Last Updated:

November 27, 2018 (Replaces: November 7, 2014)

Class I, Groups B, C and D; Class II, Groups E, F and G, Class I Zone 1 Ex d IIB, AEx d IIB:

Immersion heaters, screw plug type, with thermostat, with or without thermocouple, Series MT, EMT, and TM-1 without thermostat, with or without thermocouple, single or three phase.

Series may include suffix C32, C33, C34, C35, E2, E3, I, II, IS, M, O, OIS, OS, OSS, S, SS, T, V, W, WI, WS, WSS, XX. Series may include suffix A, 3 or 3A. ARMT and AREMT Series may include suffix T1, T2, T3, T4, T5 or T8. ARTM Series may include suffix TL or TH.

Note:
Enclosures built to the specifications of Figures 32-38, size range from 3? to 16? flange (flat lid) are suitable for Class I, Groups B, C and D; Class II, Groups E, F and G, Class I, Zone 1 Ex d IIB+H2, AEx d IIB+H2. Flanges 18? and higher are suitable only for Gas Group IIB.

 

Immersion heaters, screw plug type, with or without thermostat, with or without thermocouple or RTD, single or three phase. May include suffix A, S, C, T1, T2, T2R, T3, M6, M7, X.

K

Note:
Enclosures built to the specifications of Figures 32-38, size range from 3? to 16? flange (flat lid) are suitable for Class I, Groups B, C and D; Class II, Groups E, F and G, Class I, Zone 1 Ex d IIB+H2, AEx d IIB+H2. Flanges 18? and higher are suitable only for Gas Group IIB.

Immersion heaters, tank type, with or without thermostat, single or three phase. May include suffix A, C, ER, I, O, S, T1, T2, T3, V, W, XX.

Note:
Enclosures built to the specifications of Figures 32-38, size range from 3? to 16? flange (flat lid) are suitable for Class I, Groups B, C and D; Class II, Groups E, F and G, Class I, Zone 1 Ex d IIB+H2, AEx d IIB+H2. Flanges 18? and higher are suitable only for Gas Group IIB.

 

Immersion heaters, flange type, with or without thermostat, with or without thermocouple, single or three phase. May include suffix A, B, C32, C33, C34, C35, C42, C43, C44, C45, E2, E3, F, F1, H, I, II, IS, L, M, O, R1, S, SS, SSS, T, T1, T2, T3, V, W, XX.

Note:
Enclosures built to the specifications of Figures 32-38, size range from 3? to 16? flange (flat lid) are suitable for Class I, Groups B, C and D; Class II, Groups E, F and G, Class I, Zone 1 Ex d IIB+H2, AEx d IIB+H2. Flanges 18? and higher are suitable only for Gas Group IIB.

Immersion heaters, flange type, with or without thermostat, with or without thermocouple or RTD. May include suffix A, S, C, T1, T2, T2R, T3, M6, M7, X.

Notes:

1. The Certification is conditional on the provision of an approved liquid level and/or temperature limiting control and/or pressure control which will de-energize the heater in the event of system malfunctions.
2. The overall hazardous location designation is governed by the device with the lowest hazardous location rating.
3. The max surface temperature of exposed element or enclosure housing must not exceed the following:
   Class I, Groups B, C, and D: T1 0 T6
   Class II, Groups E and F: 200� C (T3)
   Class II, Groups G: 165�C (T3B)
   Class I, Zone I Ex d IIB & AEx d IIB: T1 - T6
4. Enclosures built to the specifications of Figures 53-64 are suitable for Class I, Groups B, C and D; Class II, Groups E, F and G, Class I Zone 1 Ex d IIB+H2, AEx d IIB+H2.

Circulation heaters, with or without thermostat, with or without thermocouple, NWH Series may include suffix A, B, F, I, II, IS, M , O, OIS, R, S, SS, SSS, SSMT, T. GCH Series may include suffix A, B, IS, S, SS, SSS. NWH and GCH Series may include suffix C22, C23, C32, C33, C34, C35, C42, C43, C44, C45, E2, E3, V, W, XX, T1, T2, T3, T10, T12 and T13.

