Siemens HLXD63B500 Molded Case Circuit Breaker

Siemens HLXD63B500 SenSpeedfax molded‑case circuit breaker is a 3‑pole, 500 A low‑voltage protection device from the Sentron HLXD family, rated for 600 VAC and 500 VDC. It uses a thermal‑magnetic trip unit for both long‑time and instantaneous protection and carries a 35 kA interrupt rating at 600 V, making it suitable for demanding 3‑phase distribution in industrial settings. This bolt‑on MCCB is designed for unit‑mount installations and fits into Siemens P4 and P5 panelboards as well as Sentron switchboards. The enclosure dimensions are approximately 6.6 in L × 8.6 in W × 14.6 in H, and it is rated for 40°C ambient operation; lugs are not included with the breaker.