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ATJ-EN 

Features
User selectable modes
Incorporates Fixed Temperature and Rate Of Rise Heat elements
Twin LEDs allow 360 viewing – green when polling, turn red in fire
Pulsing/non-pulsing controlled from panel*
Electronically addressed
LPCB & VdS approved to Classes A1, B & C
SIL Level 2 approved variants available
Available in white
Description
Model ATJ-EN is a Multi-Heat Sensor, which is fully compatible with Hochiki’s ESP Analogue Addressable Protocol.
The ATJ-EN incorporates a Variable Temperature heat element and a Rate Of Rise heat element, both of which are controlled from the Control Panel, allowing either thermal element or both elements simultaneously to be active in making the fire decision. The sensor polling LEDs can also be controlled via the Control Panel (pulsing/non-pulsing)*.
Specification
Ordering Code
ATJ-EN
ATJ-EN(WHT)
Operating Voltage
17 – 41 V d.c.
Low Power Mode (typ)
110 A
Quiescent Current (typ)
350 A
Alarm Current (controlled by CIE)
9.1 mA (excluding remote indicator)
Transmission Method
Digital Communications Using ESP
Operating Temperature Range
-10 °C to +50 °C
Operating Humidity
95% RH – Non Condensing (at 40C)
Storage Temperature Range
-30 °C to +60 °C
Storage Humidity
<80% RH at 70 °C
Colour / Case Material
Ivory or White / Polycarbonate
Weight (g)
90
Diameter (mm) / Height (mm)
100 / 45
Compatible Bases
YBN-R/3, YBO-R/SCI, YBO-BS, YBO-BSB,
YBN-R/3(SCI)
Base Fixing Centres (mm)
48 ~ 74
Approvals
LPCB & VdS approved to Classes A1, B & C
*Control Panel compatibility required

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