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

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