Series 300 Group 1 Power Transfer Switch

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Product Description and Specifications

The ASCO Series 300 was designed to automatically transfer critical loads in the event of a power outage. It is also designed to handle total system loads including motors and other high inrush and inductive loads.

Series: 300 Group 1
Applications: Commercial, Light, Industrial
Amperage: 30 – 3,000
Poles: 2, 3 or 4
Voltage: 115 – 600V

Features and Benefits

  • The Series 300 is listed to UL 1008 standard for Transfer Switch Equipment and CSA standard C22.2 for automatic transfer switches.
  • Meets NFPA 110 for Emergency and Standby Power Systems and the National Electrical Code (NEC) Articles 700, 701 and 702.
  • Compact sizes rated 30 through 3000 amps in a compact design.
  • Available to 600 VAC, single or three phase.
  • True double-throw operation: The single solenoid design is inherently inter locked and prevents contacts from stopping between sources or from being in contact with both sources at the same time.
  • There’s no danger of the Series 300 ATS transferring loads to a dead source because the unique ASCO single-solenoid operator derives power to operate from the source to which the load is being transferred.
  • Easy-to-read flush-mounted control and display panel provides LED indicators for switch position and source availability. It also includes test and time-delay bypass switches as standard features.
  • Standard engine exerciser for weekly automatic testing of engine generator set with or without load.
  • Supplied with solid neutral termination.
  • Optional switched neutral pole available.
  • Accessory kits available for field upgrades.
  • Available for immediate delivery.
  • Now available for service entrance applications. Contact ASCO for assistance.
  • With space in electrical closets being at a premium, the use of wall or floor-mounted ASCO Power Transfer Switches assures designers optimum utilization of space.
  • All transfer switches through 2000 amps are designed to be completely front- accessible. This permits the enclosures to be installed flush to the wall and still allows installation of all power cabling and connections from the front of the switch.
  • Cable entrance plates are also standard on the 1600 and 2000 amp units to install optional side-mounted pull boxes for additional cable bending space.
  • Adjustable time-delay feature prevents switch from being activated due to momentary utility power outages and generator dips.

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