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Siemens 5SX4306-7 Circuit Breaker — 6A 3-Pole C-Curve

Siemens 5SX4306-7 Miniature Circuit Breaker

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ManufacturerSiemens

Part number5SX4306-7

Voltage 400V AC

Current 6A

Poles 3

Breaking Capacity 10kA

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3-pole protection Type C tripping 10kA breaking capacity 400V AC rating Miniature design Three-phase system protection

Product description

The Siemens 5SX4306-7 is a 3-pole miniature circuit breaker from the T55 series, engineered for reliable overcurrent protection in three-phase systems. It features a 400V AC rating, a robust 10kA breaking capacity, and a Type C tripping characteristic for its 6A current rating. This breaker is designed to protect equipment from short circuits and overloads.

This 3-pole circuit breaker is ideal for protecting three-phase motors, distribution circuits, and industrial machinery where simultaneous disconnection of all three phases is required for safety. The Type C tripping curve makes it suitable for loads with moderate inrush currents.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 5SX4306-7. We are committed to providing dependable components and efficient service to ensure your industrial operations run without interruption. Trust Stanlo Automation for your essential automation and electrical needs.

Technical specifications

Voltage	400V AC
Current	6A
Poles	3
Breaking Capacity	10kA
Tripping Characteristic	Type C
Series	T55

Common applications

Three-phase motor protection

Industrial machinery

Control panels

Power distribution systems

Manufacturing automation

Compatible systems

Standard DIN rail mounting Three-phase AC power systems Industrial control panels Motor control circuits

Also known as

Siemens T55 3-pole breaker 5SX4306-7 MCB Siemens 6A 3-phase breaker 3-pole C-curve 400V breaker

Replaces / compatible with

This breaker is a direct replacement for Siemens T55 series 3-pole circuit breakers with similar voltage, current, and tripping characteristics. Verify specifications for compatibility.

Technical note

Expert tip

For three-phase applications where high inrush currents are expected, consider breakers with a Type D tripping characteristic instead of Type C.

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Frequently asked questions

What is the significance of the 10kA breaking capacity on the Siemens 5SX4306-7?

The 10kA breaking capacity of the Siemens 5SX4306-7 indicates its ability to safely interrupt fault currents up to 10,000 amperes. This ensures the breaker can withstand and safely clear severe short circuits without causing damage to itself or the system.