ACREL AKH-0.66 G-40ii Split Core Current Transformer
ACREL AKH-0.66 G-40ii Split Core Current Transformer is a low voltage current transformer designed for use with electrical measuring instruments. It has a clamshell body with a transparent polycarbonate flip cover, so the secondary lead wiring stays visible and easy to check during installation.
ACREL AKH-0.66 G-40ii Split Core Current Transformer is a 0.66kV rated split core current transformer from Acrel's AKH-0.66-G series, built for through-bus or through-cable mounting on electrical switchboards and measuring panels.
How it works
- The G-40II takes a primary current passing through its window and produces a proportional secondary current output, based on the rated current ratio selected.
- It mounts around a bus bar or cable rather than being wired in series, using its clamshell opening design.
- The clear polycarbonate flip allows the secondary lead wiring to be checked visually without needing to open the housing further.
Why choose this product
- It's built specifically for pairing with electrical measuring instruments, so it suits panels where current monitoring or metering is already part of the design.
- The clamshell design makes it straightforward to fit around existing bus bar or cabling, without disconnecting the primary circuit.
- It's part of Acrel's established AKH-0.66-G range, with a documented technical datasheet covering ratios, accuracy classes and mounting dimensions.
Benefits
- Straightforward installation around bus bar or cable, using type C mounting (fixed by straight piece).
- Multiple current ratio options within the G-40II range, so it can be matched to different load levels.
- Suited to environments with a wide ambient temperature range, as set out in the specifications below.


