Differences between the BE.. brake and the BE.. brake/safety brake for EDR.. and EDRN.. explosion-protected motors

Depending on the design, the EDR.. and EDRN.. explosion-protected brakemotors fulfill the requirements for protection type "device protection by increased safety e" and "device dust ignition protection by housing t".

This ensures that the brakemotor neither sparks nor overheats in an unapproved manner during normal operation. To prevent the utilized brakemotor from becoming a source of ignition, several modifications have been made to the BE.. brakes.

Design changes:

• Operation of the brake coil at reduced power
• Design with reduced maximum braking torque
• Use of a modified seal system

Technical data for project planning:

• Reduced no-load starting frequency Z₀
• Reduced braking work for use as a working and holding brake
• Reduced limit speeds

Brake control:

• You must install the brake control in the control cabinet on the 3G, 3GD, 3G-c and 3GD-c designs.
• On the 3D, 3D-c, CID2, CIID2 and CICIID2 designs, the brake control can be located in the motor's terminal box.

• Comparing the designs