The Eaton SD1-D-PV is a molded-case circuit breaker designed for residential, commercial and light-industrial applications. It is UL and CSA recognized and IEC rated up to 1000 V AC from 20 to 125 amperes. The SD1-D-PV breaker is designed to provide overcurrent protection for high-efficiency systems, as well as for many other applications for use as switchgear, air conditioners, and other appliances. The breaker utilizes a trip unit that contains a current-sensing circuit with switchable thresholds, so the device can be used as either a two-pole or three-pole breaker. An integral power-line filter reduces the negative effects of incoming line noise. Trip free mechanisms and plug-in wire terminals make the device simple to install, while the separated cases help eliminate heat transfer and reduce hold-down forces. The breaker boasts an easy to operate handle, captive tripped indicator, one-time-only line lug installation, and a shallow base depth for easier mounting.