Circuit Breaker Accessories

Siemens circuit breakers, with standard interrupting capacities, are designed to protect the sensitive components from excessive current flows causing overloads or short circuits. These devices feature feed-thru configuration which easily mounts into all kinds of panelboards and switchboards and are calibrated at an ambient temperature of 40 degrees C. They feature a thermal magnetic trip unit which delivers both long-time and instantaneous current limiting functions and are available in 500A, 600A and 800A current ratings on Raptor Supplies.

Siemens ND Series interrupt the current flow and protect downstream components from severe overload and short circuit conditions. These Sentron Series trip units feature a thermal magnetic trip for providing both instantaneous and long time current limiting protection. They are suitable for use with Siemens ND & HND molded case circuit breakers for maximum efficiency. These trip units feature a 3 pole design with ND-T type frame for added versatility and are voltage rated at 600V. ND Series trip units are available in 1000A & 1200A current ratings on Raptor Supplies.