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Siemens 4NC5222-2CE20 Window-Type Current Transformer — 200 A/5 A, 5 VA

Siemens 4NC5222-2CE20 window-type current transformer.

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ManufacturerSiemens

Part number4NC5222-2CE20

Primary Current 200 A

Secondary Current 5 A

VA Rating 5 VA

Accuracy Class 1

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Veteran-owned

CAGE: 9NK75

Window-Type Design Easy Installation 200 A/5 A Ratio 5 VA Burden Class 1 Accuracy For Monitoring & Protection

Product description

The Siemens 4NC5222-2CE20 is a window-type current transformer engineered for convenient installation and accurate current measurement in industrial applications. It allows a conductor to pass through its aperture for easy retrofitting. This transformer has a primary to secondary current ratio of 200 A/5 A and a burden capacity of 5 VA, suitable for Class 1 accuracy requirements.

This window-type CT is widely used in switchgear, motor control centers, and electrical distribution panels where space is a consideration or when existing installations need to be modified without interrupting service. It is ideal for powering ammeters, energy meters, and protection relays.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation components, offers the Siemens 4NC5222-2CE20. We are committed to providing quality, reliable parts and excellent customer service to support your operational needs and keep your systems running efficiently.

Technical specifications

Primary Current	200 A
Secondary Current	5 A
VA Rating	5 VA
Accuracy Class	1
Type	Window-Type Current Transformer

Common applications

Switchgear

Motor Control Centers

Distribution Panels

Industrial Automation

Power Monitoring

Compatible systems

Analog ammeters Motor protection relays Data acquisition systems

Also known as

Siemens 200A/5A CT Siemens Window Current Transformer

Replaces / compatible with

This current transformer is suitable for applications needing a 200A primary measurement with a 5A secondary output, commonly used with 5A-input ammeters.

Technical note

Expert tip

The 5A secondary output is compatible with standard analog ammeters and older protection relays designed for this common current transformer output.

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Frequently asked questions

What is the primary-to-secondary current ratio for the Siemens 4NC5222-2CE20 window-type current transformer?

The Siemens 4NC5222-2CE20 window-type current transformer has a primary current rating of 200 Amps and a secondary current output of 5 Amps. It features a 5 VA burden and is rated to Class 1 accuracy.