Hazloc Heaters B121-13272 Hazardous Area Air Sensing Thermostat – cULus, ATEX & IECEx

Hazloc Heaters B121-13272 Hazardous Area Air Sensing Thermostat
Hazloc B121-13272 is a hazardous area air sensing thermostat suitable for heating and cooling applications such as hazardous area heaters and exhaust fans with a type 4x, 7 & 9, IP66 rating.

cULus, ATEX & IECEx Hazardous Area Thermostat
Hazloc Heaters B121-13272
Hazardous Area Air Sensing Thermostat Features
- One SPDT switch
- Epoxy powder coated die cast aluminium enclosure certified to
- Type 4x, 7 & 9; IP66
- Casting tapped for 3/4” conduit
- External adjustment with reference dial
- 14.3mm x 68.3 mm (9/16″ x 2-11/16″) long stainless steel stem
- Screw terminal connections
Hazloc Heaters B121-13272
Specification
Setpoint temperature range | -9.4 to 60°C/15 to 140°F |
Temperature deadband | typically 2% of range under laboratory conditions. |
Temperature indication | accuracy is ±1% of adjustable range |
Electrical rating | 22 Amps/480VAC |
Product size | 254mm H x 129.9mm W x 132.0mm D 10.0″H x 5-1/8″W x 5-3/16″D |
Weight | 1.79 kg (3.95 lbs) net |
Hazardous Area Approvals

cULus, ATEX & IECEx Approvals
cULus:
- Class I Group B, C & D
- Class II Group E. F & G; Class III
- Class I, Zone I, Group IIB + H2 T6
CE 0539 ATEX:
- II 2 G Ex d IIC T6 Gb
- II 2 D Ex tb IIIC
- T85°C Db IP66
- DEMKO 09 ATEX 0815573X Rev.2
- ‐40°C ≤Tamb. ≤ +75°C
IECEx:
- UL 03.0001X
- Ex d IIC T6 Gb
- Ex tb IIIC T85°C Db IP66
- Tamb= ‐40°C to +75°C

Hazloc Heaters B121-13272 – Dimensions
Hazloc heaters | HEATING APPLICATIONS
Hazloc Heaters are global suppliers and manufacturers of industrial and explosion-proof heaters and thermostats for hazardous areas and severe duty locations – this includes industrial heating products for non-hazardous and severe-duty applications. Explosion proof and hazardous area certifications include North American (NEC & CE), International (CENELEC & IEC), European (ATEX) and Russian EAEU (EAC EX).

Applications : Mud Tank Building, Boiler Packages, Service Rigs, Drilling Rigs, Paint Spray Booths, Offshore Cabins & Containers.