Trip Units Part 1

Trip Units

Pow-R-Line C Group Mounted Switchboards feature a standardized, cost effective design that makes them easy to install and maintain. They utilize the full family of Cutler-Hammer molded case circuit breakers and fusible switches.

Design capabilities are enhanced by the wide range of available main devices, utility provisions, and customer metering arrangements.

One Customer Metering
  • Full family of IQ metering and protective devices available.
  • Conventional meters and switches available.
two Utility Metering
  • Built to specific utility requirements for all service areas.
Main Devices, Individually Mounted
  • Series C Breaker; 400-2,500 amperes, fixed mounted or drawout.
  • Insulated Case Power Breaker; SPB, 800-5,000 amperes, fixed mounted.
  • Insulated Case Power Breaker; SPB, 800-4,000 amperes, drawout.
  • Power Circuit Breaker; DSII/DSLII, 800-4,000 amperes, fixed mounted or drawout.
  • Digitrip RMS 310, 510, 610, 810, 910, and OPTIM 750 and 1050 Trip Units available.
  • Bolted pressure contact switch; 800-6,000 amperes, fixed mounted.
  • Fusible switches; FDPW, 400-1,200 amperes, fixed mounted.
  • Main lugs only; mechanical or compression, 400-6,000 amperes.
  • Incoming busway or transformer connection available.
four Feeder Devices, Compartmentalized
  • Series C Breaker; 15-1,200 amperes.
  • Digitrip RMS 310, OPTIM 750, and OPTIM 1050 Trip Units available.
  • Fusible switches; FDPW, 30-1,200 amperes.
  • Ability to mix circuit breakers and fusible switches.
  • Optional 11X compartment for customer mounted devices available.
  • Optional customer metering available; maximum 38X space.

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Trip Units Part 2

Trip Units
one Branch wiring gutters.
two Optional hinged gutter covers to provide easy access to branch wiring.
three Unique chassis design accommodates a variety of Cutler-Hammer breakers, trip units, and accessories.
four Fully rated cross bus (never tapered) is predrilled to accept future Pow-R-Line C sections.
five Optional IQ Energy Sentinel mounted on a K-frame breaker. This device allows the customer to monitor energy usage (kWh) through a BIM, IMPACC, or a personal computer. IQ Energy Sentinels are available on standard F-, J-, or K-frame breakers.
six Ability to twin mount K-frame (400 ampere) breakers.
seven L-frame breaker with a Digitrip OPTIM 1050 Trip Unit factory wired for communications, ground fault, energy monitoring, and harmonics monitoring.
eight All OPTIM Trip Unit wiring is marked and securely bound with wire ties and accessible for customer inspection. The Cutler-Hammer reputation for quality and attention to detail is typified by the wiring, consistently characterized as "superior."

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Optional Features for Trip Units

Hinged Gutter Covers Optional hinged gutter covers to provide easy access to branch wiring.
Five L- or N-frame breakers with Digitrip OPTIM Trip Units and one Breaker Interface Module can be mounted in a single 45-inch (1143.00-mm) wide distribution structure. Six L- or N-frame breakers can be mounted when the Breaker Interface Module is mounted in another section or is not required. Five L- or N-Frame Breakers
Digitrip OPTIM Trip Units Digitrip OPTIM Trip Units can be easily programmed and monitored at the switchboard using the Breaker Interface Module. A hinged compartment houses the BIM and a 30 V Dc power supply for communications capability. For OPTIM 1050 Trip Units, a potential transformer module is supplied to provide voltage for power and energy monitoring.


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