nord NORDAC PRO SK 511E Series - Electrical Data for Brake Resistors; Table 6: Electrical Data for Brake Resistor SK BR2

2 Assembly and installation
BU 0505 EN-3021 37
2.6.1 Electrical data for brake resistors
Item Type Part. No.
R
[
Ω
]
P
[W]
Short circuit power [kW]
Connecting cable/
terminals
1.2 s 7.2 s 30 s 72 s
1
SK BR4-240/100
275991110
240
100
2.2
0.8
0.3
0.15
2 x 1.9 mm
2
, AWG 14/19
L = 0.5 m
2
SK BR4-150/100
275991115
150
100
2.2
0.8
0.3
0.15
3
SK BR4-75/200
275991120
75
200
4.4
1.6
0.6
0.3
4 SK BR4-35/400 275991140 35 400 8.8 3.2 1.2 0.6
2 x 2.5 mm
2
,
AWG 14/19
L = 0.5 m
5
SK BR2-35/400-C
278282045
35
400
12
3.8
1.2
0.6
Terminals
2 x 10 mm
2
6
SK BR2-22/600-C
278282065
22
600
18
5.7
1.9
0.9
7
SK BR2-12/1500-C
278282015
12
1500
45
14
4.8
2.2
8
SK BR2-9/2200-C
278282122
9
2200
66
20
7.0
3.3
9
SK BR4-400/100
275991210
400
100
2.2
0.8
0.3
0.15
2 x 1.9 mm
2
, AWG 14/19
L = 0.5 m
10
SK BR4-220/200
275991220
220
200
4.4
1.6
0.6
0.3
11
SK BR4-100/400
275991240
100
400
8.8
3.2
1.2
0.6
2 x 2.5 mm
2
, AWG 14/19
L = 0.5 m
12
SK BR4-60/600
275991260
60
600
13
4.9
1.8
0.9
13
SK BR2-100/400-C
278282040
100
400
12
3.8
1.2
0.6
Terminals
2 x 10 mm
2
14
SK BR2-60/600-C
278282060
60
600
18
5.7
1.9
0.9
15
SK BR2-30/1500-C
278282150
30
1500
45
14
4.8
2.2
16
SK BR2-22/2200-C
278282220
22
2200
66
20
7.0
3.3
17
SK BR2-12/4000-C
278282400
12
4000
120
38
12
6.0
18
SK BR2-8/6000-C
278282600
8
6000
180
57
19
9.0
19
SK BR2-6/7500-C
278282750
6
7500
225
71
24
11
Terminals
2 x 25 mm
2
20
SK BR2-3/7500-C
278282753
3
7500
225
71
24
11
21
SK BR2-3/17000-C
278282754
3
17000
510
161
54
25
*) Maximum duration within 120s
Table 6: Electrical data for brake resistor SK BR2-… and SK BR4-…
The chassis brake resistors (SK BR2-…) listed above are equipped with a temperature switch at the
factory. Two different temperature switches with different triggering temperatures are optionally
available for bottom-mounted brake resistors (SK BR4-…)
In order to use the signal from the temperature switch it must be connected to a free digital input of the
frequency inverter and, for example, parameterised with the function "Voltage block" or "Fast stop".
NOTICE
Impermissible heating
If the bottom-mounted resistor is mounted below the frequency inverter, a temperature switch with a rated switch-
off temperature of 100°C (Part No. 275991200) must be used. This is necessary to prevent impermissible heating
of the frequency inverter.
Failure to comply with this may result in damage to the cooling system of the device (fan).