Siemens QSPD2A035B Surge Protection Device 120 240V

The Siemens BoltShield QSPD2A035B is a two-pole, 120/240V AC surge protection device engineered for indoor residential use. It delivers 35 kA surge protection per mode, is UL Type Designation SPD Type 1 (and suitable for Type 2 applications), and is configured for 1Ø 3W operation in a 120/240V single‑phase system. This 2P, QP-compatible module is designed to install in panels that accept Siemens QP-type breakers and ships with pre-wired #14 AWG conductors for quick, secure wiring. Its compact footprint measures 79.9 mm high, 65.3 mm wide, and 50.4 mm deep, and it includes a visible LED indicator to confirm protection status. The QSPD2A035B is sized for residential protection in a 120/240V, single‑phase, three‑wire arrangement, belonging to Siemens BoltShield’s line of plug‑in surge protection devices. The combination of its 2‑pole form factor, direct plug‑in design, and substantial 35 kA per‑mode/per‑phase rating makes it a focused solution for safeguarding downstream electronics, home theater setups, computers, and other sensitive appliances from transient voltage events on standard US residential service.