*Disclaimer*

Ampacities and sizing below are based on full, free air rating. Please contact the office prior to sizing your system to ensure an appropriately sized system and accurate pricing.

Equipment termination provisions may increase the size of the cable bus required.

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Cable Bus Sizing – Enclosure Dimensions

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

The reference figures shown are the typical arrangement of power cables in a multi-layered system. Ampacity is based upon 90°C operating temperature. The systems shown on this page are a small selection of what we do; for voltages of 35 KV, 69 KV, and higher please contact Superior Tray Systems Inc.

600V

3-Phase 3-Wire
3-Phase 4-Wire

5kV

3-Phase 3-Wire
3-Phase 4-Wire

15kV

3-Phase 3-Wire
3-Phase 4-Wire

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

Type 2

Type 3

Type 3A

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

Type 2A

Type 3A

Type 3B

Type 4

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

Type 2A

Type 3A

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

Type 3B

Type 4

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 2A

Type 3B

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

Type 3B

Type 4A

ELECTRICAL PROPERTIES

Superior Bus has been installed in every environment across the continent. Learn about the electrical characteristics of this remarkable system.