What is the pass criteria for the busbar contact resistance?

crutschow

Joined Mar 14, 2008
28,215
That's like asking, what is the voltage of a battery.
Need more info about the busbar and what contact you are referring to.
 

sdowney717

Joined Jul 18, 2012
705
Contact wire connections between a wired lug and the buss bar should be very low ohms, like 0.1 ohms or less, low enough to not be measurable by most meters is what I think. You can have a good connection, if the metals are clean and the screw is tight and the lug is well secured to the wire. Certainly should not get too warm warm when current is flowing, resistance creates heat, And the wires and buss should be well sized for the current flow.
 
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