Cummins PowerCommand 40 Control OTEC Transfer Switch 400A 208V NEMA 3R
The OTEC 208V 400A 3 Phase Automatic Transfer Switch features PowerCommand 40 Control, a microprocessor-based controller with LCD Display, and a comprehensive list of functions. Cummins OTEC A066Y099 Open Transition transfer switches are a perfect fit for a wide range of commercial and light industrial transfer switch applications.
Break-Before-Make Switch
Electrically operated—Mechanically held
Electrical and mechanical interlocks prevent inadvertent interconnection.
NEMA 3R enclosure for indoor installation only.
This 208V 400A Cummins Transfer Switch provides the basic hardware and features required for automatic operation of a standby generator.
Cummins 208-Volt Transfer Switch Control
PowerCommand 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 3 phase 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 Mechanism
The ATS mechanism operates electrically with a mechanical hold in the Source 1 and Source 2 positions. Cummins OTEC 208-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 Specifications
| Voltage Rating | 120/208-Volts 3 Phase AC at 60 Hertz. |
| Transition Modes | Open Delayed;
Open-In Phase—capable of programmed transition backup |
| Arc Interruption | Multiple Leave Arc Chutes. |
| Neutral Bar | Rated for Full Current with Lugs—Standard on 3 Pole transfer switches. |
| Auxiliary Contacts | Two isolated, normally open contacts for customer use close to indicate switch position. Wired to terminal block, rated at 10A and 250-Volts. |
| Surge Rating | Conforms to IEEEC62.41 and IEEE C62.42 |
| Transfer Time | Total transfer time source to source does not exceed 6 cycles at 60 Hertz (does not include programmed transition). |
| Manual Operation | Manual transfer capable with all sources disconnected. |
Product Specifications
Model
Model Number; A066Y099
Manufacturer; Cummins Onan
Made In USA; No
Voltage; 120/208V Three Phase
Enclosure; Nema 3R Indoor/Outdoor
UL Listed; Yes
Type; Automatic Transfer Switch
Transfer Switch Model; Cummins OTEC PowerCommand 40
Features
Weight; 275 lbs
Dimensions; 59H x 27.5W x 16.5D
Warranty Information
Consumer Warranty; Cummins 1-Year Comprehensive Limited Warranty
Commercial Warranty; Cummins 1-Year Comprehensive Limited Warranty
Fuel
Fuel Gauge; No
Transfer Switches
Transfer Switch Model; Cummins OTEC PowerCommand 40
Transfer Switch Amps; 400 Amps
Transfer Switch Circuits; None
Ats Poles; 3 Pole
