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Power-Zone 4

Low Voltage Drawout Switchgear with Masterpact Circuit Breakers

Part of Set Series

ANSI rated to provide superior electrical distribution, protection, and power management in a space-efficient footprint. Masterpact NT/NW drawout power circuit breakers, deliver maximum up time, system selectivity, ease of maintenance, and reliable circuit protection.

Schneider Eletric Square D Picture
Power-Zone 4
  • Features

    • Stored Energy Drawout Circuit Breakers
    • System voltages up to 600Volts AC
    • Compartmentalized and Barriered enclosures
    • Designed and built to ANSI® C37.20.1 and is Listed to UL® 1558
    • Masterpact NW/NT circuit breakers are designed and built to ANSI C37.13 and C37.16. Listed to UL 1066
    • Short-circuit current rating up to 200 kA without fuses
    • High short-time withstand ratings up to 100 kA for 30 cycles, minimum
    • Family of field installable and upgrade-able Micrologic® trip units
    • Smallest equipment footprint available in this product class
    • Front access to control and communications wire connections
    • Bolted silver-plated copper bus provided as standard (up to 6000 amperes maximum)
    • Large cable compartment pull area allowing maximum room for power cables (located at rear)
    • NEMA Type 1, Type 1 with gaskets or NEMA Type 3R outdoor walk-in enclosures
    • Up to 8 Masterpact NT circuit breakers can be mounted in a 30-inch wide section. (Not available for 600 volts.)

    Optional Features
    • Smart Systems Ethernet communications for energy & asset management with built-in web pages
    • Automatic Throwover PLC-based control or UL1008 listed Automatic Transfer Switch
    • Arc flash limiting Masterpact NW feeder breakers available in 800, 1600, and 2000 ampere ratings
    • Optional Masterpact NW/NT Remote Racking Device
    • High Resistance Ground Controls/Resistor
    • Surge Protection Devices
    • Infrared Windows/Thermal Monitoring
    • Energy Reduction Maintenance Setting Switch
    • Insulated Bus
    • Remote Racking Device
    Communicating Smart Systems Power-Zone 4 Switchgear
    • Smart Systems for Electrical Distribution is a simple, plug-and-play, Ethernet-connected power distribution asset management and energy monitoring solution to help you reduce downtime and improve operational efficiency.
    Smart Systems enables local or remote 24/7 real-time status and energy monitoring of Square D Masterpact™ circuit breakers as well as other power distribution and monitoring devices, such as power meters. Rely on smart data to monitor your buildings’ health, pinpoint troublesome areas, and facilitate a predictive maintenance program. To learn more see the additional links below


    Rugged, Long Life Operation
    • The Masterpact breaker and PZ4 Enclosure are designed and tested per stringent ANSI ratings
    • Low maintenance
    • Masterpact breakers are built to exceed number of ANSI required electrical and mechanical operations
    • Add-on Intelligence
    • Communications via Ethernet and enhanced web pages turn your gear into a Smart System
    • Range of trip units add metering & diagnostic capability
    • Advanced metering from our industry leading Powerlogic power meters and monitors Designed to take up Less Space and Time
    • Unit mount, drawout for quick maintenance and replacement
    • Up to 8-800A feeders in 30" W enclosure
    • Depth ranges from 60'-80" D Quality and Performance
    • High Short Circuit Ratings without fuses (up to 200kA @ 480V, 130kA @ 600V)
    • Segregated power and control wireways
    • NEMA/UL/ANSI standards and built in ISO9001 facility.


    Critical Facilities such as:
    • Water/Wastewater
    • Healtcare Facilities
    • Oil & Gas
    • Automotive
    • Industrial Buildings
    • Mining
    • Banks
    • Labs

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