NK AT1-010-120-TH AC Current Transducer, Base Terminals

AT/ATR-TH Series AC Current Transducer

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The AT/ATR-TH Series Current Transducers are the latest innovation for monitoring three-phase loads, motors, machines or buildings. The large triple-aperture solid-core design allows for a quick and easy installation. Just thread the conductors through the sensing windows (apertures) and reconnect on the other side. The transducer outputs are powered from an excitation voltage of 24 VAC or DC, or optionally 120 VAC, isolated from the monitored circuit. Three outputs are proportional to the AC current in each phase and a fourth represents the average of the three. Each are available at any time. The sensor mounts on a back panel or a DIN rail and is designed to accommodate wire sizes for loads up to 200 amps.
 

Wiring Schematic Diagram

Top View

Current Transducer Applications

Monitor Large Machines

• Detect over or under current conditions before they cause break downs or interlock one process with another.

Water Delivery and Treatment

• Detect open discharge lines.
• Sense clogged filters or blocked intake to pumps.
• Measure increased current to show failing bearings or pump impeller cavitation.

Generators

• Shed noncritical loads when demand reaches a set level.

Load Imbalance

• Monitor motor current draw which should be nearly equal in all three phases. A difference of 10% signifies trouble.

Current Transducer Features

Analog Signal Proportional to AC Current

• Both average responding and True RMS models available.
• Compatible with most automation and control systems.
• One output represents the current in each phase. A fourth produces a signal proportional to the average of the current in all three phases.

Externally Powered

• Simple and reliable connection.

Factory Calibrated and Warranted For Five Years

• Choice of ranges : 0-10 to 0-200 amps.
• Designed for longest life and reliability.

Solid-core Case

• Sensing windows provide ample space for single or multiple conductors per phase.

DIN Rail or Panel Mount

• Snap onto DIN rail or attach with screws to a panel for secure mounting.

Designed to meet UL, cUL and CE

• Accepted worldwide.

Submersible Pump Application

 

Submersible Pump Application

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Current Transducer Dimensions

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Current Transducer Connections

 

Current Transducer Dimensions

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