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Masterpact NT
Circuit Breakers

Masterpact® NT Insulated Case Circuit Breakers Technical Data
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	Catalogs
	Masterpact NT/NW Universal Power Circuit Breakers Document Number: 0613CT0001 Masterpact NT/NW universal power circuit breakers are designed to protect electrical systems from damage caused by overloads, short circuits and equipment ground faults. View or download (8MB)

	Instruction Bulletins
	Masterpact NT Low Voltage Power/Insulated Case Circuit Breaker Document Number: 48049-225-03 Installation and operating instructions for the Masterpact NT low-voltage power and insulated case circuit breakers. View or download (12.2MB)

	Cradle Position Switch (CD, CT and CE) for Masterpact NT, P-frame and NS630b-NS1600 Drawout Circuit Breakers Document Number: 48049-232-01 Instructions for installing a cradle position switch (CD, CT and CE) into Masterpact NT, P-frame and NS630b-NS1600 drawout circuit breakers. View or download (780K)

	Masterpact NT/NW Drawout Circuit Breaker - Unpacking Document Number: 48049-405-01 Unpacking instructions for the Masterpact NT and NW drawout circuit breakers. Complete installation and operating instructions are shipped with the cradle. View or download (465K)

	Data Bulletins
	Enhancing Short Circuit Selective Coordination with Low Voltage Circuit Breakers Document Number: 0100DB0403 Presents techniques for improving the short circuit selective coordination of low voltage circuit breakers used in electrical distribution systems. View or download (1.2MB)

	How to Determine Circuit Breaker Ampere Rating Document Number: 0613DB0301 Explains how to determine ampere rating for circuit breakers equipped with the Micrologic trip system. View or download (53K)

	Ground-fault Systems for Masterpact Circuit Breakers Document Number: 0613DB9905 Describes several of the ground-fault systems for Masterpact circuit breakers.Systems included are: Ground-fault alarm (without tripping); Ground-fault protection (with tripping); Residual ground-fault sensing; Ground-source return; Modified differential ground-fault system (MDGF) View or download (43K)

	Arc Chute Filter Technology Document Number: 0613DB0203 Presents the new breakthrough technology employed in the filtered arc chute assemblies seen in the following circuit breakers: Masterpact NT, Masterpact NW, Compact NS 630b-3200A, P-frame, R-frame. The arc chute assemblies significantly reduce the arcing energy that can be released in an interruption. View or download (66K)

	Arc Flash Protection with Masterpact NW and NT Circuit Breakers Document Number: 0613DB0202 Introduces the new arc flash protection technology of the Masterpact NW and NT circuit breakers, which can enhance workplace safety. View or download (124K)

	Masterpact NT Circuit Breaker Accessories Click here to view instructions bulletins for Masterpact NW circuit breaker accessories.

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