Steel Immersion Heater 2.5" NPT Medium Weight Oil Thermostat
Medium Weight Oil Immersion Heater with Integral Thermostat—2 1/2" NPT Steel Fitting
Volume discounts available
Volume Discount Schedule
Quantity | Price each |
---|---|
1-4 | $1,526.00 |
5-9 | $1,449.70 |
10-24 | $1,419.18 |
25-49 | $1,358.14 |
50-99 | $1,327.62 |
100+ | $1,297.10 |
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- 3 to 9kW
- Rugged 3 Element Steel Construction
- Low Watt Density, 15 W/in2
- Built-in Thermostat, Three Temperature Ranges Available
- 240 and 480 V, 3 Phase
ARMTO-309T2/240V/3P Model Options
View all modelsEdit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.
*Highlighted options are not compatible. Please select a different combination.
Heating Element Length
Power
Supply Voltage
Enclosure Type
Maximum Operating Temperature
Minimum Operating Temperature
Form Factor
Connection Type
Power Density
Supply Voltage Type
Heated Medium
Sheath Material
Features
Please Note: The integral thermostat functions as a temperature control only. This is not a fail safe device. An approved pressure and/or temperature control should be used with these heaters to assure safe operation. See the Temperature Section for our selection of control devices.
CAUTION AND WARNING!
Fire and electrical shock may result if products are used improperly or installed or used by non-qualified personnel. See inside back cover for additional warning.

/* Designate voltage, ie., insert 208 for 208 Vac, 240 for 240 Vac, or 480 for 480 Vac. Model numbers containing 240 V are only available in that voltage.
†Caution: Explosion resistant type E2 construction refers to heater design features which provide explosion resisting containment of electrical wiring according to National Electric Code. Abnormal application or use of heaters which in excessive temperatures can create hazardous conditions which can lead to fire Consult Section Z for data on allowable watt densities for more viscous materials.
1 Heaters with General Purpose Enclosures are UL Listed with T1 or T2 Temps and CSA Certified with T1, T2 or T3 Temps.
2 Heaters with Moisture Resistant/Explosion Resistant Enclosures are CSA NRTL/C Certified with T1, T2 or T3 Temps.
CAUTION AND WARNING!
Fire and electrical shock may result if products are used improperly or installed or used by non-qualified personnel. See inside back cover for additional warning.

kW | W/in2 | No. Htg. Elem. | Dim.B in(cm) | T3 Temp.Range (200-550°F) Model No. | T2 Temp. Range (60-250°F) Model No. | T1 Temp.Range (0-100°F) Model No. | Wt. Ib(kg) | ||
ARMTO-3 with E1 General Purpose Enclosure 1 | |||||||||
3 | 15 | 3 | 24 1/2 (62) | ARMTO-303/* | ARMTO-303T2/* | ARMTO-303T1/* | 11 (5) | ||
4 | 15 | 3 | 32 3/8 (82) | ARMTO-304/* | ARMTO-304T2/* | ARMTO-304T1/* | 12 (5) | ||
5 | 15 | 3 | 39 7/8 (101) | ARMTO-305/240 | ARMTO-305T2/240 | ARMTO-305T1/240 | 13 (6) | ||
6 | 15 | 3 | 47 3/8 (121) | ARMTO-306/* | ARMTO-306T2/* | ARMTO-306T1/* | 14 (6) | ||
7.5 | 15 | 3 | 57(145) | ARMTO-307/240 | ARMTO-307T2/240 | ARMTO-307T1/240 | 15 (6) | ||
9 | 15 | 3 | 67 3/8 (171) | ARMTO-309/240 | ARMTO-309T2/240 | ARMTO-309T1/240 | 16 (7) | ||
ARMTO-3 Series with Moisture Resistant/Explosion Resistant Enclosure2† | |||||||||
3 | 15 | 3 | 24 1/2 (62) | ARMTO-303E2/* | ARMTO-303E2T2/* | ARMTO-303E2T1/* | 16 (7) | ||
4 | 15 | 3 | 32 3/8 (82) | ARMTO-304E2/* | ARMTO-3046E2T2/* | ARMTO-304E2T1/* | 17 (8) | ||
5 | 15 | 3 | 39 7/8 (101) | ARMTO-305E2/240 | ARMTO-305E2T2/240 | ARMTO-305E2T1/240 | 18 (8) | ||
6 | 15 | 3 | 47 3/8 (121) | ARMTO-306E2/* | ARMTO-306E2T2/* | ARMTO-306E2T1/* | 19 (9) | ||
7.5 | 15 | 3 | 57(145) | ARMTO-307E2/240 | ARMTO-307E2T2/240 | ARMTO-307E2T1/240 | 20 (9) | ||
9 | 15 | 3 | 67 3/8 (171) | ARMTO-309E2/240 | ARMTO-309E2T2/240 | ARMTO-309E2T1/240 | 21(10) |
†Caution: Explosion resistant type E2 construction refers to heater design features which provide explosion resisting containment of electrical wiring according to National Electric Code. Abnormal application or use of heaters which in excessive temperatures can create hazardous conditions which can lead to fire Consult Section Z for data on allowable watt densities for more viscous materials.
1 Heaters with General Purpose Enclosures are UL Listed with T1 or T2 Temps and CSA Certified with T1, T2 or T3 Temps.
2 Heaters with Moisture Resistant/Explosion Resistant Enclosures are CSA NRTL/C Certified with T1, T2 or T3 Temps.


