07.BR.100-6620 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 07.BR.100-6620 is part of the BR Braking Resistors series and has a continuous power rating of 56 watts, with a peak load of 1.12 kilowatts. It features a resistance of 620 ohms, IP60 protection class, and supports a voltage class of 400 volts. The resistor uses a single module with a 1.5 mm² core cross-section and 16 AWG wire gauge.
Internal Product Review
The 07.BR.100-6620 is a KEB BR braking resistor built for controlled energy dissipation in 400 V drive systems, with a 620 Ω resistance suited to stable braking performance. A 1.12 kW peak load rating and 160 °C monitoring response temperature support dependable operation under intermittent braking demands.
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Product Description:
The 07.BR.100-6620 braking resistor is produced by KEB for the BR Braking Resistors series. It is a passive thermal load used alongside variable-frequency drives to dissipate regenerative energy and prevent DC bus overvoltage events. Within industrial automation, the part connects directly to the drive’s chopper circuit and turns excess electrical energy into heat whenever a motor decelerates or a driven load forces energy back into the inverter. This controlled energy absorption helps protect the converter and connected motor from unstable braking conditions during repeated stopping cycles.
During continuous operation, the resistor can convert up to 56 W of power without surpassing its base temperature. This rating is paired with a duty cycle of 5 %, which means the element may be energized for only a small portion of each minute to remain within thermal limits. Short peaks reach 1.12 kW, providing margin for abrupt deceleration events and brief regenerative bursts. With a resistance of 620 Ω, the component limits current when connected to a bus in the 400 V class. A single internal module carries the load, and the rolled wire core has a cross-section of 1.5 mm² to support even heat distribution during intermittent braking pulses.
Thermal protection is handled by an NC micro-switch that changes state at 160 °C. Its contact is rated for control circuits up to 250 V AC / 0.5 A or 30 V DC at the same current, allowing it to signal an overtemperature condition to the surrounding control circuit. The housing carries an IP60 rating, which restricts dust ingress while still allowing surface cooling air to reach the fins. Field wiring is made with conductors up to 16 AWG, matching the internal jumper size and the 1.5 mm² core so short lead runs remain practical. The enclosed design and built-in thermal contact make the resistor suitable for drive systems that need predictable braking energy dissipation without a separate forced-air assembly.
