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Siemens 3UF1850-3AA00 3-Phase Current Transformer for Contactors

Siemens 3-Phase Current Transformer, 130A/1A, 0.1VA for Contactor Mounting.

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ManufacturerSiemens

Part number3UF1850-3AA00

Type 3-Phase Current Transformer

Primary Current 130 A

Secondary Current 1 A

Power Rating 0.1 VA

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3-Phase Measurement Contactor Mounting Capability Stand-alone Installation Accurate Current Transformation 0.1 VA Power Rating 130A/1A Ratio

Product description

The Siemens 3UF1850-3AA00 is a 3-phase current transformer designed for both contactor mounting and stand-alone installation. It has a current rating of 130 Amps primary to 1 Amp secondary, with a power rating of 0.1 VA. This transformer is essential for accurately measuring or monitoring high currents in industrial electrical systems.

This current transformer is commonly used in conjunction with protection relays, meters, and control systems where a scaled-down representation of the primary current is required. Its robust design ensures reliable performance in industrial environments.

Source your Siemens 3UF1850-3AA00 current transformers from Stanlo Automation, a veteran-owned surplus distributor. We provide quality components with dependable service for your industrial automation needs.

Technical specifications

Type	3-Phase Current Transformer
Primary Current	130 A
Secondary Current	1 A
Power Rating	0.1 VA
Mounting	Contactor Mount & Stand-alone
Manufacturer	Siemens

Common applications

Motor Protection

Power Monitoring

Metering

Electrical Safety Systems

Industrial Power Distribution

Compatible systems

Contactor mounting systems Industrial meters Protection relays

Also known as

Siemens 3UF1850 3-Phase Current Transformer Contactor Mount CT

Replaces / compatible with

This current transformer is designed to interface with various Siemens contactors and protection relays. Please verify mounting dimensions and current ratings for direct replacement applications.

Technical note

Expert tip

Ensure the primary conductor passes through the center aperture of the transformer for accurate current measurement.

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Frequently asked questions

What is the VA rating of the Siemens 3UF1850-3AA00 current transformer?

The Siemens 3UF1850-3AA00 current transformer has a power rating of 0.1 VA. This indicates the apparent power that the secondary winding can deliver to the connected load while maintaining accuracy.