“AC FAIL SAFE BRAKE MOTOR- FLANGE MOUNTED Brake Motors are offered for various applications requiring almost instantaneous stopping of driven load. These motors are offered in frame sizes 71 to 132M. Their operation is of ‘fail safe’ type, i.e., the brake is applied when, power to the motor is switched off, or, if power failure occurs.
Features:
- Fail safe Brake (Electro Magnetic Disc Barke)are normally in the applied (braking) condition. When electric supply is given, the brake is released and the shaft free to rotate. In case of power failure or cut off, the brake is instantaneously applied thus preventing accidents.
- Fail-safe brakes are brakes that, by nature, are always engaged unless otherwise activated. In essence, “fail-safe” signifies that a brake disengages (allowing motion) when power or pressure to the brake is turned on and engages (restrains against motion) when the power is turned off.
- Being simple and rugged – in construction., these motors need very little maintenance.
- No separate DC supply is necessary for brake coil energisation, because a rectifier unit is provided. The rectifier is open type and fixed between the two terminals inside the terminal box. Being open type, it ensures good heat dissipation and is very easy to replace. Varistor is provided across the DC terminals to protect the brake coil and rectifier against line and switching surges. Special brake liner is used, which ensures that,
- the braking torque value remains quite stable throughout the use. Compensation for liner wear is easily done by advancing the position of the fan by tightening the castle nut at the non-drive end. The design of brake motor facilitates a very easy replacement of armature disc and brake liner assembly.
Range | 0.5HP to 10HP |
RPM | 2800 RPM(2 POLE), 1440 RPM (4 POLE), 960 RPM (6POLE), 750 RPM (8POLE) |
Mounting | B3(Foot) construction |
Frame | 71F to 132M |
Insulation | Class F / Class H |
Degree of Protection | IP 55 |
Voltage | 415V |
Frequency | 50HZ |
Ambient Temperature | 50°C |
Type of Enclosures | Totally Enclosed Fan clsoed (TEFC) / TE |
Application:
Brake Motors are used for numerous applications. A few of them are listed below : Textile Machinery
- Machine Tools
- Printing Machine
- Cranes and Hoists
- Material Handling Equipments
- Leather Processing Machines
- Geared Motors
- Cable Reeling Drums
- Rolling Mills