EXHeat HEF 100, Installation, Operation, & Maintenance Instruction, Page: 5 / 27

3. Markings
Page 5
3. Markings
ATEX Markings: IECEx Markings:
Cert No. ITS19ATEX104973X Cert No. IECEx ITS 19.0024X
II 2 G
Ex eb IIC T4…T3 Gb Ex eb IIC T4…T3 Gb
**’db eb’ when ‘d’ type in-line thermostat is used, ‘eb mb when ‘m’ type in-line thermostat is
used – See relevant thermostat IOM/Certs, markings and standards applied**
Certified to (Heater): Certified to (Heater):
EN 60079-0:2018 IEC 60079-0:2018 Ed 7
EN 60079-1:2014 IEC 60079-1:2014-06 Ed 7
Operating Ambient Temperature
-55
°C ≤ Tamb ≤ +
80°C when QTVR cable is used
-55
°C ≤ Tamb ≤ +
80°C when HTSX cable is used
-5
0°C ≤ Tamb ≤ +
80°C when either cable is used with an in-line thermostat (d or m type).
CEC & NEC Markings:
Cert No. 70117806 for division label and CSA17.70117806U for zone label
(CAN-CEC / US-NEC)
Class I Division 2. Groups A, B, C & D. T4…T3
US (NEC): CAN (CEC):
Class I Zone 1 AEx e IIC T4…T3 Gb Ex e IIC T4…T3 Gb
Operating Ambient Temperature
-55
°C ≤ Tamb ≤ +
80°C
CSA Classes C2848-01, C2848-81
***Optional in-line thermostats may be connected with the HEF (Known as HEF-T), please
refer to the relevant thermostat IOM for the thermostat details***