United Electric Temperature Switch, 55 Series Type E55 Models E20BC to L24HT
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55 Series Type E55 Models E20BC to L24HT Temperature Switch

Brand: United Electric Controls Ltd.
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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

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    Specifications

    Brand

    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
    • Low Voltage Directive (LVD) 2006/95/EC
    • UL (C,US) 873
    • UR

    Approvals & Certifications

    • ISO 9001

    Bulb Material

    • Copper
    • Stainless Steel

    Capillary Length

    • Model R25HT - 10 feet (3 meters)
    • Models E20BC to E23BC & E20BS to E23BS - 6 feet (2 meters)

    Capillary Material

    • Copper
    • Stainless Steel

    Deadband

    • Temperature Deadband: Typically 1% of Range Under Laboratory Conditions (21.11° C (70° F) Circulating Bath at Rate of 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

    • 1 A at 125 Vac Resistive
    • 20 A 125/250/480 Vac Resistive
    • 22 A 480 Vac for R25HT & L24HT Heat Trace Models
    • Close Deadband, 5 A at 125/250 Vac Resistive
    • External Manual Reset, 15 A at 125/250/480 Vac Resistive

    Enclosure, Body Material

    • Epoxy Powder-Coated with Stainless Steel
    • Gasketed Die Cast Aluminum

    Environmental Protection

    • IP66
    • NEMA 4X

    Fill Material

    • Temperature Fill: Non-Toxic Oil

    Materials of Construction

    • Thermowell: 316 Stainless Steel
    • Union Connector & Thermowell: Brass
    • Union Connector: 304 Stainless Steel

    Mounting

    • Panel
    • Surface

    Name Plate, Tag Material

    • Stainless Steel, Paper ID Tag & Wire Attachment

    NPT Connection

    • 1/2" NPT Female
    • 3/4" NPT

    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

    • SPDT

    Temperature Range

    • Maximum

    Vibration

    • Set Point Repeats after 2.5 G, 5 to 500 Hz

    Documentation

    Catalogs

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