working environment
Make distance
Break distance
Contact type
Switching voltage max.
Switching current max.
Contact rating max.
Estimated life expectancy
Cable
Environmental class (EN50130-5:2011)
Operating temperature range
Operating humidity range
Housing material
Dimensions:
Contact part
Magnet part
Security grade (EN50131-2-6:2008)
Approvals
© 2014 Alarmtech

CIRCUIT DIAGRAM

DISTANCE DIAGRAM - WOOD

-30 -20
Make distance
Wood
typ. 20 mm +/– 40 %
typ. 22 mm +/– 40 %
form A, SPST
48 V DC/AC
500 mA DC/peak AC
10 W
>20 million switching operations at 10 V/4 mA
2 m, ф 3,2 mm, 4x0,14 mm
IIIA
-40°C to +55°C
max. 95% r. h.
aluminium alloy
ф 11 x 22 mm
ф 11 x 22 mm
2
ITR 2/2014
Rev. MC255_1427en
Magnetic Contact
Recessed mounting
25
y [mm]
20
15
10
5
0
-10 0 10 20
x [mm]
Break distance
Steel
see distance table
see distance table
2
4-MC255-01
MC 255
30
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