Siemens 5SY4306-7 Miniature Circuit Breaker 3P C6A 10kA

The Siemens 5SY4306-7 is a 3-pole miniature circuit breaker from the SENTRON range, rated 6 A with a type C tripping characteristic. It provides overcurrent and short-circuit protection on 230/400V AC systems with a breaking capacity of 10 kA per EN 60898-1. Suitable for infrastructure and industrial applications.

Technical specifications:

• MLFB: 5SY4306-7
• Manufacturer: Siemens
• Product line: SENTRON
• Number of poles: 3 (3P)
• Tripping characteristic: C
• Rated current: 6 A
• Rated voltage: 400V AC (multi-phase), 230V AC (single-phase), 60 V DC
• Insulation voltage (Ui): 440 V AC
• Breaking capacity: 10 kA (EN 60898-1), 35 kA (IEC 60947-2 AC), 15 kA (IEC 60947-2 DC), 5 kA (UL 1077 / CSA C22.2 No.235)
• Energy limitation class: 3
• I-tripping setting current: 8x In
• Power loss: 1.6 W per pole
• IP rating: IP20, with connected conductors
• Overvoltage category: 3, pollution degree: 3
• Operating temperature: -40 °C to 70 °C
• Storage temperature: -40 °C to 75 °C
• Mounting: DIN rail, any position
• Mechanical service life: 10,000 operating cycles
• Conductor cross-section: 0.75-35 mm² (solid/stranded), up to 25 mm² (finely stranded)
• Tightening torque: 2.5-3.5 N·m
• Dimensions (WxHxD): 54 x 90 x 76 mm, installation depth 70 mm
• Modular width units: 3
• Weight: 454.5 g
• Standards: IEC/EN 60898-1, IEC/EN 60947-2/UL1077

Features and benefits:

• Touch protection (IP20) with connected conductors for safe handling in live panels
• Halogen-free construction
• Silicon-free construction
• Sealable design to prevent unauthorised adjustment
• Accepts installable supplementary devices such as auxiliary and fault signal contacts
• Qualifies as a main switch per EN 60204-1
• Any mounting position for flexible enclosure layout
• Maritime application test certificate available from Siemens

Applications:

• Overcurrent and short-circuit protection in distribution boards and control panels
• Three-phase 400V AC circuit protection
• DIN rail mounting in industrial and infrastructure installations
• Circuits requiring a type C characteristic (inductive loads such as motors, transformers and lighting with high inrush)
• Main switch duty per EN 60204-1

Compliant with IEC/EN 60898-1, IEC/EN 60947-2/UL1077. Part of the Siemens SENTRON range.

Also known as: Siemens 5SY4306-7, SENTRON MCB 3P C6A 10kA.