Always disconnect power– by shutting off circuit breakers or removing fuses–before connecting the power lines to the Panel Meter.


Connect each Panel Meter power input screw terminal block to the appropriate phase; also connect ground and neutral.


NOTE: It is not necessary for the power inputs to be connected to the same branch circuit as the load being monitored so long as the phase voltages are the same.

Model RD77720 Only

Strip or trim the power wires to expose ¼” (6mm) of bare wire and connect them to the four-position screw terminal block labeled, “Phase A”, “Phase B”, “Phase C” and “Neutral”.

Apply power to the Panel Meter and verify the LEDs light correctly.


NOTE: Verify the power wires are secured to each of the four positioned screw terminal block by pulling on them. If the voltage wires become loose, simply strip or trim the wires a longer and repeat.

Model RD77724 Only

Route the one end of the power wire to the appropriate circuit breaker or fuse.

Route the other end of the power wire to the Panel Meter through the punched out knock out hole.

Using a wire nut (included), secure the power wire according to the appropriate lines.

NOTE: Ensure you match the appropriate power wire to the corresponding power wires on the Panel Meter. 

Phase A = Black Wire

Phase B = Red Wire

Phase C = Blue Wire

Neutral = White wire


Note: Jetlun recommends wiring the power leads (18AWG) to a 14 AWG power leads directly to a fuse breaker that is no larger than 15A. If you decide to use other sized wires, please ensure you are using the correct sized wire nut and fuse breaker. Make sure to conceal all leads through the conduit between the Panel Meter and the electrical panel. The CT wire and the power leads can be fitted in the same conduit.