LV Distribution

Switchgear

ANSI Drawout Switchgear for Critical Power Applications

Schneider Electric offers a wide variety of low voltage Square D® power distribution products and components. From our QED-2 Powerstyle® switchboards using group-mounted I-Line® construction to QED-6 compartmentalized switchboards, we utilize the industry-preferred Masterpact®  breakers and Tranparent ReadyTM  technology for ultimate flexibility in our compartmentalized drawout UL switchboards and ANSI switchgear.

The versatility of Square D low voltage switchgear makes it the perfect protection for a wide range of switching and control applications. With Power-Zone 4 (PZ4), Square D offers the next generation of proven, reliable and durable low voltage switchgear. We developed it with your values in mind to improve your electrical system running time and efficiency. >more...

 Power-Zone 4®  Low Voltage Switchgear with Masterpact®  NW and NT Circuit Breakers
One of the major benefits for using ANSI-rated switchgear is the structure and breakers have defined short-time withstand ratings (short circuit current withstand for 30 cycles). When properly adjusted, this allows main and feeder breakers to coordinate with downstream protective devices to insure the device closest to the fault clears first.

This is very important when trying to coordinate with downstream main breakers in UPSs switchgear or other devices downstream. In addition to short time withstand ratings, other benefits such as 100% rated breakers (from 800A to 5000A frames), drawout construction, and maintainability for extended life make low voltage switchgear the primary choice in data centers.

Power-Zone 4 LV drawout switchgear offers proven, reliable and durable switchgear that is required for Critical Power applications. With Masterpact NW UL 1066 Listed circuit breakers Power-Zone 4 LV drawout switchgear is the equipment of choice by consultants and end customers in the following markets:

  • Telecommunications Facilities
  • Data Centers
  • Continuous Process Manufacturing Plants
  • Critical Care Facilities

Power-Zone 4 switchgear is designed as a standalone or as an integral part of the low voltage equipment lineup in a user's power unit substation. Power-Zone 4 switchgear should be used for critical power applications because:

  • drawout construction is required for quick circuit breaker change-out
  • system requirements call for circuit breakers to close within 5-cycles
  • stored energy circuit breakers are required for reliability
  • front access to control wires is desired for ease of installation, maintenance, and upgrade
  • circuit breaker compartmentalization is required for system integrity
  • segregation of circuit breaker compartments from bus and cable compartments is required for equipment
  • isolation breakers without fuses are required for high short circuit current ratings up to 200kAIR

Major benefits:

  • Small, flexible footprint
  • Extended maintenance intervals
  • Segregated access to all wiring
  • Easily added "smart" functionality, such as communications interfaces and power monitoring and control capability
  • Available up to 5000A bus rating
  • Micrologic®  trip units with power monitoring, control an communications
  • Optional PLC based auto transfer schemes
  • Optional Transparent ReadyTM  communications utilizing PowerLogic®
  • Optional Surgelogic®  TVSS
  • Differential ground fault option for 4W systems with multiple sources
  • Arc flash application options:
    • Arc flash limiting feeder breakers up to 2000A reduce arc incident energy on downstream equipment such as UPS and PDPs
    • Thru-the-door breaker operation allows unit to be operated or tracked while door is closed, reducing NFPA 70E PPE category by one level
    • Rear-hinged doors allow easy access to cables, reducing NFPA 70E PPE category by one level

Features of Power-Zone 4 switchgear with Masterpact NT/NW circuit breakers:

  • Switchgear ratings up to 200kA without fused circuit breakers
  • Short circuit current rating for services 1600A to 5000A
  • Thru-the-door breaker operation
  • Front access to all control and communication wiring
  • Up to eight 800A frame Masterpact NT circuit breakers in a single 30-in. wide section
  • Micrologic  trip units with Modbus®  RTU communications
  • Micrologic trip units that are field replaceable and upgradeable
  • Masterpact NW/NT circuit breakers that are maintainable and serviceable

Data center application:

  • Main service switchgear
  • Paralleling switchgear
  • UPS input switchgear
  • UPS output switchgear
  • Load bank switchgear

Benefits of using in data center applications: 

  • Drawout construction is required for quick circuit breaker change-out
  • Transfer system requirements call for circuit breakers to close within 5-cycles and stored energy circuit breakers are required for reliability
  • Front access to control wires is desired for ease of installation, maintenance and upgrade
  • Circuit breaker compartmentalization is required for system integrity
  • Segregation of circuit breaker compartments, from bus and cable compartments, is required for equipment

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Spotlight:

View the Masterpact NT Series Circuit Breaker webcast - this breaker is a fully tested, full-feature power circuit breaker in the smallest footprint available on the market today. Run length is 7.5 minutes.		 Learn More:

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