Product Description

The Mini Power-Zone Unit Substation from Schneider Electric is a miniaturized version of our PowerZone Unit Substation. Included are:

Primary Main Circuit Breaker
Sealed Step-Down Transformer
Secondary Main Circuit Breaker
Distribution Panelboard

Because the Mini Power-Zone Unit Substation is furnished as a complete package, considerable savings in installation time and costs can be realized.

Features

Type 3R enclosure; suitable for both indoor and outdoor use
Rated for Service Entrance use
185°C (365°F) insulation with 115°C (239°F) temperature rise
Sealed, epoxy-resin encapsulated transformer
Panel section has copper bus and uses Square D™ brand QO™ style circuit breakers
UL Listed per UL 1062 File E92978, limited to primary and secondary voltages shown in Selection Tables

Mini Power-Zone centers are furnished with factory-installed primary main and secondary main circuit breakers only. Circuit breaker ratings are selected to meet National Electrical Code (NEC) requirements and to coordinate with transformer magnetizing inrush current.

Feeder circuit breakers are standard QO plug-on type, bolt-on option available, which can be ordered, as required, from the local Schneider Electric distributor. If ground fault protection is required, Square D brand QwikGard™ circuit breakers may be used in all sizes. Tandem circuit breakers are not permitted.

Typical Applications

Small shopping centers
Portable offices
Assembly lines
Construction sites
Emergency power
Temporary power
Guard shacks/other shacks
Retail
Areas with limited space

The Mini Power-Zone Unit Substation uses a separate transformer and panelboard section. This allows the panel section to be removed and wired first, if desired. Also the transformer can be replaced without disturbing the panel section and associated wiring. The new transformer simply slides into the top of the panel section, and the primary and secondary leads are reconnected to the main circuit breakers.

General Information

Available in single and three phase configurations:

Single phase configuration supplies a 120/240 branch panelboard
Three phase configuration supplies a 208Y/120 branch panelboard

Two panelboard options for Mini Power-Zone products protected by a backfeed (secondary main) circuit breaker:

QO load center interior (MPZ prefix); branch circuit accepts QO (plug-on) circuit breakers only
NQ panelboard interior (MPZB prefix); branch circuit accepts QO or QOB (bolt-on) circuit breakers

Available in multiple interrupting ratings, based on the customer’s available fault current.

FAL primary main for 18 kAIC
FHL primary main for 25 kAIC
HJ primary main (480 V only) for 65 kAIC; only available with the MPZB option

A shunt trip option can be added to the primary main circuit breaker.

Two choices of enclosure material:

Powder coat painted, standard hot-rolled steel
Powder coat painted, 304 stainless steel

All designs are Type 3R rated for indoor/outdoor use.

For NEMA Type 4X applications–product must be ordered as three separate components.

Type 4X enclosed circuit breakers
Type 4X encapsulated transformer
Type 4X NQ panelboards

NOTE: Cannot be obtained as Unit Substation / Integrated Solution.

Seismic Certification:

Mini Power-Zone (MPZB)—solution with bolt-on branch circuit breakers is compliant with the seismic requirements of ASCE/SEI 7, self-certified to ICS ES AC 156 by SHAKE TABLE QUALIFICATION TESTING.

MPZB units are OSHPD Special Seismic Certified Pre-approved. (OSP). Labels available from Schneider Electric: order part number 7400CAOSHPDMPZB.

Single Phase Unit Substation

The single phase Mini Power-Zone Unit Substation is UL Listed for indoor and outdoor applications.

Standard Square D brand QO plug-on branch circuit breakers or Qwik-Gard ground fault circuit breakers may be ordered from any Schneider Electric distributor as required.

Shunt trip capability on the primary circuit breaker is available by special order if your local fire department requires remote tripping provisions where used as service equipment.

UL Listed, electrostatically shielded Mini Power-Zone units are also available by special order.

Three Phase Unit Substation

The three phase Mini Power-Zone Unit Substation is UL Listed for indoor and outdoor applications.

Standard Square D brand QO plug-on branch circuit breakers or Qwik-Gard™ ground fault circuit breakers may be ordered from any Schneider Electric distributor as required.

Shunt trip capability on the primary circuit breaker is available by special order if the local fire department requires remote tripping provisions where used as service equipment.

UL Listed, electrostatically shielded Mini Power-Zone units are also available by special order.

Battery Test
Runtime Calibration
Annunciators
Display Calibration