Siemens NSB HHED63B040 Molded Case Circuit Breaker

Siemens Sentron HHED63B040 molded‑case circuit breaker is a 40 A, three‑pole MCCB in the HHED frame, rated for up to 600 V AC and designed for thermal‑magnetic protection on 3‑phase distribution circuits. The catalog entry HHED63B040 confirms a 1–3‑pole configuration with a 40 A rating, and Siemens’ frame documentation places this device squarely in the 600 V AC class for use in industrial power distributions. A lug‑terminal variant is listed as HHED63B040L, and some retailers describe this model as bolt‑on with load‑side lug terminals for certain configurations. As part of the Siemens Sentron MCCB family, HHED63B040 is intended to protect feeders and branch circuits in commercial and light‑industrial panels, offering a compact, modular solution within the same family of molded‑case breakers.