Siemens 5SY4325-6 Miniature Circuit Breaker 25 A 3-Pole B

The Siemens 5SY4325-6 is a high-quality miniature circuit breaker (MCB) designed for reliable protection of electrical installations. With a rated current of 25 A and 3 poles, this MCB ensures safe operation in commercial and industrial applications. Its B tripping characteristic makes it ideal for protecting circuits with resistive and small inductive loads.

Advantages

This MCB offers robust protection against overloads and short circuits, ensuring the safety of your electrical system. It is easy to install on DIN rails and complies with international standards, providing peace of mind and long-lasting performance.

Suitable for

• Protection of lighting circuits, socket outlets, and control panels
• Use in distribution boards and sub-distribution boards
• Commercial and industrial electrical installations

Key specifications

• Rated Current: 25 A
• Number of Poles: 3
• Tripping Characteristic: B
• Rated Voltage (AC): 400 V
• Rated Switching Capacity (Icn): 6 kA
• Frequency: 50/60 Hz
• Mounting Type: DIN Rail (EN 60715)
• Degree of Protection: IP20 (with connected conductors)
• Operating Temperature Range: -25 to +45 °C
• Storage Temperature Range: -40 to +75 °C
• Electrical Endurance: 10,000 switching cycles
• Mechanical Endurance: 20,000 switching cycles
• Terminal Type: Screw terminals
• Conductor Cross-section (Solid): 0.75 - 35 mm²
• Conductor Cross-section (Stranded): 0.75 - 25 mm²
• Energy Limiting Class: 3
• Pollution Degree: 3
• Overvoltage Category: III
• Insulation Voltage: 440 V
• Standards: IEC EN 60898-1

Recommendations

For optimal performance, ensure that the MCB is installed by a qualified electrician and that the connected load does not exceed the rated current. Regular testing is recommended to maintain safety.