The ASCO Service Entrance
Power Transfer Switch
The ASCO Service Entrance
Power Transfer Switch
Combines automatic power switching with the necessary disconnecting, grounding, and bonding required for use as service entrance equipment. The power transfer switch meets all National Electrical Code requirements for service entrance use. Transfer switches generally are installed at facilities that have a single utility feed and a single emergency power source.

ASCO SERIES 300SE products use two types of construction.

Products 400 amperes or less, utilize a single enclosure which includes a service (utility source) disconnect circuit breaker, as well as the power transfer switch, grounding and bonding provisions. Products 600 amperes and above, utilize a multi-section switchboard construction including a service equipment section containing the service (utility source) disconnect circuit breaker, grounding, and bonding provisions. A second section contains the power transfer switch.

Product Features:

  • Suitable for use as service entrance equipment. ASCO Series 300 Power Transfer Switch is listed to UL 1008 (standard for transfer switching equipment).
  • Sizes available from 70 - 3000 amps, 600 VAC, 50 or 60 Hz, single or three phase.
  • Meets all NEC requirements for use as service entrance.
  • Silver plated copper ground and neutral bus solderless screw type terminals.
  • Ground fault trip protection provided on sizes 1000 amps and above
  • Available with solid or switched neutral.
ASCO Series 300 SE Rated 800 amperes Type 1 Enclosure with Service Entrance Equipment
600 - 3000 Amp Construction
ASCO Series 300 SE Rated 200 amperes Type 1 Enclosure with dual source breakers
70 - 400 Amp Construction

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Florham Park, NJ 07932