Overview
The SEW Eurodrive BREMSWIDERSTAND BW 147 is a fixed power resistor designed for dynamic braking in SEW motor drives and motion control systems. BREMSWIDERSTAND (German for “brake resistor”) provides resistive load to dissipate braking energy when drives decelerate or stop. This 47 Ohm, 1200W unit is commonly integrated into SEW drive cabinets to protect the DC link from overvoltage and reduce mechanical brake wear.
Key Features
- 47 Ohm resistance, 1200W continuous power rating
- Designed for dynamic braking applications in SEW drive systems
- Heavy-duty construction for industrial motor control
- Aluminum housing for efficient heat dissipation
- Drop-in replacement for SEW brake resistor applications
- New open-box condition, fully tested and functional
Technical Specifications
Resistance: 47 Ohm
Power Rating: 1200W (1.2 kW)
Resistance Type: Power Resistor (Fixed)
Housing: Aluminum
Weight: 9.0 lbs
Dimensions: 18.0 × 7.0 × 5.0 inches
Application: Dynamic braking, DC link voltage clipping
Typical Applications
- SEW Eurodrive variable frequency drive (VFD) brake circuits
- Motor deceleration and stop energy dissipation
- Protecting DC bus from regenerative overvoltage
- Industrial conveyor, crane, and pump drive systems
- Manufacturing equipment requiring controlled motor braking
Compatibility & Replacements
Compatible With
- SEW Eurodrive drive series (DFS, KAF, KHF, MOVIDRIVE, MOVIGEAR models)
- Systems requiring 47 Ohm, 1200W dynamic braking
- DC bus overvoltage clipping in converter circuits
Replaces / Drop-In Replacement For
- SEW BREMSWIDERSTAND BW 147 (exact replacement)
- SEW part number 8207135
- Direct equivalent for OEM brake resistor cartridges
Works With
- SEW MOVIDRIVE and MOVIGEAR series inverters
- SEW analog and fieldbus-capable drive controllers
- Standard DC bus protection schemes in modular drive systems
