Siemens Sentron 5SY4 MCB, C curve, 3-pole, 10kA capacity, 6A Part number 5SY4306-7

Product Overview

The Siemens 5SY4306-7 is a SENTRON miniature circuit breaker in a 3-pole configuration rated at 6 A with a C-characteristic tripping curve. It is designed for industrial applications demanding small footprint, high switching capacity and reliable protection of three-phase loads.

Key Features

• 3-pole miniature circuit breaker (3P) for three-phase protection
• Rated current: 6 A
• Tripping characteristic: Curve C — suitable for general load protection
• Breaking capacity: up to 10 kA under EN 60898 and up to 35 kA under IEC 60947-2
• Compact installation depth: approx. 70 mm
• Connectable conductor cross-section: solid up to 35 mm², stranded up to 35 mm², finely-stranded up to 25 mm²
• Screw-type terminals with tightening torque range approx. 2.5 … 3.5 N·m
• Suitable for any mounting position; mechanical service life approx. 10,000 cycles typical

Technical Specifications

• Article Number: 5SY4306-7
• Number of Poles: 3 (3P)
• Rated Current (Ie): 6 A at AC rated value
• Rated Insulation Voltage (Ui): 440 V AC
• Rated Operational Voltage: 400 V AC (for multi-phase operation)
• Tripping Curve: C
• Breaking Capacity (Icn): 10 kA (EN 60898) / up to 35 kA (IEC 60947-2)
• Width / Mounting Units: 3 modules (54 mm width)
• Installation Depth: ~70 mm
• Ambient Operating Temperature: −40 °C … +70 °C
• Ambient Storage Temperature: −40 °C … +75 °C
• Net Weight: approx. 458 g

Compliance & Certifications

• Manufactured under Siemens SENTRON quality and reliability standards
• Complies with IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 standards
• Halogen-free and silicon-free design for enhanced safety and environmental compliance

Applications

The 5SY4306-7 is suited for protecting three-phase industrial equipment, motor circuits, power distribution boards, and control cabinets where a 6 A protective device is appropriate and compact modular dimensions are required. Its high breaking capacity makes it suitable for industrial loads with significant fault current potential.