Part Number Explanation

• BW: Braking resistor

• 168: Nominal resistance 68 Ω (±10%)

• -T: Built‑in NC thermal switch (overtemperature protection)

Main Technical Specifications

• Resistance: 68 Ω (tolerance ±10%)

• Continuous power (100% cdf): 0.8 kW (800 W)

• Intermittent power:

  • 1.4 kW @ 50% cdf

  • 2.6 kW @ 25% cdf

  • 4.8 kW @ 12% cdf

  • 7.6 kW @ 6% cdf

• Peak power: ~8 kW (short‑term)

• Tripping current IF: 5 A RMS

• Thermal protection: Integrated NC thermostat (‑T version)

• Protection class: IP20 (perforated metal enclosure)

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

• Cooling: Natural air cooling (grid housing)

• Dimensions (W×D×H): Approx. 450 × 120 × 185 mm

• Weight: Approx. 3.8–4.5 kg

• SEW material no.:

  • BW168 (without switch): 820604X

  • BW168‑T (with switch): 18201334

• Design: Wirewound on ceramic core, metal grid enclosure

• Connections: M8 bolts, ceramic terminals (2.5 mm²)

Key Features

1. Medium‑high power: 0.8 kW continuous, higher intermittent ratings.

2. Robust grid construction: Good airflow, suitable for frequent braking cycles.

3. Integrated safety: Thermal switch prevents overheating in cabinet installations.

4. Wide compatibility: Matches SEW MOVIDRIVE® / MOVITRAC® B (400 V, 5.5–11 kW).

5. Compact enclosed design: Easy panel mounting, IP20 protection.

Typical Applications

• SEW drive compatibility: MOVIDRIVE® MDX60B/61B, MOVITRAC® B (400 V, 5.5–11 kW).

• Medium‑duty conveyors, packaging machines, material handling, crane/hoist auxiliary drives.

• Applications requiring higher intermittent braking power and built‑in thermal protection.