Basler Electric ACA2500-14UC – Precision AC Current Transducer

The Basler Electric ACA2500-14UC (also referred to as ACA250014UC) is a compact, high‑accuracy alternating current transducer designed to convert primary AC current into a standard 4‑20 mA DC signal or a 0‑10 V DC output. This device is widely used in power monitoring, load shedding, and generator excitation systems where precise current measurement is essential.

Technical Specifications

The transducer features a built‑in current transformer input with a nominal rating of 2500 A, accommodating a wide dynamic range. Its true‑RMS measuring circuit ensures accurate readings even in the presence of harmonics and distorted waveforms. The output is linearly proportional to the input current, with a response time of less than 300 ms. The unit is powered from a standard 120/240 V AC supply or an optional DC source.

• Primary current rating: 2500 A AC (extendable with external CTs)

• Output options: 4–20 mA (loop powered) or 0–10 V DC

• Accuracy: ±0.5% of full scale

• Frequency range: 45–65 Hz

• Burden: < 0.5 VA at rated input

• Isolation: 2500 V AC between input and output

• Enclosure: Polycarbonate, IP40, panel or DIN‑rail mount

• Operating temperature: –20 °C to +60 °C

Primary Applications

In generator control panels, the ACA2500-14UC provides a clean analog signal to voltage regulators, protective relays, and SCADA systems, enabling load sharing and reactive power control. It is also used in energy management systems for load profiling and demand monitoring. The transducer’s high linearity and low phase shift make it suitable for revenue metering applications.

Installation and Calibration

The device is mounted via a standard 35 mm DIN rail or with screws. Wiring is simplified through clearly labelled terminals for AC input, power supply, and output. A front‑panel potentiometer allows zero and span adjustments to compensate for system offsets. The sealed construction protects against dust and moisture, ensuring long‑term stability.

Reliability and Compliance

Basler Electric’s ACA series transducers are manufactured using quality components and conformal‑coated circuit boards for enhanced durability. They comply with IEC 60688 and IEEE C57.13 standards for instrument transformers and transducers. The ACA2500-14UC is a trusted solution for accurate, repeatable current measurement in demanding industrial environments.

In summary, the Basler Electric ACA2500-14UC current transducer offers precise, isolated current‑to‑signal conversion, making it an indispensable component for modern power monitoring and control systems.