Same Day Shipping Siemens Q21525CT – 15/25/15A Triplex Miniature Circuit Breaker

Part of the QT series, this 4-pole triplex breaker delivers two 15A single-pole circuits alongside a 25A double-pole circuit. The compact footprint requires only two standard panel spaces, making it an excellent solution for residential upgrades where enclosure room is limited. This plug-on breaker installs into modern Siemens EQ, PL, ES, and Ultimate load centers. It effectively replaces the legacy MP21525 part number.