SIEMENS 5SY4306-7CC: COMPACT THREE-POLE PROTECTION FOR INDUSTRIAL ELECTRICAL SYSTEMS

SIEMENS 5SY4306-7CC: COMPACT THREE-POLE PROTECTION FOR INDUSTRIAL ELECTRICAL SYSTEMS

Reliable circuit protection is essential for industrial control panels, machinery and commercial power-distribution systems. The Siemens 5SY4306-7CC miniature circuit breaker provides dependable overload and short-circuit protection in a compact DIN-rail format.

The product is commonly listed as 5SY4306-7CC, while the corresponding Siemens core article number is 5SY4306-7.

DESIGNED FOR THREE-PHASE CIRCUITS

The 5SY4306-7CC is a three-pole miniature circuit breaker with a rated current of 6 A and a Type C tripping characteristic.

Its three mechanically connected poles allow simultaneous switching and protection of three-phase circuits. The Type C characteristic is suitable for circuits with moderate inrush currents, including industrial control equipment, small motors, transformers, lighting systems and machinery.

KEY TECHNICAL FEATURES

Manufacturer: Siemens.

Product family: SENTRON 5SY4.

Product type: Miniature circuit breaker.

Article number: 5SY4306-7CC.

Siemens core article number: 5SY4306-7.

Number of poles: 3P.

Rated current: 6 A.

Tripping characteristic: Type C.

Rated operating voltage: 400 V AC.

Rated frequency: 50/60 Hz.

Rated breaking capacity according to EN 60898: 10 kA.

Breaking capacity according to IEC 60947-2: Up to 35 kA under the specified test conditions.

Rated insulation voltage: 440 V.

Energy-limiting class: Class 3.

Protection rating: IP20 with connected conductors.

Typical mechanical service life: 10,000 operating cycles.

Mounting method: Standard DIN rail.

Installation depth: Approximately 70 mm.

RELIABLE OVERLOAD AND SHORT-CIRCUIT PROTECTION

The thermal release protects connected conductors and equipment against sustained overload currents. The electromagnetic release responds rapidly to high short-circuit currents, helping isolate faults before serious damage can occur.

Its 10 kA rated breaking capacity according to EN 60898 makes the breaker suitable for many industrial and commercial distribution systems where higher fault-current protection is required.

COMPACT AND INSTALLATION-FRIENDLY DESIGN

The modular DIN-rail construction allows the breaker to be integrated easily into control cabinets, distribution boards and machine panels.

The three-pole configuration reduces installation complexity compared with using separate single-pole devices and ensures coordinated switching across all three phases.

TYPICAL APPLICATIONS

Industrial control cabinets.

Three-phase auxiliary circuits.

Small motors and transformers.

Machine-building equipment.

Automation and production systems.

Commercial power-distribution panels.

Lighting and heating circuits.

Pump and ventilation equipment.

PRODUCT BENEFITS

The Siemens 5SY4306-7CC combines compact construction, coordinated three-pole switching and reliable circuit protection.

Its Type C characteristic accommodates moderate startup currents while maintaining effective overload and short-circuit protection. The high breaking capacity, DIN-rail installation and Siemens SENTRON design make it a practical choice for professional electrical installations.

Before purchasing, confirm the complete article number, rated current, tripping characteristic, operating voltage, applicable standards and installation requirements.