ACREL AKH-0.66 G-30i Low Voltage Current Transformer

The ACREL AKH-0.66 G-30i Low Voltage Current Transformer is built for measuring alternating current on low voltage busbars and cables. It forms part of Acrel's AKH-0.66/G high precision metering range, and is commonly paired with energy meters and power monitoring instruments in switchboards and electrical distribution sets.

How it works

• The transformer clamps around a busbar or cable, using electromagnetic induction to step down the primary current to a proportional secondary current output (for example, ratios such as 100A/5A).
• The clamshell body opens on a hinge, so the CT can be fitted around an existing conductor without disconnecting it at the ends.
• The transparent polycarbonate flip cover allows the secondary lead wiring to be seen clearly during installation and inspection.
• Secondary output feeds into a compatible energy meter or measuring instrument, which converts the current signal into a usable reading.

Why choose this product

• Sourced from a manufacturer with published, CE-certified documentation and a defined accuracy standard (GB 20840.2-2014).
• Available across a wide range of current ratios (10A/5A through to 400A/5A) within the G-30I size, so it can be matched to the actual load rather than oversized or undersized.
• Suited to metering applications requiring 0.2 or 0.5S accuracy class, which is a step up from basic protection-grade CTs.
• Compact outline (62mm x 78mm x 45mm) makes it a practical fit inside standard switchboard and distribution enclosures.

Benefits

• Clear wiring visibility through the polycarbonate cover reduces installation errors.
• Class 0.2 and 0.5S accuracy options support both general metering and higher precision measurement needs.
• Rated for AC 0.66kV operation, matching standard low voltage distribution systems.
• Designed to GB 20840.2-2014 and verified under JJG313-2010, giving a documented basis for accuracy.