One of the issues that face each of us today is how to provide “practical safeguards of employees”. The provisions of NFPA 70E is intended to provide a safe working area for employees relative to hazards arising from the use of electricity. One of these hazards has been defined as Arc Flash. According to NFPA 70E, an arc flash is a “dangerous condition associated with the release of energy caused by an electrical arc.” Due to the seriousness of this issue, the NFPA 70E stipulates requirements for personnel working on or near live exposed electrical conductors. These requirements are written around two factors: distance that defines the arc flash boundary and personal protective equipment.

Schneider Electric’s remote racking device for Masterpact® NW circuit breakers is designed to help you reduce the arc flash safety hazard for personnel during installation, startup and maintenance procedures by allowing maintenance personnel the ability to “rack” a low voltage draw-out circuit breaker from a location outside of the arc flash boundary. The compact, portable, and simple design enhances the effective use of the remote racking device.

Benefits:

• Significantly reduces risk of exposure to direct blast or projectiles during an arc flash event. Personnel can operate the racking mechanism of circuit breakers from a distance of up to 30 feet allowing operators to be outside of the arc flash boundary
• Enhances operator peace of mind with multiple safety features:

— Self-test for correct operation gives visual indication the device is working properly
— The visual indication warns the operator when the racking mechanism has completed its cycle for consideration when moving back into the arc flash boundary area

• Improves efficiency of maintenance and installation personnel with a lightweight and portable design:

— With a simple connection design, the Masterpact NW remote racking device can be easily attached and operated by one person
— Easily transferred from one circuit breaker to another during maintenance or installation procedures
— No application limitations based on height or position of circuit breaker
— Compact protective case with retractable handle and wheels can be easily maneuvered even in tight spaces

• Aids in user compliance with arc flash personnel protection as listed in NFPA 70E
• Applicable to Masterpact NW circuit breakers installed in the following configurations:

— Power-Zone 4® Switchgear
— Power-Style® QED-2 Switchboards
— Power-Style® QED-6 Rear-Connected Switchboard
— Model 6 Motor Control Centers
— Other equipment supplied by OEM partners

Related Documents

• Masterpact NW Remote Racking Device Brochure
• NWMPRRT - Masterpact NW Remote Racking Device