SEW EURODRIVE-BE2B Spring-Applied Electromagnetic Motor Brake
Description:
Description: SEW
Product No. : EURODRIVE-BE2B
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The SEW-EURODRIVE BE2B is a compact single-disc spring-applied electromagnetic brake exclusively matched with SEW DRN80, DRN90 and DRN100 AC gearmotors. It adopts the safety-critical power-off braking principle: internal compression springs clamp the friction disc to lock the motor shaft once coil power cuts off; energized DC magnetic force pulls back the armature plate to release the brake for normal motor rotation.
BE2B supports three configurable static braking torque grades (10 Nm / 14 Nm / 20 Nm) via different spring assemblies. The fully encapsulated epoxy coil delivers stable performance with low continuous holding power. Optional BMFR manual release lever enables maintenance-free manual rotor unlocking without power supply. A matched SEW BS series rectifier converts industrial AC mains to rated DC coil voltage, which is mandatory for normal brake operation.
Detail:
| Parameter Item |
Technical Specification |
| Full Model Code |
BE2B |
| Manufacturer |
SEW-EURODRIVE |
| Compatible Motor Frames |
DRN80, DRN90, DRN100 standard AC motors |
| Brake Working Principle |
Spring-Applied, Power-Off Braking; DC Electromagnetic Release |
| Optional Static Braking Torque |
10 Nm / 14 Nm / 20 Nm |
| Standard Rated Coil DC Voltage |
24 VDC / 60 VDC / 96 VDC / 180 VDC |
| Matching Input AC Rectifier |
BS24, BS60, BS96, BS180 (SEW dedicated rectifier required) |
| Coil Peak Inrush Power |
160–190 W (short 160ms startup pulse) |
| Continuous Holding Power (IH) |
43 W constant low power consumption |
| Inrush / Holding Current Ratio |
8.5:1 |
| Standard Armature Air Gap |
0.2 mm adjustable via set screws |
| Release Response Time (t1) |
≤ 12 ms |
| Braking Engagement Time (t2) |
≤ 18 ms |
| Friction Disc Structure |
Single-piece organic non-asbestos friction pad |
| Optional Accessory |
BMFR automatic reset manual release lever |
| Net Assembly Weight |
3.8–4.0 kg |
| Mounting Interface |
Flange direct bolt-on rear motor shaft end |
| Maximum Allowable Switching Frequency |
120 cycles per minute |
| Specification Item |
Technical Value |
| Standard Ingress Protection |
IP54 (IP55/IP65 optional customized) |
| Standard Operating Ambient Temp |
-20 °C ~ +40 °C |
| Extended Low-Temp Operation |
Down to -40 °C with dual-coil heating accessory |
| Max Extended High-Temp Environment |
Up to +100 °C for customized heat-resistant variant |
| Storage Temperature Range |
-30 °C ~ +70 °C |
| Relative Humidity Tolerance |
5%–95% RH, non-condensing |
| Vibration Resistance Standard |
IEC 60068-2-6 industrial machinery grade |
| Corrosion Protection Class |
Standard factory anti-rust cast iron coating |
| Permitted Working Medium |
Clean air environment, no heavy corrosive vapor |
| Safety Standard Compliance |
EN ISO 13849-1, general PL c safety performance |
| Global Certifications |
CE, RoHS compliant |
| Max Permitted Inertia Energy Per Brake Cycle |
0.06 × 10⁶ J |
| Service Wear Life |
≥ 5 million full brake-release cycles under rated torque |
| Installation Orientation |
Unlimited horizontal / vertical mounting |
| Maintenance Interval |
Gap adjustment inspection every 2,000 operating hours |
Brand
SEW-Transmission Equipment Company (German: Süddeutsche Elektromotoren-Werke) was founded in 1931. It is a multinational group specializing in the production of electric motors, reducers and variable frequency control equipment. Its production technology and market share are among the world's leaders, and it has significant influence in the field of international power transmission. The headquarters is located in Brucksel, Baden-Württemberg, Germany. The group has 17 manufacturing plants, 91 drive technology centers and sales and service offices around the world, with more than 23,000 employees. Its products cover power transmission equipment such as gear motors, servo drives, and industrial reducers. Its modular combination system achieves diversified technology combinations through standardized components, and provides effiDRIVE® energy-saving solutions and safetyDRIVE safety technology
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