M400K

The Honeywell/System Sensor M400K is a conventional manual call point designed for immediate fire alarm activation, featuring a breakable glass element and integrated LED status indicator for visual confirmation.
It connects via 2-wire conventional fire alarm circuits (15-30VDC) and mounts using the PS031W surface back box for indoor applications, with simple glass-break/reset operation via test key.
Key Specifications
Feature
Details
Type
Conventional breakglass manual call point, 2-wire 
Voltage
15-30 VDC operating range 
Current
Standby <200 µA, Alarm 5-30 mA (LED on) 
LED Indicator
Red LED blinks/polls, steady in alarm 
Mounting
Surface (PS031W back box) or flush 76×76mm box 
Temperature
0°C to 50°C operating range ​
Glass Element
Resettable/replaceable, test key operation 
Terminals
SEMS screws, remote LED support ​