Siemens Q230N Two-Pole Molded Case Circuit Breaker

Siemens Q230N is a two-pole molded-case circuit breaker (MCCB) rated for 30 A at 120/240 V AC, designed for plug-in installation with a fixed thermal-magnetic trip and plug-mounting hardware for easy drop-in integration into Siemens QP/MP panel systems. It carries a 10 kA interrupt rating at 120/240 VAC, providing robust short-circuit protection for typical residential and light commercial feeders, and it accepts copper conductors in the 14–6 AWG range. The compact unit measures about 3 in long by 3 in wide by 2 in high, and its fixed-trip design means no field adjustments are required, making it a reliable choice for circuits up to 30 A in standard load centers.