The 5SP5291-7CC: The 440 V DC rating means this breaker is designed for DC circuits up to that voltage — common in photovoltaic arrays, battery banks, or DC bus distribution in industrial controls. The 2-pole construction breaks both lines in a DC circuit, giving full isolation.
Siemens 5SP5291-7CC MCB, 440V DC 10kA, 2-pole C 100A
MPN5SP5291-7CC
Siemens 5SP5291-7CC, miniature circuit-breaker, 440 V DC 10kA, 2-pole, C-curve, 100 A.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Product details
Frequently asked questions
What is 5SP5291-7CC used for?
It is a 2-pole miniature circuit breaker for 440 V DC circuits, rated 100 A with a 10 kA breaking capacity and C-curve trip characteristic. Typical applications include DC distribution in solar arrays, battery systems, and industrial control panels.
MPN
5SP5291-7CC