What is the best way of connecting LEM LAH 100-P to power lines. The power cable will have 50 to 60 amps. I am working with 4 gauge AWG wire. What are the connectors designed for? What kind of PCB or other medium could be best. We are prototyping now so how to best connect the wires? Is the only solution a lot of solder?
First of all elongate the PCB so the low voltage parts are away from the high-voltage side. Double-sided PCB with 2/2 oz copper pour, 90 mils thk, with thick tin/lead solder plating out each side of the 3 fat pins to a 1/4"/7mm hole.
You can use a crimp on ring terminal but with 4 awg THHN you may want to bolt in a set-screw lug for 4 awg wire. Use a 1/4-20 SS bolt or a metric equivalent.
4 awg is so stif it is better to let this assembly 'float' where the wire wants it to, and have a small gauge (22-26awg) multi-wire cable come from this enclosed assembly to its destination. The device outputs 50 mA with a 100 amp RMS input, hence the 1:2000 scale.
Slot cut the PCB .031" by 1.0" between the high voltage and low voltage sides to prevent creapage due to moisture and/or dust.
Use a 200 ohm 1% or .1 % load resistor to scale it as a voltage so that 100 amps AC equals 10 VAC output (+/-16 VDC), or 20 ohms to equal 1 VAC output, or +/- 1.6 VDC if DC input.