Motor Control

The TL device line of Starting Torque Limiters is designed for the soft start of 3-phase or single-phase motors, i.e., it allows smoother starting of all AC induction motors, thus decreasing shock and vibration problems encountered during across-the-line starts. The device is ramp-up time/torque adjustable from .5 – 5 seconds/0 – 85% of nominal starting torque.

Application Description

The TL line of torque limiters is designed for single-phase and 3-phase motor applications. It provides a reduction in the peak inrush a motor experiences during start-up. The torque limiter controls current on one of the three motor phases to control the torque being applied to the motor, allowing for smooth starting of a motor. The torque limiter is designed to be used with a Manual Motor Starter or a full voltage starter. These devices provide the necessary over-load protection for the motor and also provide line isolation for the motor. Short-circuit protection can be provided by fuses or circuit breakers.

Features

• Rated operational voltage up to 600V AC
• Adjustable ramp times (.5 – 5 seconds)
• Adjustable initial torque control (0 – 85%)
• Unlimited number of START/STOP operations per hour
• IP20 finger protection

Benefits

• Reduced wear on belts, gears, chains, clutches, shafts and bearings
• Compact design allows easy installation and smaller enclosures
• Less shock to product on conveyor lines and material handling gear

Standards and Certifications

• IEC 947 compliant n EN 60947-4-2
• CE marked
• CSA Certified
• UL Listed