SPECIFICATIONS
| Series | ER Series Electrically Released Brakes |
| Model | ER-650 |
| Function | Dynamic Braking / Dynamic Stopping Operations |
| Static Torque | 56 lb. ft. |
| Voltage DC | 90V |
| Maximum Speed | 3600 RPM |
| Mounting Style | Bulkhead Flange Mounted |
| Bore Size Range | .500″ to 1.375″ (Dodge #1310) |
| Mounting Options | Inside or Outside Mount |
| Total Weight | 13.2 lbs. |
| Component Parts | |
|---|---|
| Magnet & Armature Matched Set | Refer to Series Catalog |
| Inertia (Arm. & Carrier) | .106 lb.ft.² |
| Inertia (Hub) | .020 lb.ft.² |
| Bushing System | Dodge #1310 |
| Conduit Box | 5200-101-010 |
| Catalog | Warner Electric ER Series Catalog | |
| Service Parts | Warner Electric ER Series Service Parts |
PRODUCT DESCRIPTION
The Warner Electric ER-650 is a heavy-duty, bulkhead flange-mounted brake specifically designed for dynamic stopping operations. It is engineered to engage while the shaft is in motion, with a recommended speed of 100 RPM or greater at engagement. Using powerful permanent magnets, the ER-650 delivers a fail-safe braking force of 56 lb. ft. that automatically engages the moment power is removed.
FEATURES
- Automatic Wear Compensation: Eliminates the need for manual adjustment by automatically compensating for friction face wear.
- Fail-Safe Design: Reliable permanent magnets ensure the brake engages immediately upon power loss.
- Superior Heat Dissipation: The segmented armature design allows for high cycle rates and long service life in demanding environments.
- Pre-Burnished: Factory pre-burnishing ensures the unit reaches its full rated torque immediately upon installation.
- Installation Flexibility: Can be configured for either inside or outside mounting depending on your machine design.
SELECTION & ORDERING
- Verify Dynamic Use: Ensure the application requires stopping a moving shaft (ideally 100 RPM+).
- Analyze HP & Speed: Match your requirements using the Horsepower vs. Shaft Speed chart (ER-650 typically covers 1/2 to 3 HP depending on RPM).
- Specify Mounting: Determine if an inside or outside mount is required for the installation.
- Order Bushing: Specify bore size; the ER-650 requires a Dodge #1310 bushing (ordered separately).
- Select Control: Requires a control with a potentiometer to manage the brake channel output.
For applications with speeds below 100 RPM, please contact Warner Electric Application Support.





