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Siemens 5SX2-210-8 Circuit Breaker - 2-Pole, 10A

Siemens 5SX2-210-8 2-Pole Circuit Breaker

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ManufacturerSiemens

Part number5SX2-210-8

Poles 2

Current Rating 10A

Voltage 400V

Breaking Capacity 6kA

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2-pole configuration Type D tripping characteristic 6kA interrupting capacity 400V operational voltage Suitable for inductive loads High inrush current handling

Product description

The Siemens 5SX2-210-8 is a 2-pole miniature circuit breaker designed for 400V systems, featuring a Type D tripping characteristic and a 6kA breaking capacity. This 10A rated breaker is ideal for protecting circuits with significant inrush currents.

This circuit breaker is commonly used for safeguarding three-phase motors, transformers, and other inductive loads that require protection against overloads and short circuits, especially where high startup currents are a factor. The 6kA rating offers a substantial level of fault protection.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, offers the Siemens 5SX2-210-8. We are dedicated to providing quality components and efficient service to keep your operations running smoothly. Partner with Stanlo Automation for reliable industrial parts.

Technical specifications

Poles	2
Current Rating	10A
Voltage	400V
Breaking Capacity	6kA
Tripping Curve	D
Series	5SX2

Common applications

Three-phase motor protection

Transformer circuits

Industrial machinery

Automation systems

Control panels

Power distribution

Compatible systems

2-pole AC circuits Standard DIN rail mounting Industrial power distribution and control

Also known as

Siemens 5SX2 10A 2-pole breaker 400V 6kA D-curve Siemens MCB 5SX2-210-8 industrial protection

Replaces / compatible with

The Siemens 5SX2-210-8 is a modern 2-pole miniature circuit breaker designed to replace older models with similar technical specifications, ensuring compliance with current safety standards.

Technical note

Expert tip

When installing the Siemens 5SX2-210-8 in 400V 2-pole circuits, verify the correct connection of both live conductors to ensure complete isolation during fault conditions.

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Frequently asked questions

What is the advantage of using a Type D breaker like the Siemens 5SX2-210-8 for motor protection?

The Type D tripping curve of the Siemens 5SX2-210-8 allows it to withstand very high inrush currents, typically 10 to 20 times the rated current, which occur when motors start. This prevents nuisance tripping while still providing protection against severe short circuits.