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55 Series Type E55 L24HT-R25HT Temperature Switch
Brand: United Electric Controls Ltd
The E55 Series provides rugged, dependable temperature control for many applications. Available in single or dual output versions, with either an epoxy coated enclosure (designed to meet NEMA Type 4X) or skeleton construction, the E55 combines flexibility with compact size.
It has been used in diverse applications such as food service appliances, oven control, and heat tracing.
Features- Single or Dual 15 A Switch Output
- Panel or Surface Mount
- External adjustment via reference dial
- Heat Tracing Models
- Skeleton or Enclosure construction
- Designed to meet NEMA Type 4X
- Optional External Manual Reset
- Compact size
- Copper or Stainless Steel Bulb & Capillary
- Adjustable Ranges:
- -90° to 343.3° C (-130° to 650° F)
1 - 12 of 16 Part Numbers
E55-L24HT
- Model - L24HT
- Lights - No Pilot Lights
- Factory Set Point - No Factory Set Point
- Tag - No Tag
E55-L24HT-M020
- Model - L24HT
- Lights - Pilot Lights
- Factory Set Point - No Factory Set Point
- Tag - No Tag
E55-L24HT-M020-M201
- Model - L24HT
- Lights - Pilot Lights
- Factory Set Point - One Switch
- Tag - No Tag
E55-L24HT-M020-M201-M446
- Model - L24HT
- Lights - Pilot Lights
- Factory Set Point - One Switch
- Tag - Stainless Steel ID Tag & Wire Attachment
E55-L24HT-M020-M446
- Model - L24HT
- Lights - Pilot Lights
- Factory Set Point - No Factory Set Point
- Tag - Stainless Steel ID Tag & Wire Attachment
E55-L24HT-M201
- Model - L24HT
- Lights - No Pilot Lights
- Factory Set Point - One Switch
- Tag - No Tag
E55-L24HT-M201-M446
- Model - L24HT
- Lights - No Pilot Lights
- Factory Set Point - One Switch
- Tag - Stainless Steel ID Tag & Wire Attachment
E55-L24HT-M446
- Model - L24HT
- Lights - No Pilot Lights
- Factory Set Point - No Factory Set Point
- Tag - Stainless Steel ID Tag & Wire Attachment
E55-R25HT
- Model - R25HT
- Lights - No Pilot Lights
- Factory Set Point - No Factory Set Point
- Tag - No Tag
E55-R25HT-M020
- Model - R25HT
- Lights - Pilot Lights
- Factory Set Point - No Factory Set Point
- Tag - No Tag
E55-R25HT-M020-M201
- Model - R25HT
- Lights - Pilot Lights
- Factory Set Point - One Switch
- Tag - No Tag
E55-R25HT-M020-M201-M446
- Model - R25HT
- Lights - Pilot Lights
- Factory Set Point - One Switch
- Tag - Stainless Steel ID Tag & Wire Attachment
1 - 12 of 16 Part Numbers
Specifications
Adjustment Type
- Knob
Ambient Temperature Range
- -40° to 71° C (-40° to 160° F), Set Point Typically Shifts less than 1 % of Range for a 28° C (50° F) Ambient Temperature Change
Applications
- Food Service Appliances
- Heat Tracing
- Oven Control
Approvals & Certifications
- CE
- CSA C22.2 No. 24, File # LR7814
- ISO 9001
- Low Voltage Directive (LVD) 2006/95/EC
- UL 873, File # E10667
- UR
Bulb Material
- Copper
- Stainless Steel
Capillary Length
- 10 feet (3 metres)
Deadband
- Temperature Deadband: Typically 1 % of Range Under Laboratory Conditions (21.11° C (70° F) Circulating Bath at Rate of -17.5° C (0.5° F) Per Minute Change)
Electrical Connectors
- 1/2” NPT Female
Electrical Contacts
- Gold Contacts, 1 A at 125 Vac Resistive
- Normally Closed
- Normally Open
Electrical Rating
- 20 A 125/250/480 Vac Resistive
- Close Deadband, 5 A at 125/250 Vac Resistive
- External Manual Reset, 15 A at 125/250/480 Vac Resistive
Enclosure, Body Details
- Skeleton, Open Frame Construction
Enclosure, Body Material
- Die Cast Aluminum
- Epoxy Powder-Coated with Stainless Steel
- Gasketed Adjustment Cover
Environmental Protection
- IP66
- NEMA 4X
Fill Material
- Temperature Fill: Non-Toxic Oil
Mounting
- Panel
- Surface
Name Plate, Tag Material
- Stainless Steel, Paper ID Tag & Wire Attachment
NPT Connection
- 1/2” NPT Female
- 3/4” NPT
Output Function
- Normally Closed
- Normally Open
Process Connection Material
- 304 Stainless Steel
- Brass
Repeatability
- Set Point Repeatability: ± 1 % of Adjustable Range
Set Point - Decreasing
- -90° to 343.3° C (-130° to 650° F)
Set Point - Increasing
- -90° to 343.3° C (-130° to 650° F)
Shock
- Set Point Repeats after 15 G, 10 millisecond Duration
Storage Temperature
- -54° to 71° C (-65° to 160° F)
Switch Type
- Dual Switch may be separated up to 100 % of Range
- One or Two SPDT
Temperature Range
- Maximum
Thermowell
- 316 Stainless Steel
- Brass
Vibration
- Set Point Repeats after 2.5 G, 5 to 500 Hz