Dc-dc converters deliver 20kVdc isolation

SAGER ELECTRONICS RECOM Power RHV2 and RHV3 series of dc-dc converters provide improved high 20kVdc isolation in a compact SIP16 case. With input voltages available at 5, 12 or 24Vdc and output voltages at 5V, 12V, 24V, ±5V or ±12V, the operating temperatures of the RHV2 & RHV3 series are -40○C to 85○C without derating. Both product series are suitable for applications including x-ray equipment, high vacuum monitoring, HVAC dust extraction systems and other high voltage industrial applications where very high isolation remote power supply is required. 

click here for more info