Rockwell Automation MV SMC Flex Motor Controller (for Series K or later) - Manual (Page 166)

156 Rockwell Automation Publication 1560E-UM051F-EN-P - June 2013
Appendix A Specifications
Table 30 - Power Fuses and Losses
Description Specifications
Power Fuses and Fuse Holders
This section details the power fuse and fuse holder technical information that each medium voltage product conforms to.
It includes information on R-rated fuses, as well as mounting dimensions.
Fuse Types
R Rated: 2R to 24R
2R to 24R
19R, 38R
Interrupting Ratings : 2.4 kV to 7.2 kV
A480R – 5.0/2.4 kV
A072 – 7.2 kV
A051B – 5.0/2.4 kV
50 kA RMS SYM (80 kA RMS ASYM)
Mounting (Center) Dimensions
Clip-On 304.8 mm (12.0 in)
Bolt-On 454.2 mm (17.88 in)
Maximum Heat Dissipation (kW) (Convection)
Controller Rating Start or Stop Cycle
(@ 450% Starting Duty)
Continuous
180 A 360 A 600 A
2500 V 13.5 19.2 45.3 .250
5000 V 27.0 38.5 90.5 .250
7200 V 40.5 57.7 136.0 .250
Power Losses
Power Cell Losses Current (A) Fuse Size Losses (kW)
± 10%
90 6R .125
180 12R .350
240 18R .510
360 24R 1.000
600 57X 1.500
Power Bus Losses Bus Rating (A) Fully Loaded Bus
Losses per 915 mm (36 in.) Section
(Watts) ±%
1200 150
2000 200
3000 200
Control Power Transformer Losses The losses from a 500 VA control power transformer fully loaded are approximately 50 W per controller.
Low Voltage Panel Losses The losses from the standard control circuit are approximately 25 W per controller.