The CRA160LSi-A is for standard 130V-class testing, while the CRA160LHi-A has 4×300V voltage channels, but they both use the same AC mains operation, the same 6×20A/3×40A current configuration, and the same 8kg chassis. The difference is open-circuit voltage headroom: 300V per channel gives significantly more margin for pushing test signals through long lead runs, higher-resistance connections, or relay applications that need a higher compliance voltage than 130V-class units provide. For engineers who've had a test set fall short on voltage margin mid-test, this is the spec worth checking before ordering rather than after. As with the LSi-A, current output is field-configurable between 6×20A and 3×40A. A depending on whether you're running one or two independent circuits. Exclusively available in India through Myriad Industrial Solutions LLP.