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 |
|---|---|---|
|
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 |
15 |
Power-Zone Model III Package Unit Substations
General
Model III Package Unit Substation |
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 |