Siemens 5SY6310-7 Miniature Circuit Breaker, 3-Pole, C-Characteristic, 10A, 6kA

The Siemens 5SY6310-7 is a high-performance 3-pole miniature circuit breaker engineered to provide robust protection for electrical circuits in industrial and commercial environments. This device is designed to detect and interrupt overcurrents, effectively safeguarding electrical installations against the risks of overloads and short circuits. With its precise C-characteristic, it is optimized for applications with moderate inrush currents, ensuring reliable operation and enhanced safety for connected equipment in 400V electrical systems.

Advantages

This miniature circuit breaker stands out due to its high manufacturing quality and reliability, which are hallmarks of Siemens electrical components. The 3-pole design allows for simultaneous disconnection of all three phases, providing comprehensive protection for three-phase systems. Its 6kA breaking capacity ensures that the device can safely interrupt fault currents, preventing potential damage to wiring and connected devices. The compact design facilitates easy installation in standard distribution boards, while the C-characteristic offers a balanced response time suitable for a wide range of general-purpose electrical loads.

Suitable for

• Industrial electrical distribution systems
• Commercial building electrical panels
• Three-phase motor circuits
• Lighting systems with moderate inrush currents
• General power distribution in 400V networks

When it may not be suitable

This circuit breaker is not intended for use in systems exceeding its 400V voltage rating or in environments where fault currents consistently exceed the 6kA breaking capacity. It is also not suitable for applications requiring a B-characteristic for highly sensitive equipment or a D-characteristic for circuits with very high inrush currents, such as large transformers or heavy-duty motors.

Key specifications

• Number of poles: 3
• Rated current: 10A
• Tripping characteristic: C
• Breaking capacity: 6kA
• Rated voltage: 400V AC

How to use

The device is designed for mounting on a standard DIN rail within an electrical distribution board. Installation should be performed by a qualified electrician in accordance with local electrical codes and safety regulations. The wires are connected to the terminals, ensuring that the connections are tightened to the specified torque to prevent overheating. Once installed, the breaker is operated via the front-mounted toggle switch, which indicates the status of the circuit.

What to consider before purchase

• Verify that the 10A rated current matches the requirements of your circuit load.
• Ensure the 3-pole configuration is appropriate for your specific power supply system.
• Check that the 6kA breaking capacity is sufficient for the prospective short-circuit current at the installation point.
• Confirm compatibility with your existing DIN rail distribution enclosure.

Usage recommendations: Regularly inspect the circuit breaker for signs of thermal damage or loose connections. It is recommended to perform a functional test of the switching mechanism periodically to ensure continued reliability and safety of the electrical installation.