Schneider Electric offers a wide variety of low voltage Square D® power distribution products. From our QED-2 Powerstyle® switchboards using group-mounted I-Line® construction to our QED-6 compartmentalized switchboards. Schneider Electric provides a complete UL offering. Power-Zone® 4 Switchgear is built to strict ANSI standards and features the industry preferred Masterpact® NW and NT circuit breakers. These products and components are the preferred choice for many end users, consultants and contractors. They are used by many of the leading specialty OEMs sub-systems such as paralleling switchgear and UPS equipment.

Power-Zone 4® Low Voltage Switchgear with Masterpact® NW and NT Circuit Breakers

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...

• Available up to 5000A bus rating
• Micrologic® trip units with power monitoring, control and 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 UPSs and PDPs
• Thru-the-door breaker operation allows unit to be operated/racked while door is closed; this reduces NFPA 70E PPE category by one level
• Rear-hinged doors allow easy access to cables; this reduces NFPA 70E 2004 PPE category by one level

• Benefits of using Power-Zone® 4 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

Switchboards - Rear Connected QED-6 with Masterpact Circuit Breakers and PowerLogic Monitoring

Rear connected switchboards offer many of the same benefits of ANSI rated switchgear listed above. Short times withstand ratings on the breakers, structures and as well as high short circuit interrupting ratings. Lower equipment cost, 100% rated drawout breakers (breaker frame sizes to 250A to 5000A) and maintainability for extended life are reasons this product is used in these facilities.

Data Center Application: Paralleling switchgear UPS input switchgear UPS output switchgear Load bank switchgear QED-6 switchboard structures offer many of the same benefits as Power-Zone 4 switchgear. Some of these feature differences are: Masterpact and PowerPact® circuit breakers have higher short time ratings and interrupting ratings than competitive products Up to eight Masterpact NT circuit breakers can be mounted in a single 30" wide section PowerPact circuit breakers 250A and 600A frame for smaller loads Electrically operated breakers UL 489 rated and structure UL 891 listed 150kA SCCR without fuses @ 480V (200kAIR @ 240V)

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: Download the Power Zone 4 Brochure Learn More about our MCC product family Learn More about the Power Zone 4 LV Switchgear