Boltswitch first began producing switches in 1953 and have continued to improve their design and technology to keep up with increasing power demands and ever-changing technology. Boltswitch prides themselves on their commitment to safety and quality. They produce and release only the highest-quality switches, guaranteed to control the demands placed on your system without incident. Many of the switches are interchangeable with Westinghouse circuit breakers, giving you the most in versatility and durability.