Brake Motors by Sainath Agencies

Introduction
Brake Motor is combination of an AC Induction Motor and Electromagnetic DC brake. DC supply is fed to the brake from a rectifier unit installed in the motor terminal box. The brake is disc type and is mounted on the motor shaft. The brake is ‘Fail proof Type’ i.e. brake comes into action and stops the driven equipment instantly when the power to the motor is switched off or / if power fails. The supply to the rectifier is fed from any two terminals of the main terminal box . Havells with its AEG technology, state-ofart plant and automatic processing can offer zero-defect Brake Motors in frames 63 to 160, in 2P, 4P, 6P and 8P versions.

Operation: 
Under ‘OFF’ power condition Brake springs keep the Brake Liner pressed against the mounting flange thus preventing the rotation of the motor shaft. When power is switched on, the Brake coil gets energized through the Rectifier unit. It instantly attracts the armature disc by overcoming the spring force. This results in releasing of the brake rotor allowing the motor to rotate . In the event of power failure / switch of mode, the brake coil gets de-energised. This results in the springs pressing the brake liner against mounting flange, i.e. returning armature disc to its original position. This results in instantaneous braking of rotor. Fail safe condition is thus ensured. 

Applicable Standard
IS 325
IEC 34
BS 4999
IS 1231
IS 2223 

Special Features:

• The brake motors are simple, rugged easy for maintenance.
• No separate DC supply is required as the rectifier is provided, which gives the required DC voltage for energisation of the brake 
• The rectifier is mounted inside the main terminal box so no separate terminal box required.
• Special brake liner is used which ensures, the braking torque value remains quite stable through out the use. 

Applications:
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
• Cable Reeling Drums
• Rolling Mills
• Elevators
• Conveyers, etc