250318 / MCP60300110
2021-01-26·BA00·III·en·02
Mounting and Installation
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Flameproof Manual Call Points
Series MCP/BG
7.3.6 Standard Devices with LED Status Light
Single-pole MCP, switch normally closed in standby / normally open in alarm
• Ensure that the connector wires from switch and LED are correctly installed as per the
schematic (see the following figure).
• Remove LK1 for LED activation in alarm or remove LK2 for LED activation in standby.
• Add a jumper/connection between terminals 1 and 2. Terminal 1 is the one closest to
LK3. The jumper/connection is depicted in the figure.
There is an 820 ohm resistor which is in line with the LED. When activated,
the LED together with the resistor will draw a current. On a 24 V DC system
this current is approximately 30 mA.
17567E00
17655E00
C
1
1a
2
3
4
Connector terminal
Red wire for LED
Black wire for LED
Blue wire for switch
Yellow wire for switch
Red wire for switch
17654E00
1
2
3
Cable connection (from left)
L / +
N / -
1a
2a
3a
4a
1
2
3
4
C
LK2
LK1
LK3
N/O
N/C
Common
1
2
3