Medical AC/DC power supplies can be paralleled

They deliver 650W with forced-air cooling (750W peak) or 400W with free-air natural convection cooling (650W peak) and feature less than 500mW no-load power consumption.

There are 12, 24 and 48V variants, each with a 12V fan output and 5V standby. All can continuously deliver full output power across a wide range of -40 to +50°C, and to up to +80°C with derating.

The medical supplies have an isolation of 4,000V AC (input to output) or 1,500V AC (input to PE; output to PE). They are Type BF ready, for powering equipment where there is conductive contact with the patient, but not the heart (such as ultrasound monitors, blood pressure monitors, incubators, ECG equipment and operating tables). 

Where an application requires more power, the active current share facility uses a signal wire to interlink two or more power supplies in parallel to increase output current capability. The built-in PMBus interface provides digital communication via the PMBus command protocol with control and monitoring functions for voltage, current, temperature and the reporting of fault conditions.

All supplies are less than 1U high and available in U-channel, open-frame and enclosed end-fan options (open-frame and enclosed end-fan options are currently available on the 12V model). The unit’s built-in 61000-3-2 compliant active power factor correction and Class B EMI filter deliver an EMI/RFI performance to Level B (conducted), Level B (radiated with cover).