ME544

Category: .

4-channel Power Supply for 2-wire Transmitters

ME544 has four galvanically isolated supply channels for 2-wire transmitters.
The output voltage for each channel is 25 VDC.
Each channel is short-circuit protected and has a current limitation to protect measurement circuits from damage caused by short circuits or other faults.
ME544 cuts the risk for measurement errors caused by earth potential differences with a number of 2-wire transmitters in the same measurement system.

  • 4 galvanically isolated supply channels for 2-wire transmitters
  • 25 V stabilized supply voltage
  • Short-circuit safe
  • Current limited to ~35 mA
  • Available for AC or DC power supply
  • Compact mounting on DIN rail
  • Plug-in screw terminals

Technical Specification

Supply channel 1 to 4
Voltage ~25 VDC stabilized, short circuit protected
Current limitation ~35 mA
Maximum ripple 5 mV eff.
Operation temperature -20 to +60 °C/-4 to +140 °F
Galvanic isolation
Between channel 1-4 1500 VAC, 1 min
AC power supply to channel 1-4 2500 VAC, 1 min
DC power supply to channel 1-4 1500 VAC, 1 min
Power supply
AC versions 230 VAC, -15..+10 %, 45..75 Hz
115 VAC, -15..+10 %, 45..75 Hz
DC version 19 to 60 VDC
Connections Plug-in terminals Stranded, ≤ 2.5 mm2, AWG 14
Mounting Rail acc. to DIN EN 50022, 35 mm

Documentation