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  • Thermal overload relay RW27-2D3-U017, 11–17 A, three-pole

    Thermal Overload Relay, 11–17 A, 3-Pole — RW27-2D3-U017

    Thermal Overload Relay, 11–17 A, 3-Pole — RW27-2D3-U017
    $56.70
  • Thermal overload relay RW27-2D3-U023, 15–23 A, three-pole

    Thermal Overload Relay, 15–23 A, 3-Pole — RW27-2D3-U023

    Thermal Overload Relay, 15–23 A, 3-Pole — RW27-2D3-U023
    $56.70
  • IEC thermal overload relay – RW27-2D2-U010

    Thermal Overload Relay, 2-Pole, 7–10A – RW27-2D2-U010

    Thermal Overload Relay, 2-Pole, 7–10A – RW27-2D2-U010
    $56.70
  • Representative gray RW27 overload relay with front adjustment dial, shown for RW27-2D3-U004

    Thermal Overload Relay, 2.8–4 A – RW27-2D3-U004

    Thermal Overload Relay, 2.8–4 A – RW27-2D3-U004
    $56.70
  • Thermal overload relay RW27-2D2-U032, 22–32 A, two-pole

    Thermal Overload Relay, 22–32 A, 2-Pole — RW27-2D2-U032

    Thermal Overload Relay, 22–32 A, 2-Pole — RW27-2D2-U032
    $56.70
  • Thermal overload relay RW27-2D3-U032, 22–32 A, three-pole

    Thermal Overload Relay, 22–32 A, 3-Pole — RW27-2D3-U032

    Thermal Overload Relay, 22–32 A, 3-Pole — RW27-2D3-U032
    $56.70
  • Thermal overload relay RW67-1D3-U040, 25–40 A, three-pole

    Thermal Overload Relay, 25–40 A, 3-Pole — RW67-1D3-U040

    Thermal Overload Relay, 25–40 A, 3-Pole — RW67-1D3-U040
    $98.65
  • Thermal overload relay RW67-5D3-U040, 25–40 A, three-pole

    Thermal Overload Relay, 25–40 A, 3-Pole — RW67-5D3-U040

    Thermal Overload Relay, 25–40 A, 3-Pole — RW67-5D3-U040
    $116.00
  • IEC thermal overload relay – RW27-2D3-D028

    Thermal Overload Relay, 3-Pole, 1.8–2.8A – RW27-2D3-D028

    Thermal Overload Relay, 3-Pole, 1.8–2.8A – RW27-2D3-D028
    $56.70
  • IEC thermal overload relay – RW27-2D3-D063

    Thermal Overload Relay, 3-Pole, 4–6.3A – RW27-2D3-D063

    Thermal Overload Relay, 3-Pole, 4–6.3A – RW27-2D3-D063
    $56.70
  • IEC thermal overload relay – RW27-2D2-U040

    Thermal Overload Relay, 32–40 A – RW27-2D2-U040

    Thermal Overload Relay, 32–40 A – RW27-2D2-U040
    $56.70
  • Thermal overload relay RW67-5D3-U050, 32–50 A, three-pole

    Thermal Overload Relay, 32–50 A, 3-Pole — RW67-5D3-U050

    Thermal Overload Relay, 32–50 A, 3-Pole — RW67-5D3-U050
    $121.35

Parts knowledge

About Starters

Motor starters control electrical power to an air compressor motor and provide the switching and protective functions required by the application. Proper starter selection is essential for reliable starting, stopping, and coordination with the compressor's pressure and safety controls.

Verify voltage, phase, horsepower, full-load amperage, coil voltage, overload range, enclosure type, and control-circuit requirements before ordering. Electrical components should be selected and installed by qualified personnel in accordance with the equipment wiring diagram and applicable codes.