NK ATS-420-SDT-120-DL - AC Current Transducer, ATS Series

• Full scale range = combination (switch and transducer)
• Output signal = 4-20 mA (note: maximum output depends on setpoint)
• Contact type = SPDT relay
• Power supply = 120 VAC
• Case style = solid-core, DIN rail mounting

The ATS Series AC Current Sensors combine a current operated switch and transducer into a single package for use in AC current applications up to 1200 A. The large sensing window provides complete isolation between the primary circuit and the controls. The DIN rail mounting makes installation a breeze, and provides a very secure mounting that is resistant to conductor movement.

AC Current Transducer Applications

Large AC Motor Loads

• Produces an analog signal at all times to detect increases or decreases in current.
• Provides limit alarm contacts for over or undercurrent conditions.
• Extra large aperture allows for single or multiple conductor passage.

• Allows a viewer to see the amount of current used at any time when connected to a standard panel meter.

• Measure the AC current produced or consumed.
• Detect mechanical problems before failure occurs.

AC Current Transducer Features

Easily Established Relay Actuation Point

• Patented rotary switch setpoint selection.
• Trip point indicated on the labeling.

• Output is magnetically isolated from the input for safety.
• Eliminates insertion losses, no added burden.

• 4-20 mA signal proportional to 0-1200 AC A.
• Reduces components by combining transducer and limit alarm (current switch).
• Analog signal powered from the sensor; no loop powered required.

• Integral DIN rail mount with spring loaded mounting clips.
• Makes installation a snap.

• Single Pole Double Throw Relay changes state with power to the sensor.
• LED indication if power is removed from the sensor or primary current exceeds the adjustable trip point.
• Field-adjustable time delay from 0.5 to 12 seconds.

• Accepted worldwide.

AC Current Transducer Connections

AC Current Transducer Output Type

Single pole, double throw relay-adjustable from 10 to 1200 A in 10 A increments. 4-20 mA signal proportional to 0-1200 A. Analog signal capped at 6 mA when trip point <150 A, 8 mA if trip point <300 A, 23 mA if the trip point is 310 or higher.

AC Current Transducer Ordering Information

Sample Model Number: ATS-420-SDT-24D-DL

Solid-core AC current operated switch / transducer combination, 0-1200 A range, 4-20 mA analog output, 24 VDC powered, adjustable relay trip point.