Power-Zone Load Center; Model III

Classes 6010, 6020 / Refer to Catalog 6020CT9401 or Data Bulletin 6010DB1001

Power-Zone Load Center Unit Substations

Unit Substation

Complete Close Coupled Unit Substations Available

Product Type

Class Nos.

Digest Section No.

Primary Section

Medium voltage load interrupter switchgear

6040, 6045

11

Metalclad switchgear

6055

Low voltage Power-Style™ QED switchboard

2741–2744

Air terminal chamber

7240, 7310, 7320, 7421–23

Transformer Section

Open, ventilated dry—Power-Dry™

7421–23

14

Open, ventilated dry/cast resin combination—Uni-Cast™

7320

Open, ventilated cast resin—Power-Cast™

7310

Mineral oil or high fire point fluid—liquid

7240

Secondary Section

Medium voltage load interrupter switchgear

6040

11

Metalclad switchgear

6055

Medium voltage motor control center

8198

Low voltage Power-Style QED switchboard

2741–2744

Air terminal chamber

7240, 7310, 7320, 7421–23

Low voltage drawout switchgear

6037

Low voltage Model 6 motor control centers

8998

17


Power-Zone Model III Package Unit Substations

General

Model III Package Unit Substation
with HVL/cc Load Interrupter Switch (on left)

Power-Zone Model III package unit substations combine a primary switch, dry-type transformer, and I-Line distribution section into a single, compact unit. All components are engineered, manufactured, and tested by Schneider Electric. The substation is available with a UL listing.

The Model III is only 49 inches deep and 90 inches high, which allows the entire substation to pass through standard size doorways and narrow hallways.

The Model III is front accessible; the transformer taps are accessible from the side. For proper ventilation, a minimum distance of 12 inches should be maintained on the transformer side of the equipment.

Model III package unit substations are ideal for renovations and high rise applications requiring increased customer electrical demand as well as new construction requiring multiple zones and a small footprint.


75–1000 kVA at 480 V; 75–500 kVA at 240 V

Available with primary voltages of 2400–13800 V. Forced air cooling (AA/FA) provides an additional 33%. Features 220 °C insulation and 150 °C, 115 °C, or 80 °C temperature rise. Largest 80 °C or 115 °C rise unit available is 750 kVA.

The secondary circuit breaker distribution section may be equipped with an individually mounted secondary main breaker or an I-Line distribution panelboard. Branch circuit breakers from PowerPact B to PowerPact RLC 1200 A may be installed. PowerPact M-, P-, and R-frame molded case circuit breakers are available with electronic trip units.

Additional options include PowerLogic and ION series metering, surge arresters, and I-Line plug-on units with a Surgelogic™ Surge Protective Device (SPD).

Incoming Line Section

Most Model IIIs are supplied with a Square D brand fused HVL/cc 600 A load interrupter switch. The HVL/cc offers the smallest footprint in the industry and is an exclusive sealed interruption type compartmentalized switch. Where switching and overcurrent protection are provided elsewhere, a full-height air-filled terminal chamber can be provided in place of the switch.

Primary Switch Ratings, Type HVL/cc

Nominal Voltage

4.16

13.8

BIL

60

95

Continuous amperes

600

600

Interrupting amperes

600

600

Fault close (kA asymmetrical)

40

40

Momentary current (kA asymmetrical 10 cycles)

40

40

Duty-cycle-fault-close (number of operations)

4

4

Grounding switch fault close (kA asymmetrical)

40

40

Short-time rating (kA asymmetrical 2 seconds)

25

25

Dielectric withstand (kV 1 minute)

19

36

Electrical endurance (close-open)

100

100

Mechanitcal endurance (close-open)

1000

1000

Was this helpful?