Sizing

Every Superior Bus ™ system is designed to ensure efficient and reliable performance. We also custom build systems with different dimensions where space restrictions exist at the project sites.

The reference figures shown are the typical arrangement of power cables in a multi-layered Superior Bus ™ system. For higher cable bus voltage (35 KV and 69 KV) contact Superior Tray Systems Inc.

600V

5kV

15kV

600V 3-Phase 3-Wire
Ampacity (A) Voltage (V) System Configuration A B C Reference Figure
800 600 3-Phase 3-Wire 12 1/2 6 9 Type 1
1200 600 3-Phase 3-Wire 12 1/2 6 9 Type 2
1300 600 3-Phase 3-Wire 12 1/2 6 9 Type 2
1400 600 3-Phase 3-Wire 12 1/2 8 9 Type 2
1600 600 3-Phase 3-Wire 12 1/2 8 9 Type 2
1750 600 3-Phase 3-Wire 12 1/2 8 9 Type 2
1950 600 3-Phase 3-Wire 15 1/2 6 12 Type 3
2100 600 3-Phase 3-Wire 21 1/2 8 18 Type 3
2600 600 3-Phase 3-Wire 21 1/2 6 18 Type 3A
2800 600 3-Phase 3-Wire 21 1/2 8 18 Type 3A
3100 600 3-Phase 3-Wire 21 1/2 8 18 Type 3A
3300 600 3-Phase 3-Wire 21 1/2 8 18 Type 3A
3500 600 3-Phase 3-Wire 21 1/2 8 18 Type 3A
3900 600 3-Phase 3-Wire 21 1/2 10 18 Type 4
4200 600 3-Phase 3-Wire 21 1/2 10 18 Type 4
4700 600 3-Phase 3-Wire 21 1/2 10 18 Type 4
5000 600 3-Phase 3-Wire 21 1/2 10 18 Type 4
5300 600 3-Phase 3-Wire 21 1/2 10 18 Type 4
5300-11000 600 3-Phase 3-Wire Custom designed and built.
Please contact Superior Tray Systems Inc.
Heavy Duty System Up To 20,000 Amps 600 3-Phase 3-Wire
Type 1 Cable Bus Enclosure
Type 1
Type 2 Cable Bus Enclosure
Type 2
Type 3 Cable Bus Enclosure
Type 3
Type 3A Cable Bus Enclosure
Type 3A
Type 4 Cable Bus Enclosure
Type 4
600V 3-Phase 4-Wire
Ampacity (A) Voltage (V) System Configuration A B C Reference Figure
800 600 3-Phase 4-Wire 15 1/2 6 12 Type 1A
1200 600 3-Phase 4-Wire 15 1/2 6 12 Type 2A
1300 600 3-Phase 4-Wire 15 1/2 6 12 Type 2A
1400 600 3-Phase 4-Wire 15 1/2 8 12 Type 2A
1600 600 3-Phase 4-Wire 15 1/2 8 12 Type 2A
1750 600 3-Phase 4-Wire 15 1/2 8 12 Type 2A
1950 600 3-Phase 4-Wire 21 1/2 6 18 Type 3A
2100 600 3-Phase 4-Wire 21 1/2 8 18 Type 3A
2600 600 3-Phase 4-Wire 21 1/2 6 18 Type 3B
2800 600 3-Phase 4-Wire 27 1/2 8 24 Type 3B
3100 600 3-Phase 4-Wire 27 1/2 8 24 Type 3B
3300 600 3-Phase 4-Wire 27 1/2 8 24 Type 3B
3500 600 3-Phase 4-Wire 27 1/2 8 24 Type 3B
3900 600 3-Phase 4-Wire 21 1/2 8 18 Type 4A
4200 600 3-Phase 4-Wire 27 1/2 10 24 Type 4A
4700 600 3-Phase 4-Wire 27 1/2 10 24 Type 4A
5000 600 3-Phase 4-Wire 27 1/2 10 24 Type 4A
5300 600 3-Phase 4-Wire 27 1/2 10 24 Type 4A
5300-11000 600 3-Phase 4-Wire Custom designed and built.
Please contact Superior Tray Systems Inc.
Heavy Duty System Up to 20,000 600 3-Phase 4-Wire
Type 1A Cable Bus Enclosure
Type 1A
Type 2A Cable Bus Enclosure
Type 2A
Type 3A Cable Bus Enclosure
Type 3A
Type 3B Cable Bus Enclosure
Type 3B
Type 4A Cable Bus Enclosure
Type 4A
5kV 3-Phase 3-Wire
Ampacity (A) Voltage (kV) System Configuration A B C Reference Figure
