Techna Rocker Switch Circuit Breakers - Techna M1L05B1B23, This Techna M1 illuminated rocker switch offers a compact thermal circuit breaker in a rocker switch design, with illumination.By incorporating the M1 thermal circuit breaker into your system you can provide overload protection and On/Off switching using just a single component. This provides significant cost savings over using a separate rocker switch and circuit breaker combination. Techna M1L05B1B23 Illuminated Rocker Breaker 5A 250V Red