Cummins Onan OT III PowerCommand Non-Automatic Transfer Switch Series: 40 - 1000 Amps, open or delayed transition

OT III|Non-Automatic||40 - 1000 AMPS

Part #:cummins-ot-3-non-automatic-transfer-switch

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The Cummins Power Generation OTIII non-automatic transfer switch offers flexibility when remote controlled or manual transfer or retransfer of load is required. Non-automatic transfer switches are used in conjunction with an automatic transfer switch which monitors the normal power source and remotely signals the nonautomatic transfer switches to transfer and retransfer load.

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  • Plug connections between switch and control to facilitate service.
  • Door mounted controls
  • Provide easy access for adjustments and service.
  • Ample space for field power and control connections.
  • Terminal markings compatible with generator set.
  • Positive interlocking - Mechanical and electrical contactor interlocking prevents source-to-source connection through power or control wiring.
  • Local/remote operation modes - Can be operated locally with a door-mounted keyswitch or remotely via input signals from an automatic transfer switch or other control device.
  • Main contacts - Heavy-duty silver allow contacts and multi-leaf arc chutes are rated for total system transfer.
  • Warranty and service - Backed by a comprehensive warranty and worldwide distributor network.
  • Operating temperature -40 °F (-40 °C) to 122 °F (50 °C)
  • Storage temperature -40 °F (-40 °C) to 140 °F (60 °C)
  • Humidity Up to 95% relative, non-condensing
  • Altitude Up to 10,000 ft (3,000 m) without de-rating Surge withstand ratings Performance tested per IEEE-587 - 1980 procedure.
  • Total transfer time (sourceto- source)
  • Will not exceed 6 cycles at 60 Hz with nominal voltage applied to the actuator and without programmed transition installed.
Residential Use.

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