Westinghouse 140D481G02RR secondary injection test (RR=factory modified for use with Digitrip microprocessor based trip units) set for DS, DSII, MagnumDS Breakers. Amptector trip units require no adaptor, Digitrip 500 thru 800 and 510 thru 910 require the 8779C02G03 adaptor, while the Digitrip 520 and 1150 require the 8779C02G04 adaptor.