Siemens 5SL6306-7 Miniature Circuit Breaker 3P 6A C 6kA

The Siemens 5SL6306-7 is a 3-pole miniature circuit breaker from the SENTRON range, rated at 6 A with a type C tripping characteristic. Designed for AC distribution systems at 400 V, it delivers short-circuit protection with a breaking capacity of 6 kA to EN 60898 and IEC 60947-2.

Technical specifications:

• MLFB: 5SL6306-7
• Manufacturer: Siemens
• Product line: SENTRON
• Number of poles: 3 (3P)
• Tripping characteristic: C
• Rated current: 6 A at 30 °C; 5.64 A at 40 °C; 5.04 A at 55 °C
• Rated supply voltage: 400 V AC, 50/60 Hz
• Maximum AC operating voltage: 440 V (multi-phase)
• Maximum DC operating voltage: 62.5 V per pole
• Breaking capacity: 6 kA (EN 60898 / IEC 60947-2)
• Energy limitation class: 3
• IP rating: IP20 (with connected conductors)
• Overvoltage category: 3; degree of pollution: 2
• Mechanical service life: 10,000 operating cycles (typical)
• Power loss per pole: 0.7 W at rated current (AC, hot operating state)
• Conductor cross-section: 0.75 - 25 mm² (solid, stranded, or ferrule-terminated)
• Terminal tightening torque: 2.5 - 3 Nm
• Mounting: DIN rail, any orientation; modular width: 3 units
• Dimensions (WxHxD): 54 x 90 x 76 mm (installation depth: 70 mm)
• Weight: 389 g
• Operating temperature: -25 °C to 45 °C
• Storage temperature: -40 °C to 75 °C

Features and benefits:

• Halogen-free and silicon-free construction for use in sensitive environments
• Touch protection to IP20 with connected conductors fitted
• Sealable design prevents unauthorized switching or tampering
• Supplementary devices installable without rewiring
• Suitable for AC or DC circuits - mixed use is not permitted

Applications:

• Final circuit protection in residential and infrastructure distribution boards
• Overcurrent and short-circuit protection for 3-phase loads on DIN rail panels
• Switchgear assemblies requiring halogen-free or silicon-free certified components
• Installations where sealable overcurrent protection is specified

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

Also known as: Siemens 5SL6306-7, Siemens SENTRON 3-pole MCB C6, Siemens miniature circuit breaker 3P 6A C curve 6kA.