Part Number Explanation

• BW: Braking resistor

• 072: Nominal resistance 72 Ω

• 003: Continuous power rating 0.3 kW

Main Technical Specifications

• Resistance: 72 Ω (tolerance ±10%)

• Continuous power: 0.3 kW

• Peak power: Approximately 7.2 kW for short-time operation

• Thermal protection: Built-in overtemperature switch

• Protection class: IP20

• Operating ambient temperature: -20 °C ~ +40 °C

• Cooling mode: Natural air cooling

• Weight: About 0.9 kg

Key Features

1. Absorbs regenerative energy during motor braking and avoids DC bus overvoltage.

2. Ultra-compact size, fits well in cramped cabinet spaces.

3. Solid wirewound structure for steady long-term operation.

4. Integrated thermal cut-off provides overheat protection.

Typical Applications