Siemens 3KD4630-0QE20-0 SENTRON 3KD 630A 3P 690V Center-Drive Switch Disconnector

The Siemens 3KD4630-0QE20-0 is a SENTRON 3KD series fuseless switch disconnector rated at 630A and 690V AC, configured as a 3-pole unit with center-drive actuation. Designed for isolation and load-switching duties in industrial distribution panels, the 3KD4630-0QE20-0 carries no integrated fuse element, placing overcurrent protection upstream in the circuit architecture.

Technical Specifications

Certifications & Standards

• CE

Applications & Use Cases

At 630A and 690V, the 3KD4630-0QE20-0 suits main incoming isolation on motor control centers, machine tool panels, and industrial distribution boards where load-break switching at high current is required. The center-drive mechanism allows door-interlocked handle coupling without offset linkages, simplifying enclosure integration. Because it carries no built-in fuse, the upstream protection device — typically an MCCB or ACB — must be rated to clear the prospective fault current at the installation point.