Chauvin Arnoux P01120470 50A DC Current Clamp For Use CA 6292. The Chauvin Arnoux current clamp can be used to measure the current flowing in a cable without opening the circuit. It also serves to isolate the user from the dangerous voltages in the circuit. This current clamp can be used to measure currents up to 50A DC. It is powered by the CA 6292 to which it is connected.