Medium Weight Oil Immersion Heater 3 Element Design

MTO-3 Series

Medium Weight Oil Immersion Heater  | MTO-3 Series

Medium Weight Oil Immersion Heater

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  • 240 and 480V, 3 Phase
  • 3 to 9kW
  • Rugged Steel Sheath
  • Low Watt Density for Heating Medium Weight Oils
  • 2 1/2" NPT Steel Fitting
  • General Purpose NEMA-1 Enclosure or Moisture Tight/Explosion Resistant Enclosure*
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kW Volts Phase W/in2 No. Htg.
Dim. B
in (cm)
E1 General Purpose Enclosure1 E2 Moisture Res/Explos. Res.†2
Model No. Wt.
Ib (kg)
Model No. Wt.
Ib (kg)
3240315324 3/8 (62)MTO-303/2406 (7)MTO-303E2/2409 (3)
3480315324 3/8 (62)MTO-303/4806 (3)MTO-303E2/4809 (4)
4240315332 1/4 (82)MTO-304/2409 (3)MTO-304E2/24012 (5)
4480315332 1/4 (82)MTO-304/4809 (3)MTO-304E2/48012 (5)
5240315339 3/4 (101)MTO-305/24010 (4)MTO-305E2/24013 (5)
6240315347 1/4 (120)MTO-306/24011 (4)MTO-306E2/24014 (5)
6480315347 1/4 (120)MTO-306/48011 (3)MTO-306E2/48014 (5)
7.5240315357 (145)MTO-307/24014 (4)MTO-307E2/24017 (5)
9240315367 1/4 (171)MTO-309/24015 (4)MTO-309E2/24018 (5)
†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 and CSA Certified.
2 Heaters with Moisture Resistant/Explosion Resistant Enclosures are CSA NRTL/C Certified.
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