Rockwell Automation MV SMC Flex Motor Controller (for Series K or later) User Manual
Page 165
Rockwell Automation Publication 1560E-UM051F-EN-P - June 2013
155
Specifications
Appendix A
Table 29 - Power Bus and Ground Bus
Description
Specifications
Main Horizontal Power Bus
Bus Bar Material
Tin-plated copper
Optional Bus Bar Material
Silver-plated copper
Continuous Current Rating at 40°C (104°F)
1200, 2000 and 3000 A
Maximum Full Load Temperature Rise
65°C (149°F)
Maximum Full Load Temperature
105°C (221°F)
Fault Withstand Current Rating (3 seconds)
60 kA RMS SYM
(96 kA ASYM)
Type of Bus Bracing
Molded glass polyester
Anti-hygroscopic
Dimensions per Phase
1200 A
2000 A
3000 A
Qty 1 – 6 x 100 mm (1/4 x 4 in)
Qty 2 – 6 x 100 mm (1/4 x 4 in)
Qty 2 – 9.5 x 127 mm (3/8 x 5 in)
Cross Sectional Area per Phase
1200 A
2000 A
3000 A
65 mm
2
(1.0 in
2
) total
129 mm
2
(2.0 in
2
) total
242 mm
2
(3.75 in
2
) total
Insulating Material Between Phases and Ground
Air (Standard)
Optional Insulation Material for Main Horizontal Bus
Type :
Sleeve, heat shrink
Material :
Polyolefin
Thickness :
1.4 mm (0.055 in)
Anti-hygroscopic :
0.5 to 1%
Electrical Strength :
900 V/mil
Vertical Power Bus
Bus Bar Material
Tin-plated copper
Continuous Current Rating at 40°C (104°F)
400, 600 and 800 A
Fault Withstand Current Rating (½ cycle)
50 kA RMS SYM
(80 kA ASYM)
Insulation Material for Vertical Bus
Type :
Sleeve, heat shrink
Material :
Polyolefin
Thickness :
1.14 mm (0.045 in)
Anti-hygroscopic :
0.5 to 1%
Electrical Strength :
900 V/mil
Ground Bus
Ground Bus Material
Bare copper
Optional Ground Bus Material
Tin-plated copper
Continuous Current Rating at 40°C (104°F)
600 A
Dimensions per Phase
600 A
6 x 51 mm (1/4 x 2 in)
Cross Sectional Area
600 A
32 mm
2
(0.5 in
2
) total