DC-rated MCB for 440 V solar and EV infrastructure
The 2-pole design switches both the positive and negative lines, which is standard practice for ungrounded DC systems.
Degree of pollution 2, overvoltage category III. Sealable, halogen-free, silicon-free construction.
Listed as current production. The 5SL5210-7RC is a standard catalog item in the SENTRON portfolio, so documentation (RoHS, REACH, CE, UL, IEC) is available on request.
DC application constraints
For pure resistive DC loads, a B-curve may be preferred; for high-inrush transformer or capacitive loads, a D-curve would be more appropriate. The 5SL5210-7RC is specifically rated for DC voltage — verify polarity marking on the breaker as DC MCBs often have a preferred line/load orientation for arc extinction.