Ogden

Notes:

1. The Certification is conditional on the provision of an approved liquid level and/or temperature limiting control and/or pressure control which will de-energize the heater in the event of system malfunctions.
2. The overall hazardous location designation is governed by the device with the lowest hazardous location rating.
3. The max surface temperature of exposed element or enclosure housing must not exceed the following:
   Class I, Groups B, C, and D: T1 0 T6
   Class II, Groups E and F: 200� C (T3)
   Class II, Groups G: 165�C (T3B)
   Class I, Zone I Ex d IIB & AEx d IIB: T1 - T6
4. Enclosures built to the specifications of Figures 53-64 are suitable for Class I, Groups B, C and D; Class II, Groups E, F and G, Class I Zone 1 Ex d IIB+H2, AEx d IIB+H2.

 

Circulation heaters, with or without thermostat, with or without thermocouple or RTD, may include suffix A, S, C, M6, M7, X and prefix A.

Notes:

1. The Certification is conditional on the provision of an approved liquid level and/or temperature limiting control and/or pressure control which will de-energize the heater in the event of system malfunctions.
2. The overall hazardous location designation is governed by the device with the lowest hazardous location rating.
3. The max surface temperature of exposed element or enclosure housing must not exceed the following:
   Class I, Groups B, C, and D: T1 0 T6
   Class II, Groups E and F: 200� C (T3)
   Class II, Groups G: 165�C (T3B)
   Class I, Zone I Ex d IIB & AEx d IIB: T1 - T6
4. Enclosures built to the specifications of Figures 53-64 are suitable for Class I, Groups B, C and D; Class II, Groups E, F and G, Class I Zone 1 Ex d IIB+H2, AEx d IIB+H2.

 

Circulation heaters, with or without thermostat, with or without thermocouple, may include suffixes, E2, XX.

Notes:

1. The Certification is conditional on the provision of an approved liquid level and/or temperature limiting control and/or pressure control which will de-energize the heater in the event of system malfunctions.
2. The overall hazardous location designation is governed by the device with the lowest hazardous location rating.
3. The max surface temperature of exposed element or enclosure housing must not exceed the following:
   Class I, Groups B, C, and D: T1 0 T6
   Class II, Groups E and F: 200� C (T3)
   Class II, Groups G: 165�C (T3B)
   Class I, Zone I Ex d IIB & AEx d IIB: T1 - T6
4. Enclosures built to the specifications of Figures 53-64 are suitable for Class I, Groups B, C and D; Class II, Groups E, F and G, Class I Zone 1 Ex d IIB+H2, AEx d IIB+H2.

 

Flanged type immersion heaters with or without thermostat, with or without thermocouple. STFX may include suffix I, S, X, E2 and XX.

Notes:

1. The Certification is conditional on the provision of an approved liquid level and/or temperature limiting control and/or pressure control which will de-energize the heater in the event of system malfunctions.
2. The overall hazardous location designation is governed by the device with the lowest hazardous location rating.
3. The max surface temperature of exposed element or enclosure housing must not exceed the following:
   Class I, Groups B, C, and D: T1 0 T6
   Class II, Groups E and F: 200� C (T3)
   Class II, Groups G: 165�C (T3B)
   Class I, Zone I Ex d IIB & AEx d IIB: T1 - T6
4. Enclosures built to the specifications of Figures 53-64 are suitable for Class I, Groups B, C and D; Class II, Groups E, F and G, Class I Zone 1 Ex d IIB+H2, AEx d IIB+H2.

 

LTFX Large Tank Flange Immersion Heater

Note:

Cat. No. Nomenclature:

LTFX         3      3       25      90      E2     XX                - optional -     48      3     90

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