The IsoTrans 36 and 37 isolators are not only suitable as highly reliable isolators for normal applications, they also meet the most stringent requirements that can be set for electrical isolation. There is no need for power supply wiring. Voltages in the range from 250 to 1200 V DC can be converted into current signals up to 5 mA using a special loop-powered version of this isolator. As an example, this allows for easy checking of the contact wire voltage. Please contact us if you need detailed information on this special model.