12.BR.100-6150 KEB
Wake Industrial LLC is not an authorized distributor of this product.
The KEB 12.BR.100-6150 is part of the BR Braking Resistors series and has a resistance of 150 Ohms with a voltage class of 400 V. This resistor offers a continuous rating of 230 W and a peak load of 4.6 kW. It is equipped with a temperature switch that operates at 160 °C using a normally closed contact and features an IP60 rating.
Internal Product Review
The 12.BR.100-6150 is a KEB BR braking resistor designed for dependable drive braking in 400 V systems, with 150 Ω resistance for controlled energy dissipation. A 230 W continuous rating and 4.6 kW peak load give the resistor strong thermal capacity for intermittent deceleration duty.
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Product Description:
KEB’s 12.BR.100-6150 braking resistor belongs to the BR Braking Resistors series and is intended for connection to the DC link of KEB drive converters. By converting surplus electrical energy into heat whenever a motor decelerates or a load overhauls, the unit helps keep the DC bus voltage within safe limits and supports predictable braking torque. The compact assembly contains a single resistor element, a thermal switch, and connection terminals, providing a self-contained dissipation path that can be panel mounted close to the drive.
The resistor has a continuous power rating of 230 W, so it can dissipate that amount of heat indefinitely under the stated ambient conditions without exceeding its internal temperature limit. A nominal resistance of 150 Ω sets the current drawn from the DC link and determines how regenerated energy is converted to heat during braking. The device is assigned to the 400 V voltage class used by KEB drives in the 3-phase 400 VAC range. Short duty peaks are permitted up to 4.6 kW, allowing the unit to absorb regenerated energy during rapid stops when the duty cycle is observed. When the internal temperature reaches 160 °C, a normally closed switch opens to signal the control circuit or interrupt braking. The enclosure has an IP60 rating, which prevents dust ingress during cabinet installation.
The wiring lugs accept a conductor cross-section of 14 AWG / 2.5 mm², matching the current levels produced during peak absorption. Because the permissible duty cycle is only 5 %, the resistor must spend most of each operating period cooling between braking events. The thermal switch can be connected to digital inputs because its maximum AC load is 250 VAC / 0.5 A, while its DC load is 30 VDC at the same current. This arrangement allows either mains-voltage or low-voltage monitoring circuits to be used without an interposing relay.
