Power-Zone^™ 4 Switchgear Features and Benefits Summary

Power-Zone 4 low voltage drawout switchgear is designed and built to all applicable ANSI, UL, CSA and NOM standards and are UL/cUL listed.

Seismically qualified to IBC/ASCE7 standards and OSHPD (CA Healthcare) preapproval available as an option.

Maximum short-circuit current ratings of up to 200 kA—without fuses

Maximum short-time withstand ratings of up to 100 kA for 60 cycles continuous

Maximum system voltages of up to 635 Vac

Vertical and cross bus ratings of 2000 A, 3200 A, 4000 A, 5000 A and 6000 A, with up to 10,000 A maximum for cross bus (density-rated bus available)

Neutral bus ratings of 50% and 100% up to 6000 A, 150% up to 3200 A, 200% up to 2500 A

Structure frames, compartment doors, and barriers offer a complete system engineered for unmatched durability.

Structure depths of 54 in. (1372 mm), 60 in. (1524 mm), 72 in. (1829 mm), and 80 in. (2032 mm). Arc Resistant not available in 54 in. depth.

Structure widths of 22 in. (559 mm), 30 in. (762 mm), and 36 in. (914 mm)

Enclosure ratings of NEMA 1 and NEMA 3R (walk-in)

Bolted, silver-plated copper bussing provided as standard. Tin-plated copper bus available as an option for corrosive environments.

Allows for a 4-high circuit breaker configuration for high-density applications.

ANSI-49 paint is standard with ANSI 61 or custom colors available upon request.

Large rear cable compartment pull area allows maximum room for power cables.

Bus provisions for future equipment expansion

Optional 18 in. (457 mm) pull boxes provide increased flexibility (not available in AR/PZ-4).

Optional transitions to I-Line™ busway, Model 6 motor control centers, QED2/S and QED3/4 switchboards, transformers, and legacy Power-Zone 3 switchgear.

Optional insulated bus offer provides additional protection against inadvertent fault conditions.

MasterPacT™ circuit breakers are designed and built to ANSI C37.13, C37.16, C37.17 and C37.50 and are listed to UL1066.

Complete family of upgradeable MicroLogic™ trip units are compatible with optional market-leading advanced PowerLogic™ metering and EcoStruxure™ Power data communications features.

Through-the-door circuit breaker access allows for complete visual inspection of both circuit breaker and trip unit.

Circuit breaker cradles provide four different circuit breaker positions of drawout, connected, test, disconnected, and removed.

Circuit breaker cradle offers protection during circuit breaker rack-in/rack-out by isolating the user from contact with live parts.

Remote racking device is also available.

Front access to control and communications wire connections

Flexible, SIS #14 stranded control wire, provided as standard.

Control and communication wiring is installed and connected from the front of the switchgear. The secondary wiring design allows for circuit breaker compartment wiring without removing the circuit breaker from its compartment.

Optional circuit breaker cell shutters are available to offer increased isolation from bus compartment.

Direct Ethernet (Modbus TCP/IP) and Modbus Serial communications are available to circuit breakers and other intelligent devices to satisfy users who desire maximum flexibility and capability for automation and control.

3-pole are standard with optional 4-pole breakers available.