Abb a2a200nrw150ecb 150A Enclosed Circuit Breaker

Product Description

The ABB a2a200nrw150ecb is a 150-amp enclosed circuit breaker housed in a NEMA 3R enclosure, designed for use in electrical distribution systems where outdoor or weather-resistant protection is required. This unit integrates the Formula A2A breaker within a factory-assembled enclosure, providing overcurrent protection in a ready-to-mount package. Licensed electricians install this type of assembly in service entrance, feeder, and branch circuit applications where a standalone enclosed breaker is specified by plan or code. The NEMA 3R rating means the enclosure resists rain, sleet, and external ice formation.

This enclosed breaker is suited for residential and light commercial electrical installations where outdoor-rated overcurrent protection is required. Typical applications include main disconnect service at detached structures, agricultural buildings, pool equipment pads, and similar locations where a weather-resistant enclosed breaker is specified. The factory-assembled design reduces field wiring time and supports installations governed by NEC requirements for service disconnecting means.

Key Features

• 150-amp rated circuit breaker for overcurrent protection in distribution applications
• NEMA 3R enclosure provides protection against rain, sleet, and ice accumulation
• Formula A2A breaker integrated into factory-assembled enclosure for streamlined installation
• Suitable for use as a service entrance disconnect or feeder protection device
• Enclosed design eliminates the need for a separate enclosure in the field

Compatibility

Designed as an OEM-style enclosed circuit breaker assembly for use in residential and light commercial electrical distribution applications requiring a NEMA 3R rated enclosure.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize the upstream service before beginning any wiring connections to this enclosure. Verify that conductor sizing, conduit entry, and grounding methods meet NEC requirements for the application. Do not exceed the marked ampere rating of the breaker.

Technical Specifications

• Ampere Rating: 150 amps
• Enclosure Type: NEMA 3R
• UPC: 783164639568

Standard Information

• Brand: ABB
• Manufacturer Part Number: a2a200nrw150ecb