Description
The Siemens SENTRON 5SY4203-8 is a high-performance 2-pole Miniature Circuit Breaker (MCB) engineered for reliable overcurrent and short-circuit protection. This Siemens 5SY4203-8 unit is rated for 3A and features a Curve D tripping characteristic, which is specifically designed to handle high inrush currents commonly found in inductive loads like motors and transformers.
Designed for versatility, the Siemens 5SY4203-8 is suitable for operation at 400V AC and 72V DC. It boasts an impressive 10 kA breaking capacity, ensuring it can safely and effectively interrupt fault currents, thereby protecting electrical installations from damage and preventing hazards. The robust tripping mechanism of the Siemens 5SY4203-8 offers enhanced safety.
This MCB is an essential component for applications requiring protection against surges, such as in motor control circuits, power supplies, and areas with sensitive electronic equipment. Its 2-pole design ensures complete isolation of both phase and neutral conductors. The Siemens 5SY4203-8 provides crucial safety for demanding electrical systems.
Opt for the Siemens SENTRON 5SY4203-8 for a premium and dependable circuit protection solution. Its specific Curve D characteristic and high breaking capacity make it an excellent choice for protecting circuits with significant inrush current demands.







