Siemens Q3100H Miniature Circuit Breaker

The Siemens Q3100H Miniature Circuit Breaker is a 100-amp, 3-pole protective device intended for 240-volt AC circuits, providing overload and short-circuit protection in three-phase distribution setups. This model is UL-listed for frequent switching (SWD) applications and is part of Siemens' QP MiniBreaker family, designed to be installed in compatible Siemens panelboards and load centers for reliable, fast replacement of circuit protection components. Key considerations include ensuring the panel is designed to accept QP-style mini-breakers and confirming correct termination and mounting in a 3-pole arrangement, with the 240V operating voltage and 100A current rating matching the circuit requirements. The compact design and standardized form factor of the Q3100H support simplified upgrades and maintenance in commercial, industrial, or residential electrical systems.