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General| Voltage | Up to 690 VAC |
|---|---|
| Standards | IEC 60947-2, UL 489, CSA C22.2 No. 5 |
| Type | Molded Case Circuit Breaker |
| Frame Size | NRX |
| Voltage Rating | Up to 690V AC |
| Poles | 3, 4 |
| Mounting | Fixed |
| Protection Functions | Overload, Short Circuit, Ground Fault |
| Communication Options | Modbus, Profibus, Ethernet |
Essential safety measures for personnel involved in installation, operation, and maintenance.
Defines criteria for personnel to be considered qualified for breaker operation and maintenance.
Overview of Series NRX breakers, their design, and applications in switchgear.
Details the location and importance of the circuit breaker nameplate for rating information.
Describes the drawout breaker and its integration with the drawout cassette.
Details the fixed mount circuit breaker, its installation, and connection configurations.
Procedures for inspecting shipping containers and the circuit breaker for damage upon receipt.
Step-by-step instructions for installing a drawout circuit breaker into its cassette.
Brief overview of Series NRX breaker features and accessories.
Describes the arc chamber's function in quenching arcs and channeling gases.
Overview of the four-part tripping system, including trip units and current sensors.
Information on Digitrip RMS trip units, their self-powered nature, and front-settable protection.
Guidance on cleaning circuit breaker external surfaces using appropriate methods.
Recommendations for inspection frequency based on operation cycles and service intervals.
Outlines three essential functional tests recommended for Series NRX circuit breakers.
