Hazardous Locations

American Unity, American Pride, American Strength.

Temperature Control For Hazardous Locations

Nelson offers a variety of thermostats for temperature control for hazardous locations. Please click on the images below for summary information on each type. For Specific selection and installation instructions visit our Technical Library.

TA7140
Ambient sensing mechanical control. Adjustable -9°C to 60°C (15°F to 140°F), NEMA 4/7/9.

Approvals:
UL Class I & II,
      Groups B, C, D, E, F, G - E53121
FM Class I & II,
      Groups B, C, D, E, F, G - 1ZIA0.AE
      Class I, Zone 1, AEx d IIB+H₂CSA Class I & II,
       Groups B, C, D, E, F, G - LR701950
       CIII, Encl. Type 4
       Class I, Zone 1, Ex d IIB+ H₂LCIE -     II 2 G EEx d IIC T6- 2 ATEX 6026

Approvals:
UL   Class I & II,
       Groups B, C, D, E, F, G -   E53121
FM   Class I & II,
       Groups B, C, D, E, F, G - 1ZIA0.AE
       Class I, Zone 1, AEx d IIB+H₂CSA Class I & II,
       Groups B, C, D, E, F, G - LR701950
     CIII, Encl. Type 4
       Class I, Zone 1, Ex d IIB+ H₂LCIE -     II 2 G EEx d IIC T6 - 2 ATEX 6026

TH7325
Pipe sensing mechanical control. Adjustable -4°C to 163°C (25°F to 325°F) NEMA 4/7/9.

Approvals:
UL   Class I & II,
       Groups B, C, D, E, F, G -   E53121
FM   Class I & II,
       Groups B, C, D, E, F, G - 1ZIA0.AE
       Class I, Zone 1, AEx d IIB+H₂CSA Class I & II,
       Groups B, C, D, E, F, G - LR701950
     CIII, Encl. Type 4
       Class I, Zone 1, Ex d IIB+ H₂

LCIE - II 2 G EEx d IIC T6 - 2 ATEX 6026

TH7325-2
Pipe sensing mechanical control. Adjustable -4°C to 163°C (25°F to 325°F) NEMA 4/7/9.


Approvals: FM Class I; Div. 1; Groups B,C,D Class II; Div. 1; Groups E,F,G Class l; Zone 1; AEx d IIB+H₂ CSA Class I; Div. 1; Groups B,C,D Class II; Div. 1; Groups E,F,G Class I; Zone 1; Ex d IIB+H₂	TE760 Pipe sensing, electronic, thermocouple control. Adjustable 0°C to 316°C (32°F to 1000°F), NEMA 4/7/9. Maximum probe exposure temperature of 593°C (1100°F) Used for high temperature applications, steam freeze protection and remote probe locations

HC750
Contactor, 50 amp,600 volts, 3 pole. NEMA 4/7/9. Used for switching large electrical loads for groups of heaters or long circuits.

Approvals:
FM  Class I; Div. 1; Groups B,C,D
       Class II; Div. 1; Groups E,F,G
       Class l; Zone 1; AEx d IIB+H₂CSA Class I; Div. 1; Groups B,C,D
      Class II; Div. 1; Groups E,F,G
       Class I; Zone 1; Ex d IIB+H₂