Cummins PowerCommand 40 Control OTEC Transfer Switch 400A 240V NEMA 3RThe OTEC 240V 400A Single Phase Automatic Transfer Switch features PowerCommand 40 Control, a microprocessor-based controller with LCD Display, and a comprehensive list of functions. Cummins OTEC A066Y106 Open Transition transfer switches are a perfect fit for a wide range of commercial and light industrial transfer switch applications.Break-Before-Make SwitchElectrically operated—Mechanically heldElectrical and mechanical interlocks prevent inadvertent interconnection.NEMA 3R enclosure for indoor or outdoor installation.This 240V 400A Cummins Transfer Switch provides the basic hardware and features required for automatic operation of a standby generator.Cummins 240-Volt Transfer Switch ControlPowerCommand 40 is a microprocessor controller with LCD digital display, a full list of functions, and tactile soft switches for straightforward operation and navigation. Highlighted controls include PC software configuration with sensing on both sources; manual restore to S1; synchronization check; and event logging. The S-6560 Specification Sheet includes all the benefits and features.With a programmed transition, switch timing allows the Cummins ATS to disconnect the load from both sources for a programmed time period—especially important for large inductive loads.Cummins 400 Amp ATS Advanced MechanismThe ATS mechanism operates electrically with a mechanical hold in the Source 1 and Source 2 positions. Cummins OTEC 240-Volt 400-Amp Automatic Transfer Switch Series switches perform a break-before-make action while electrical interlocks prevent interconnection of the normal and emergency signals. High pressure silver alloy contacts resist burning or pitting; arcing surfaces protect the main contacts. Multiple leaf chutes cool and quench arcs, further protecting the contacts. A protective cover allows inspection while preventing accidental contact with energized surfaces.UL-1008 certification including the contact assemblies covers applications requiring high endurance switching capability for the life of the ATS.Cummins OTEC Transfer Switch SpecificationsVoltage Rating120/240-Volts Single Phase AC at 60 Hertz.Transition ModesOpen Delayed;Open-In Phase—capable of programmed transition backupArc InterruptionMultiple Leave Arc Chutes.Neutral BarRated for Full Current with Lugs—Standard on Single Phase transfer switches.Auxiliary ContactsTwo isolated, normally open contacts for customer use close to indicate switch position. Wired to terminal block, rated at 10A and 250-Volts.Surge RatingConforms to IEEEC62.41 and IEEE C62.42Transfer TimeTotal transfer time source to source does not exceed 6 cycles at 60 Hertz (does not include programmed transition).Manual OperationManual transfer capable with all sources disconnected.
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