Rockwell Automation ArmorStart Bulletin 280G, User Manual

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Accessories E-3
IP67 Dynamic Brake Resistor
Note: Always check the resistor ohms against minimum resistance for drive being used.
Note: Duty Cycle listed is based on full speed to zero speed deceleration. For constance regen at full speed, duty cycle capability is half of what is listed. Application
Type 1 represents maximum capability up to 100% braking torque where possible. Application Type 2 represents more than 100% braking torque where possible, up
to a maximum of 150%.
Figure E.1 Dynamic Brake Resistor Approximate Dimensions
* Length is user-selectable based on the suffix added to the catalog number. For a length of 500±10mm, add -M05 to the end of the catalog number. For a length of
100±10mm, add -M1 to the end of the catalog number.
Application Type 1 Application Type 2
Drive and
Motor Size
kW
Part Number
Resistance
Ohms ± 5%
Continuous
Power kW
Max Energy
kJ
Max Braking
Torque % of
Motor
Braking
Torque % of
Motor
Duty
Cycle %
Braking
Torque % of
Motor
Duty
Cycle %
400-480 Volt AC Input Drives
0.37 (0.5) 284R-360P500 360 0.086 17 305% 100% 47% 150% 31%
0.75 (1) 284R-360P500 360 0.086 17 220% 100% 23% 150% 15%
1.5 (2) 284R-360P500 360 0.086 17 110% 100% 12% 110% 11%
2.2 (3) 284R-120P1K2 120 0.26 52 197% 100% 24% 150% 16%
4 (5) 284R-120P1K2 120 0.26 52 124% 100% 13% 124% 10%
Cat No.
A
mm (in.)
B
mm (in.)
C D
mm (in.)
E
mm (in.)
F
mm (in.)
G
mm (in.)
H
mm (in.)
J
mm (in.)
284R-091P500 75 ± 3
(2.95 ± 0.12)
215 ± 5
(8.46 ± 0.2)
* 235 ± 5
(9.25 ± 0.2)
60 ± 2
(2.36 ± 0.08)
127
(5)
12.54
(0.49) 60 ± 2
(2.36 ± 0.08)
50 ± 1.5
(1.97 ± 0.06)
284R-360P500
284R120P1K2 420 ± 5
(16.54 ± 0.2)
440 ± 5
(17.32 ± 0.2)
H
J
F
C
G
B
D
E
A