We tested this NEMA34 closed loop stepper motor system-hybrid servo kit 1128 oz-in ( KL-8080L&KL34-8N-1000L) for a customer with 60VDC power supply. Product Link: https://www.automationtechnologiesinc.com/products-page/nema34-closed-loop-stepper-motor-system-hybrid-servo-kit/nema34-closed-loop-stepper-motor-system-hybrid-servo-kit-1128-oz-in-kl-8080lkl34-8n-1000l https://www.automationtechnologiesinc.com/products-page/switching-power-supply/60v10a-switching-cnc-power-supply-for-110vac