Siemens SENTRON 5SY4320-8 3-Pole D Curve Miniature Circuit Breaker

The Siemens 5SY4320-8 is a 3-pole miniature circuit breaker from the SENTRON 5SY4 series, featuring a Type D tripping characteristic. It operates at 400V with a 10kA breaking capacity. The D-curve is specifically designed for circuits with very high inrush currents, such as those found in motor starting applications.

This breaker is essential for protecting circuits with inductive loads that draw significant current for a short duration upon startup. Applications include motors, transformers, and heavy-duty machinery where rapid current surges are expected. The D-curve ensures reliable operation without premature tripping in these scenarios.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Siemens 5SY4320-8. We ensure authenticity and quality for all our industrial automation components, offering a dependable source for your critical parts needs.