Siemens 5SL6125-7 Miniature Circuit Breaker 1P 25A C 6kA

The Siemens 5SL6125-7 (MLFB: 5SL6125-7) is a 1-pole SENTRON miniature circuit breaker rated 25A with tripping characteristic C and a breaking capacity of 6kA to EN 60898 and IEC 60947-2. Designed for residential and infrastructure applications, it provides overload and short-circuit protection on 230/400V AC installations.

Technical specifications:

• MLFB: 5SL6125-7
• Manufacturer: Siemens
• Product line: SENTRON
• Product type: Miniature circuit breaker
• Number of poles: 1
• Tripping characteristic: C
• Rated current at 30°C: 25A
• Rated current at 40°C: 23.48A
• Rated current at 55°C: 21A
• Supply voltage (AC): 400V, 50/60Hz
• Max operating voltage (multi-phase AC): 440V
• Max operating voltage (DC): 62.5V per pole
• Insulation voltage (single-phase AC): 250V
• Insulation voltage (multi-phase AC): 440V
• Breaking capacity (EN 60898 / IEC 60947-2): 6kA
• Energy limitation class: 3
• Power loss at rated current: 2.6W per pole
• Protection class: IP20 (with connected conductors)
• Overvoltage category: 3
• Degree of pollution: 2
• Connectable conductor cross-section: 0.75-25mm² (solid, stranded, finely stranded)
• Screw terminal tightening torque: 2.5-3Nm
• Dimensions (WxHxD): 18 x 90 x 76mm
• Installation depth: 70mm
• Modular width: 1 module
• Net weight: 130g
• Operating temperature: -25°C to +45°C
• Storage temperature: -40°C to +75°C
• Mechanical service life: 10,000 operating cycles
• Mounting: Any position, DIN rail

Features and benefits:

• Touch protection built in (finger-safe design)
• Halogen-free and silicon-free construction
• Sealable for tamper protection
• Supplementary devices can be added (auxiliary contacts, shunt trip, etc.)
• Suitable for both AC and DC circuits (not mixed use)
• 1-module wide, saving space in distribution boards

Applications:

• Final circuit protection in residential distribution boards
• Infrastructure and commercial building installations
• Overload and short-circuit protection for lighting and socket circuits
• DIN rail mounted panel assemblies requiring compact 1-pole protection
• Installations requiring DC circuit protection up to 62.5V per pole

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

Also known as: Siemens 5SL6125-7, Siemens SENTRON 1P 25A MCB, Siemens miniature circuit breaker 25A C curve.