Siemens 5SL6350-7 Miniature Circuit Breaker 3P 50A C 6kA 400V

The Siemens 5SL6350-7 (MLFB: 5SL6350-7) is a SENTRON 3-pole miniature circuit breaker rated 50 A with C tripping characteristic, designed for AC supply voltages up to 400 V and a breaking capacity of 6 kA. It provides overcurrent and short-circuit protection in residential and infrastructure applications, with energy limitation class 3 for downstream equipment protection.

Technical specifications:

• MLFB: 5SL6350-7
• Manufacturer: Siemens
• Product line: SENTRON
• Product type: Miniature circuit breaker
• Number of poles: 3 (3P)
• Tripping characteristic: C
• Rated current: 50 A at 30 °C / 46.97 A at 40 °C / 42.01 A at 55 °C
• Rated voltage (AC): 400 V, 50/60 Hz
• Maximum operating voltage (multi-phase AC): 440 V
• Maximum operating voltage (DC per pole): 62.5 V
• Breaking capacity: 6 kA (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 (rated current, hot state): 3.8 W
• Connectable conductor cross-section: 0.75 - 25 mm² (solid, stranded, finely stranded with ferrule)
• Tightening torque: 2.5 - 3 N·m
• Dimensions (W x H x D): 54 x 90 x 76 mm
• Installation depth: 70 mm
• Modular width units: 3
• Net weight: 479 g
• Operating temperature: -25 °C to +45 °C
• Storage temperature: -40 °C to +75 °C
• Mounting position: any

Features and benefits:

• Halogen-free construction for reduced toxic emissions in case of fire
• Silicon-free design suitable for sensitive paint shop and coating environments
• Sealable to prevent unauthorised tampering after installation
• Touch protection (IP20) for operator safety with connected conductors
• Compatible with supplementary devices for extended functionality
• Mechanical service life of 10,000 operating cycles

Applications:

• Final circuit protection in residential buildings and public infrastructure
• Motor circuit protection where C characteristic suits moderate inrush currents
• Distribution boards and consumer units on 400 V three-phase systems
• DIN rail installations requiring flexible conductor cross-section compatibility

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

Also known as: Siemens 5SL6350-7, SENTRON miniature circuit breaker 3P 50A C curve.