If a motor brakes or a drive controller reduces its speed reference value, the kinetic energy of the drive system is fed back to the DC link capacitors of the drive controller. However the capacity of these capacitors is limited to a defined maximum voltage. From a certain voltage level, an integrated brake chopper connects the braking resistor as a consumer – this absorbs the existing braking energy, the voltage lowers and the kinetic energy is mostly converted to heat. In addition to the different drive controllers, STOBER offers corresponding braking resistors in different sizes and performance classes.
Tubular fixed resistor
Contact-protected design with thermal contact
Small footprint
High braking power for cyclic loads
Flat resistor
Compact design in rectangular profile
Short-circuit-proof
Self-extinguishing
Protection class IP 54
Can be used in a harsh environment
Bottom brake resistor (size 0 – size 2)
Flat resistor with optimized design
Simple assembly
Upgradable at any time
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