We had an enquiry from a customer who needed to duplicate a 4~20mA process signal into two separate isolated outputs, running off wide-range AC or DC auxiliary power. The ADtek AT-PR covers this, and this particular listing, AT-PR2-A5-DD-ADH, is a specific pre-configured build: dual output, 4~20mA input, both outputs 4~20mA, with an 85~264VAC / 100~300VDC auxiliary power range.
This looks simple, but the AT-PR’s part number encodes the full configuration. ADtek builds this 17.5mm DIN rail converter to order from an order code – output loop (single or dual), input range, output 1 signal, output 2 signal, and auxiliary power. The “2” means dual output, “A5” means the input is 4~20mA, the two “D”s mean both outputs are 4~20mA, and “ADH” means the wide-range auxiliary power (85~264VAC or 100~300VDC). If you need a different input range, a voltage output instead of current, or a narrower auxiliary supply, that would be a different part number.
In actual application, the AT series converter/distributor is designed for general signal conversion and isolation – 4~20mA, 0~10V, RTD (Pt100Ω), load cell, potentiometer, and AC voltage/current, across the range. It gives you dual isolated signal outputs or a 24V excitation supply for a transmitter, with LED indicators for power, input, and output status, and removable terminal blocks for easy on-site wiring. 0.1% accuracy is available as an option. CE approved and RoHS compliant.
From our experience, before we quote this, we would normally confirm you need exactly this configuration – dual 4~20mA output on wide-range auxiliary power – since a different input, output signal, or power range changes the part number. Hope this helps.




