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Siemens 5SX21-C2 Miniature Circuit Breaker - 16A, Type B

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ManufacturerSiemens

Part number5SX21-C2

Rated Current 16A

Tripping Characteristic Type B

Rated Voltage 230/400V AC

Poles 1

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Veteran-owned

CAGE: 9NK75

Compact design Type B tripping curve Overcurrent and short-circuit protection High breaking capacity DIN rail mounting Reliable Siemens quality

Product description

The Siemens 5SX21-C2 is a miniature circuit breaker designed for reliable overcurrent protection in electrical installations. It features a Type B tripping characteristic, making it suitable for protecting circuits with low inrush currents, such as lighting and socket outlets. With a rated current of 16A and a rated voltage of 230/400V AC, it offers robust safety for various applications.

This circuit breaker is commonly used in residential, commercial, and industrial settings to safeguard electrical systems against short circuits and overloads. Its compact design allows for easy installation in standard distribution boards and enclosures, ensuring a safe and efficient electrical infrastructure.

Source your Siemens 5SX21-C2 from Stanlo Automation, a veteran-owned distributor committed to providing high-quality surplus industrial parts. We ensure product availability and reliable service for your automation needs.

Technical specifications

Rated Current	16A
Tripping Characteristic	Type B
Rated Voltage	230/400V AC
Poles	1
Breaking Capacity	6kA
Frequency	50/60Hz
Mounting	DIN Rail

Common applications

Residential distribution boards

Commercial electrical panels

Lighting circuits

Socket outlet protection

Small machinery protection

General purpose overload protection

Compatible systems

Standard distribution boards MCB enclosures Electrical panels

Also known as

Siemens 5SX21 C2 Siemens 16A Type B breaker 5SX21 series breaker

Replaces / compatible with

This part is a standard Siemens miniature circuit breaker. For specific replacement compatibility, consult the Siemens technical documentation.

Technical note

Expert tip

Ensure proper termination and torque settings on the terminals to maintain safety and performance.

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Frequently asked questions

What is the tripping characteristic of the Siemens 5SX21-C2?

The Siemens 5SX21-C2 features a Type B tripping characteristic. This means it trips between 3 to 5 times the rated current, making it ideal for circuits with low inductive loads and sensitive equipment.