Brake resistor – SK BRU5-1-240-050
275299004 - 0821
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Temperature monitoring
For connection to the frequency inverter, a temperature switch (bi-metal) is optionally available in two
versions for temperature monitoring of the footprint braking resistor. The trigger characteristic selection
depends on the installation position / mounting of the braking resistor.
Installation in the vicinity of the frequency inverter
Direct installation below the frequency inverter
Nominal temperature of 180°C
Part No. 275991100
Nominal temperature of 100°C
Part No. 275991200
Information
The enclosed temperature switch fastening material is not required for mounting at the
SK 5xxP frequency inverter.
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NOTICE
Impermissible heating
If the footprint braking resistor is mounted directly below the frequency inverter, a temperature switch
with a nominal 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 observe this may result in damage to the cooling system of the frequency inverter (fan).
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Technical Data
General
Switching temperature
°C
100 ± 5
180 ± 5
Approvals
CE, RoHS, UL
Protection class
IP40
Tightening torque
Mounting
Bimetallic switch
Nm 1.8 – 2.0
Threads
M4
Weight
kg
≈
0.05
Wrench size
10
Electrical data
Number of wires
2
Switching cycles
10000
Voltage
V
250 AC
24 DC
Current
AC
A
2.5
1)
/ 1.6
2)
DC
A
2.0
1)
Stated value is cos
φ
= 1.
2)
Stated value is cos
φ
= 0.6.