Model: 55000-440APO
 
Supply voltage 
14 - 22 V
Quiescent current 
300 μA
Power-up surge current 
1 mA
Duration of power-up surge current
0.3 seconds
Max power-up time
4 seconds
Analogue value at 25ºC
25 + 5 counts
Alarm indicator 
Red light emitting diode (LED)
Alarm LED current 
2 mA
Remote LED current 
1 mA (internally limited)
Storage temperature 
-30°C to +80°C
Operating temperature 
-20ºC to +40ºC (T5)
-20°C to + 60°C (T4)
Guaranteed temperature range
-20°C to + 60°C (no condensation or icing)
Humidity 
0% to 95% RH (no condensation or icing)
Effect of atmospheric pressure
Unaffected
Effect of wind speed 
Unaffected by wind
Vibration, impact & shock 
To EN 54-5
IP Rating 
designed to IP53
Standards & approvals 
EN54, MED, LR, BV, ABS, CCS, KRS, VdS,
CCCf, BOSEC, VNIIPO, SBSC, EAC, PESO,
ATEX and IECEX
BASEEFA Certificate No. 
BAS02ATEX1289X
IECEx Certificate No.
IECExBAS12.0091X
Classification (max ambient) 
Ex ia IIC T4 GA (≤ +60ºC)
Ex ia IIC T5 GA (≤ +45ºC)
Dimensions 
100 mm diameter x 42 mm height
(50 mm height with mounting base)
Weight 
105g
157g with base
Materials 
Housing: White flame-retardant polycarbonate
Terminals: Nickel plated stainless steel