SEW BW018-035 Brake Resistor
BW018-035 is a dedicated braking resistor manufactured by SEW, matched with the brand’s frequency converters and servo drive units. It absorbs excess regenerative energy generated by motor deceleration, braking and overhauling, protecting drive devices from overvoltage damage and securing stable operation of mechanical equipment such as cranes, conveyors and lifting machinery.
Description
Part Number Explanation
BW: Braking resistor
018: Nominal resistance 18 Ω
035: Continuous power rating 3.5 kW
Main Technical Specifications
Resistance: 18 Ω (tolerance ±10%)
Continuous power: 3.5 kW
Peak power: Approximately 18 kW (short-time operation)
Rated RMS current: 13.9 A
Thermal protection: Normally closed built-in temperature switch
Protection class: IP20
Operating ambient temperature: -20 °C ~ +40 °C
Mounting type: Open frame grid structure, natural cooling
Weight: About 8.3 kg
Key Features
Converts regenerative energy into heat during motor braking and deceleration, and avoids DC bus overvoltage.
Integrated overtemperature protection ensures operational safety.
Durable wirewound structure, suitable for long-term industrial operation.
Applicable for installation inside electrical cabinets or external mounting.
Typical Applications
Matching with SEW servo drives and power supplies including MOVIDRIVE series, BPS10, BTS10 and BTS20 series. Widely used in automated production lines, conveying equipment and general industrial machinery.
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