ANSI Certified Masterpact Circuit Breakers

ANSI Certified Masterpact NT series features

• Available in frame ampere rating up to 800A
• Interrupting Rating 42kA at 254Vac, 42kA at 508Vac
• Available in fixed and drawout constructions
• Rotated rear terminals (rotatable from horizontal to vertical and vice versa) and front-connected terminals are available

ANSI Certified Masterpact NW series features

• Available in frame ampere ratings up to 4,000A (W-frame) and 6000A (Y-frame, wide-construction)
• Interrupting Ratings up to 200kA at 254Vac, 200kA at 508Vac, 130kA at 635Vac
• Available in fixed and drawout constructions (Drawout in W-frame available only up to 3,200A)
• Rotated rear terminals (rotatable from horizontal to vertical and vice versa) and front-connected terminals are available
• Arc flash limiting (L1F) Masterpact™ NW feeder breakers available in 800, 1,600, and 2,000 ampere ratings
• Drawout Masterpact NW are available in ArcBlok™ construction. The ArcBlok™ design extinguishes the arc at the rear of the circuit breaker cell reducing the damage and eliminating the need for special seals on the cell door

Common features

• Rated for AC voltage systems through 635V
• Cradle position indicator: connected, test and disconnected
• Simple, visual contact wear indicators available
• Full complement of field-installable accessories common to all standards available for flexibility and helps in reducing inventory holding cost
• Four interchangeable and upgradeable Micrologic trip unit models to choose
• Available Direct Ethernet Modbus TCP connection to each Circuit Breaker (IP address per Circuit Breaker)
• Available EcoStuxure® power metering and monitoring capabilities
• Meets UL 1066 and ANSI C37 standards

How to Videos

Square D Masterpact Installation Video – Part 1

Square D Masterpact Installation Video – Part 2

Masterpact NW Padlock Attachment | Schneider Electric Support

• Reliable circuit protection for your application
• Flexible and simple offer, with proven performance
• Save time in electrical design, mounting, and wiring
• Tackle last minute changes with field installable accessories

• Electrical Distribution Equipment
• Commercial Buildings
• Industrial Buildings
• Oil & Gas
• Water WasterWater
• Healthcare Facilities
• Data Centres
• Educational Campuses