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Siemens 4NC5122-0CE20 Window Current Transformer — 200 A/1 A, 5 VA

Siemens 4NC5122-0CE20 window-type current transformer.

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ManufacturerSiemens

Part number4NC5122-0CE20

Primary Current 200 A

Secondary Current 1 A

VA Rating 5 VA

Accuracy Class 1

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Veteran-owned

CAGE: 9NK75

Window-Type Design Easy Retrofitting 200 A/1 A Ratio 5 VA Burden Class 1 Accuracy High Current Measurement

Product description

The Siemens 4NC5122-0CE20 is a high-performance window-type current transformer designed for accurately measuring larger primary currents. It features a primary current rating of 200 A and a secondary output of 1 A, with a burden capacity of 5 VA. This transformer adheres to Class 1 accuracy standards, ensuring precise measurements for demanding industrial applications.

This window CT facilitates easy installation on existing conductors without interrupting power flow, making it ideal for upgrades or maintenance. It is commonly employed in heavy industrial facilities, power distribution systems, and large motor applications for precise current monitoring, control, and protection.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 4NC5122-0CE20. We are dedicated to providing reliable, quality components and exceptional service, ensuring your operational continuity and project success.

Technical specifications

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

Common applications

Heavy Industry

Power Distribution

Motor Control

Substation Automation

Energy Management

Compatible systems

Digital panel meters PLC analog inputs Protective relays

Also known as

Siemens 200A/1A CT Siemens Window Transformer

Replaces / compatible with

This current transformer is suitable for applications requiring a 200A primary measurement with a 1A secondary output for high-precision metering or protection.

Technical note

Expert tip

The 1A secondary output is ideal for direct input into sensitive digital meters or PLCs requiring low current signals.

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Frequently asked questions

What is the primary current rating and secondary output of the Siemens 4NC5122-0CE20 current transformer?

The Siemens 4NC5122-0CE20 current transformer has a primary rating of 200 Amps and provides a secondary output of 1 Amp. It offers a 5 VA burden capacity and is rated to Class 1 accuracy.