Siemens JXD62B300 Molded Case Circuit Breaker

Siemens JXD62B300 Sentron molded‑case circuit breaker is a 2‑pole, 300 A protective device for 600 V AC circuits, designed to provide thermal‑magnetic overcurrent protection in industrial and commercial distribution panels and motor‑control applications. The unit is listed with a 25 kA interrupting rating at 600 V (some catalogs cite 35 kA at 480 V depending on version), making it suitable for feeders and equipment protection in demanding electrical environments. As part of the Sentron JXD family, this breaker is typically supplied with a non‑interchangeable trip and lugs not included, and is intended for bolt‑on mounting in ambient temperatures up to about 40°C. Applications include protecting feeders and motors in panelboards and industrial enclosures that require reliable two‑pole protection.