1100 5 3-Phase 3-Wire 12 1/2 6 9 Type 2
1300 5 3-Phase 3-Wire 12 1/2 8 9 Type 2
1800 5 3-Phase 3-Wire 12 1/2 8 9 Type 2
2000 5 3-Phase 3-Wire 21 1/2 8 18 Type 3
2200 5 3-Phase 3-Wire 21 1/2 6 18 Type 3A
2700 5 3-Phase 3-Wire 21 1/2 8 18 Type 3
3600 5 3-Phase 3-Wire 21 1/2 8 18 Type 3A
4100 5 3-Phase 3-Wire 21 1/2 10 18 Type 4
5400 5 3-Phase 3-Wire 21 1/2 10 18 Type 4
Above 5400 5 3-Phase 3-Wire Custom designed and built.
Please contact Superior Tray Systems Inc.
Type 2 Cable Bus Enclosure
Type 2
Type 3 Cable Bus Enclosure
Type 3
Type 3A Cable Bus Enclosure
Type 3A
Type 4 Cable Bus Enclosure
Type 4
5kV 3-Phase 4-Wire
Ampacity (A) Voltage (kV) System Configuration A B C Reference Figure
1100 5 3-Phase 4-Wire 15 1/2 6 12 Type 2A
1300 5 3-Phase 4-Wire 15 1/2 8 12 Type 2A
1800 5 3-Phase 4-Wire 15 1/2 8 12 Type 2A
2000 5 3-Phase 4-Wire 21 1/2 8 18 Type 3A
2200 5 3-Phase 4-Wire 21 1/2 6 24 Type 3B
2700 5 3-Phase 4-Wire 21 1/2 8 18 Type 3A
3600 5 3-Phase 4-Wire 21 1/2 10 18 Type 4
4100 5 3-Phase 4-Wire 27 1/2 10 24 Type 4A
5400 5 3-Phase 4-Wire 33 1/2 10 24 Type 4A
Above 5400 5 3-Phase 4-Wire Custom designed and built.
Please contact Superior Tray Systems Inc.
Type 2A Cable Bus Enclosure
Type 2A
Type 3A Cable Bus Enclosure
Type 3A
Type 3B Cable Bus Enclosure
Type 3B
Type 4 Cable Bus Enclosure
Type 4
Type 4A Cable Bus Enclosure
Type 4A
15kV 3-Phase 3-Wire
Ampacity (A) Voltage (kV) System Configuration A B C Reference Figure
1100 15 3-Phase 3-Wire 12 1/2 8 9 Type 2
1300 15 3-Phase 3-Wire 12 1/2 8 9 Type 2
1700 15 3-Phase 3-Wire 15 1/2 8 12 Type 2
2000 15 3-Phase 3-Wire 21 1/2 8 18 Type 3
2200 15 3-Phase 3-Wire 21 1/2 8 18 Type 3A
2700 15 3-Phase 3-Wire 21 1/2 8 18 Type 3A
3500 15 3-Phase 3-Wire 27 1/2 8 24 Type 3A
4100 15 3-Phase 3-Wire 21 1/2 10 18 Type 4
5300 15 3-Phase 3-Wire 27 1/2 12 24 Type 4
Above 5300 5 3-Phase 3-Wire Custom designed and built.
Please contact Superior Tray Systems Inc.
Type 2 Cable Bus Enclosure
Type 2
Type 3 Cable Bus Enclosure
Type 3
Type 3A Cable Bus Enclosure
Type 3A
Type 4 Cable Bus Enclosure
Type 4
15kV 3-Phase 4-Wire
Ampacity (A) Voltage (kV) System Configuration A B C Reference Figure
1100 15 3-Phase 4-Wire 15 1/2 8 12 Type 2A
1300 15 3-Phase 4-Wire 15 1/2 8 12 Type 2A
1700 15 3-Phase 4-Wire 21 1/2 8 18 Type 2A
2000 15 3-Phase 4-Wire 21 1/2 8 18 Type 3A
2200 15 3-Phase 4-Wire 21 1/2 10 18 Type 4
2600 15 3-Phase 4-Wire 27 1/2 8 24 Type 3A
2700 15 3-Phase 4-Wire 27 1/2 10 18 Type 4
3500 15 3-Phase 4-Wire 27 1/2 12 24 Type 4
4100 15 3-Phase 4-Wire 27 1/2 10 24 Type 4A
5300 15 3-Phase 4-Wire 33 1/2 12 30 Type 4A
Above 5300 15 3-Phase 4-Wire Custom designed and built.
Please contact Superior Tray Systems Inc.
Type 2A Cable Bus Enclosure
Type 2A
Type 3A Cable Bus Enclosure
Type 3A
Type 4 Cable Bus Enclosure
Type 4
Type 4A Cable Bus Enclosure
Type 4A

Superior Tray ™ and Superior Bus ™ are trademarks of Superior Tray Systems Inc.