INSTRUCTION MANUAL
STExB2LD2
Flameproof LED Beacons
For use in Flammable Gas and Dust Atmospheres
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D199-00-401-IS
Issue 4
04-01-21
Sheet 1 of 6
STExB2LD2
1) Product Table
Standard
Model
Nom. Voltage
Voltage Range
Nom. Operating
Current*
Max Current
ATEX /
IECEx /
NEC /
CEC
GNExB2LD2DC024
24Vdc
18-54Vdc
1
18-30Vdc
2
230mA
500mA
GNExB2LD2AC115
115Vac
110-120Vac 50/60Hz
95mA
180mA
GNExB2LD2AC230
230Vac
220-240Vac 50/60Hz
50mA
100mA
*Rate at 1Hz
1
ATEX / IECEx Conformity
2
NEC / CEC Conformity
The table shows the input current taken by the various beacons.
A supply voltage variation of +/-10% outside the voltage range is permissible.
Nominal current at nominal voltage and 1Hz flash rate.
Max. rated current at worst case supply voltage and flash rate.
Table 1: Electrical Ratings
Ensure the system power supply is capable of providing the maximum current required for all beacons. Review associated cable size,
length and quantity of beacons on each circuit.
2)
Warnings
•
POTENTIAL ELECTROSTATIC CHARGING HAZARD.
•
DO NOT OPEN WHEN AN EXPLOSIVE ATMOSPHERE IS
PRESENT.
•
ALL ENTRIES M20 X 1.5MM.
•
USE SUITABLE RATED CABLES AND CABLE GLANDS
IF TEMPERATURE EXCEEDS AS PER STANDARDS
INDICATIONS BELOW.
FOR ATEX / IECEx STANDARDS:
70ºC AT ENTRY OR 80ºC AT BRANCHING POINT.
FOR NEC / CEC STANDARDS:
60ºC AT ENTRY OR 60ºC AT BRANCHING POINT.
3) Rating & Marking Information
All units have a rating label, which carries the following
important information:
•
Unit Model.
•
Voltage Range
•
Nominal Voltage
•
Max. Current
See Table 1 for electrical ratings of each Unit Model.