ESO Models: Regulated Steel Sheath With Steel 1" NPT Screw Plug Immersion Elements

Therm Coil ESO Models: Regulated Steel Sheath Elements With 1" NPT Steel Screw Plug:

Series General Information:

• Steel Sheath with Steel Screw Plug (Nickel Brazed or Welded): Our ESO models with 20-24 watt density (W/IN.²) are for use in lightweight oils..
• Regulated With 60°-250°F Thermostat Control: This is the default thermostat temperature range. Contact us if you need an alternate temperature range.
• 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.

ESO Specific Model Details

Therm Coil Model: ESO-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.: 357B-1004-001
  

Therm Coil Model: ESO-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.: 357B-1004-005
  

Therm Coil Model: ESO-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.: 357B-1004-009
  
  

Therm Coil Model: ESO-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.: 357B-1004-002
  

Therm Coil Model: ESO-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.: 357B-1004-010
  

Therm Coil Model: ESO-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.: 357B-1004-003
  
  

Therm Coil Model: ESO-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.: 357B-1004-004
  

Therm Coil Model: ESO-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.: 357B-1004-012
  

Therm Coil Model: ESO-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.: 357B-1004-013
  

Therm Coil Model: ESO-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.: 357B-1004-015
  

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: Adjustable SPST Thermostat
• Temperature Control Range: 60°-250°F