Siemens 5SL6325-6 Miniature Circuit Breaker 3P 25A B 6kA 400V

The Siemens 5SL6325-6 (MLFB: 5SL6325-6) is a SENTRON 3-pole miniature circuit breaker rated 25A with a B tripping characteristic and 6kA breaking capacity at 400V AC. Designed for overload and short-circuit protection, it is suitable for residential buildings and infrastructure applications.

Technical specifications:

• MLFB: 5SL6325-6
• Manufacturer: Siemens
• Product line: SENTRON
• Product type: Miniature circuit breaker
• Number of poles: 3 (3P)
• Tripping characteristic: Class B
• Rated current: 25A (at 30°C); 23.79A (at 40°C); 21.85A (at 55°C)
• Supply voltage: 400V AC, 50/60Hz
• Max operating voltage: 440V AC (multi-phase); 62.5V DC per pole
• Breaking capacity: 6kA (EN 60898 / IEC 60947-2)
• Energy limitation class: 3
• Overvoltage category: 3
• Degree of pollution: 2
• IP rating: IP20 (with connected conductors)
• Power loss per pole: 2.8W
• Conductor cross-section (solid/stranded/finely stranded): 0.75 - 25mm²
• Tightening torque: 2.5 - 3Nm
• Dimensions (WxHxD): 54 x 90 x 76mm; installation depth 70mm
• Modular width: 3 units
• Weight: 390.8g
• Operating temperature: -25°C to +45°C
• Storage temperature: -40°C to +75°C
• Mounting position: any

Features and benefits:

• Touch protection for safe handling during installation
• Halogen-free and silicon-free construction
• Sealable design to prevent unauthorised adjustment
• Compatible with supplementary add-on devices
• Mechanical service life of 10,000 operating cycles
• Suitable for AC and DC circuits (not mixed use)

Applications:

• Final circuit protection in residential buildings and infrastructure installations
• DIN rail distribution boards requiring 3-pole overcurrent protection
• Consumer unit and panel board protection up to 25A
• Industrial control cabinet branch circuit protection at 400V AC

Compliant with EN 60898 and IEC 60947-2. Part of the Siemens SENTRON range.

Also known as: Siemens 5SL6325-6, SENTRON 3-pole MCB 25A B-curve.