Ansi short time withstand ratings up to 100 ka four

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ANSI short-time withstand ratings up to 100 kA Four racking positions – connected, test, disconnected, removed – with status indicator on cradle Simple, visual contact wear indicators Meets ANSI standard C37.13 and UL1066 Full complement of field-installable devices Selection of four interchangeable Micrologic ® trip units with PowerLogic ® power metering, communications and monitoring capabilities available in advanced trip units Most common relay functions as defined by ANSI C37.2 and C37.90 integrated into circuit breaker Electrically operated optional 4-pole breakers available Mechanical and electrical operations test w/o maintenance 800 A to 1600 A frame – 12,500 mechanical operations with 2800 electrical – ANSI value is 1750 (9700 total) 2000 A to 3200 A frame – 10,000 mechanical operations with 1000 electrical – ANSI value is 250 (1100 total) 4000 A to 5000 A frame – 5,000 mechanical operations with 1000 electrical – ANSI value is 250 (1100 total) Arc flash limiting breakers available
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43 NW UL489 NW UL489 circuit breaker has most of the same features as listed for the Masterpact ® NW. The differences are listed below. Rated for all AC voltage systems through 600 V Available for mounting in fixed or drawout configurations Available in constructions that meet ANSI C37.13 and UL1066 standards NT ANSI The Masterpact NT ANSI ® -Certified/UL 1066 Listed power circuit breaker meets or exceeds all ANSI and UL489 design and testing standards. It also meets ANSI high level endurance testing without maintenance. Plus, state-of-the-art, thermoset composite resin construction provides higher electrical ratings than traditional circuit breakers – all in a lighter, easier-to-install package. The Masterpact NT ANSI-Certified/UL 1066 Listed power circuit breaker provides unsurpassed performance in the smallest package available on the market today. 70% smaller than standard sized 800 A to 3200 A Masterpact NW Meets ANSI C37.13 and UL 1066. Also available in constructions that meet IEC 60947-2 and UL 489 Complete product offering through 42 kAIR at 508 V Rated for all AC voltage systems through 508 V 800 A frame size available ANSI short-time withstand ratings up to 42 kA Small size allows for higher density in switchgear. Can install up to eight 800 A breakers in one 30-inch section of Power-Zone ® 4 Switchgear Four racking positions (connected, test, disconnected and removed) with status indicator on cradle Selection of four interchangeable Micrologic ® trip units with PowerLogic ® power metering, communications and monitoring capabilities available in advanced trip units Most common relay functions, as defined by ANSI C37.2 and C37.90, integrated into the trip unit system Trip units, sensor plugs and most accessories are field-installable without circuit breaker adjustment Electrically operated optional Mechanical and electrical operations test w/o maintenance 800 A – 12,500 mechanical operations with 2800 electrical – ANSI value is 1750 (9700 total) NT UL 489 NT UL489 breaker has most of the same features as listed for the Masterpact NT. The differences are listed below.
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