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SO Models: Unregulated Steel Sheath With Steel 1" NPT Screw Plug Immersion Elements

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Therm Coil SO Models: Unregulated Steel Sheath Elements With 1" NPT Steel Screw Plug:

Series General Information:

  • Steel Sheath with Steel Screw Plug (Nickel Brazed or Welded): Our SO models with 20-24 watt density (W/IN.²) are for use in lightweight oils..
  • Unregulated (No Thermostat): If you need this type of element but with temperature control, please see our ESO Models.
  • Includes Thermowell: accommodates up to 3/8" DIA. sensing bulb.
  • NEMA 1, General Purpose Enclosure: the default enclosure type. If you require a Weather-Resistant and/or Explosion-Resistant Enclosures (Also Dust & Weather-Resistant), please contact us at 1-724-872-5007 or rheinhold@thermcoil.com.
  • Screw plug immersion heaters must be fully covered by your liquid to prevent heater failure. (Other medium applications are possible, but require factory consultation.)
  • All 240V models have the option to be operated at 208 VAC with a 25% reduction in wattage rating.

SO Specific Model Details

Therm Coil Model: SO-211

  • (1) IN-STOCK.  CALL FOR PRICE & TO ORDER!
  • Rating: 250W @ 120V
  • Immersion Length (C): 6-1/4"
  • Thermowell Immersion Length (B): 4-3/4"
  • Watt Density: 23 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-001

Therm Coil Model: SO-221

  • CLOSEOUT MODEL: (1) IN-STOCK.  CALL FOR PRICE & TO ORDER!
  • Rating: 250W @ 208V
  • Immersion Length (C): 6-1/8"
  • Thermowell Immersion Length (B): 4-3/4"
  • Watt Density: 21 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-002

Therm Coil Model: SO-241

  • CLOSEOUT MODEL: (1) IN-STOCK.  CALL FOR PRICE & TO ORDER!
  • Rating: 250W @ 240V (188W @ 208V)
  • Immersion Length (C): 6"
  • Thermowell Immersion Length (B): 4-3/4"
  • Watt Density: 23 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-003

Therm Coil Model: SO-511

  • CLOSEOUT MODEL: (1) IN-STOCK.  CALL FOR PRICE & TO ORDER!
  • Rating: 500W @ 120V
  • Immersion Length (C): 8-1/2"
  • Thermowell Immersion Length (B): 4-3/4"
  • Watt Density: 23 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-004

Therm Coil Model: SO-541

  • Rating: 500W @ 240V (375W @ 208V)
  • Immersion Length (C): 12"
  • Thermowell Immersion Length (B): 4-3/4"
  • Watt Density: 23 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-006

Therm Coil Model: SO-711

  • CLOSEOUT MODEL: (1) IN-STOCK.  CALL FOR PRICE & TO ORDER!
  • Rating: 750W @ 120V
  • Immersion Length (C): 11-1/4"
  • Thermowell Immersion Length (B): 4-3/4"
  • Watt Density: 23 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-007

Therm Coil Model: SO-1011

  • CLOSEOUT MODEL: (1) IN-STOCK.  CALL FOR PRICE & TO ORDER!
  • Rating: 1,000W @ 120V
  • Immersion Length (C): 14"
  • Thermowell Immersion Length (B): 4-3/4"
  • Watt Density: 24 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-010

Therm Coil Model: SO-1041

  • Rating: 1,000W @ 240V (750W @ 208V)
  • Immersion Length (C): 17-1/2"
  • Thermowell Immersion Length (B): 7-3/4"
  • Watt Density: 20 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-012

Therm Coil Model: SO-1511

  • Rating: 1,500W @ 120V
  • Immersion Length (C): 23-3/4"
  • Thermowell Immersion Length (B): 7-3/4"
  • Watt Density: 21 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-013

Therm Coil Model: SO-1541

  • Rating: 1,500W @ 240V (1,125W @ 208V)
  • Immersion Length (C): 23-3/4"
  • Thermowell Immersion Length (B): 7-3/4"
  • Watt Density: 21 W/IN.² NOM.
  • Therm Coil Drawing No.: 357D-1202-016

Series Technical Specifications

  • Element Sheath Material: Steel
  • Quantity Of Elements: 1
  • Phasing: Single-Phase
  • Immersion Length: (C Dim.)
  • Terminal Connections: (2x) 7" Lead Wires
  • Screw Plug Size: 1" NPT
  • Screw Plug Material: Steel
  • Enclosure Type: NEMA 1 General Purpose
  • Thermowell Immersed Length: (B Dim.)
  • Thermowell Accommodates Sensing Bulb Size: .375" DIA.
  • Temperature Control Type: None
  • Temperature Control Range: N/A

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