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Siemens 5SY4220-5 Miniature Circuit Breaker — 2-Pole, Type A, 20A

Siemens 5SY4220-5 2-pole miniature circuit breaker.

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ManufacturerSiemens

Part number5SY4220-5

Rated Voltage 400V AC

Breaking Capacity 10kA

Poles 2

Tripping Characteristic Type A

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2-pole protection Type A tripping curve High breaking capacity (10kA) 400V AC rating Compact 70mm depth Siemens quality

Product description

The Siemens 5SY4220-5 is a 2-pole miniature circuit breaker designed for overcurrent protection. It features a Type A tripping characteristic, a rated voltage of 400V AC, and a breaking capacity of 10kA. With a rated current of 20A and a depth of 70mm, this breaker ensures reliable circuit interruption.

This circuit breaker is suitable for various industrial and commercial applications, including protecting electrical circuits in control panels, machinery, and distribution boards. It is commonly used in sectors such as manufacturing, building automation, and power distribution where precise overcurrent protection is essential.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 5SY4220-5 for your industrial automation needs. We provide reliable access to quality surplus components, ensuring you can maintain and repair your existing systems efficiently and cost-effectively.

Technical specifications

Rated Voltage	400V AC
Breaking Capacity	10kA
Poles	2
Tripping Characteristic	Type A
Rated Current	20A
Depth	70mm
Series	5SY4

Common applications

Industrial control panels

Machinery protection

Power distribution

Building automation

Electrical safety

Manufacturing equipment

Compatible systems

Standard DIN rail mounting systems Siemens industrial control systems

Also known as

Siemens 5SY4220-5 MCB Siemens 2-pole breaker 20A 5SY4 Type A 20A breaker

Replaces / compatible with

The Siemens 5SY4220-5 is a direct replacement for older Siemens breakers with the same specifications and form factor within the 5SY4 series. It is designed to fit standard DIN rail installations.

Technical note

Expert tip

Ensure proper torque is applied to the terminal screws according to Siemens guidelines to prevent overheating and ensure reliable connection.

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Frequently asked questions

What is the breaking capacity of the Siemens 5SY4220-5 miniature circuit breaker?

The Siemens 5SY4220-5 miniature circuit breaker has a breaking capacity of 10kA (kiloamperes). This rating indicates its ability to safely interrupt fault currents, protecting electrical systems from damage.