Siemens SENTRON 5SY4 MCB, 2P, 500mA, Type A, 400V AC, 72V DC, 35 kA Breaking Capacity

The Siemens Miniature Circuit Breaker is engineered to provide reliable protection for electrical installations operating at up to 400V. Designed with two poles and a tripping characteristic of class A, this device ensures optimal safety in varied environments, suitable for both industrial and infrastructural applications. Its compact dimensions allow for effortless installation on a DIN rail, making it a flexible solution for space-constrained environments. With a robust mechanical service life of 10,000 operating cycles, this circuit breaker demonstrates durability while maintaining essential performance under demanding conditions. Additionally, its power loss rating of just 1.9W at operational current enhances energy efficiency, promoting environmentally conscious operations. Ideal for safeguarding electrical circuits against overloads and short circuits, this circuit breaker exemplifies superior engineering and innovation.

Compact design enhances installation flexibility in tight spaces
Durable construction ensures longevity and reliable performance
Power loss of only 1--9W optimises energy consumption
Suitable for environmental conditions ranging from -40°C to 70°C
Complies with international safety standards for peace of mind
Designed for touch protection ensuring user safety during operation
Can accommodate a variety of conductor cross-sections for versatile connectivity
Environmentally conscious with an excellent global warming potential rating