Our Bulletin 154 STC™ Starting Torque Controllers provide a cost-effective, soft-starting solution for low horsepower single- and three-phase squirrel cage induction motors. Our starting torque controllers help reduce mechanical and electrical stress on motor circuits and systems by limiting voltage at start-up. This avoids the over-torque and over-current conditions that happen when across-the-line circuits are completed, like when a basic motor control contactor closes.
The previous generation Starting Torque Controller is discontinued and no longer available for sale. This current Bulletin 154 Starting Torque Controller is an excellent replacement for the previous product.
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Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.