Schneider Electric 9001KA3 Push Button With Contact Block Screw Terminal

Schneider Electric's Square D 9001KA3 Harmony 30 mm Push Button Contact Block is a single normally closed (1NC) auxiliary module that attaches to Harmony 9001K and 9001SK push‑button operators to provide a dedicated NC contact in a compact 30 mm panel assembly. It uses screw‑clamp terminals for secure wiring and is designed with Fingersafe barriers, accommodating 0.22–2.5 mm² conductors. Rated up to 600 V and commonly cataloged at 3 A at 240 VAC (and around 550 mA at 125 VDC), this KA3 block is a rugged, maintenance‑friendly option for simple control circuits in automation panels. Compatible with Square D Harmony 9001K/K SK series, it’s a standard replacement or upgrade part for 30 mm push‑button systems and is stocked by major distributors including Newark, Mouser, Graybar, RS, and DigiKey.