Siemens 5SY4310-6 Three-Pole Miniature Circuit Breaker

The Siemens 5SY4310-6 is a three‑pole, molded‑case SENTRON miniature circuit breaker rated for 400 V AC with a 10 kA short‑circuit breaking capacity and a nominal current of 10 A, designed to protect three‑phase circuits in electrical distribution panels while maintaining a compact 70 mm depth. It uses a Type B (overcurrent) trip characteristic for predictable response to moderate overloads, and weighs about 0.439 kg, with product data listing a 3P configuration and D=70 mm depth. As part of the 5SY4 family, the 5SY4310-6 offers up to 10,000 mechanical switching cycles, making it suitable for commercial or light‑industrial installations where reliable, repeated protection of three‑phase circuits is required.