I know grounds can share the same bus bar, but I didn’t think a ground and neutral.
Your terminology is incorrect.
Yes… a Neutral and a Ground can share a Bus Bar in a Service Panel, (Not a Sub-panel).
NO… a Neutral and a Ground CANNOT share a LUG in ANY panel.
NO… a Neutral CANNOT share a LUG with any other conductor on ANY Bus Bar.
EDIT… Yes… a Ground can share a Lug with one or more additional Ground conductors (depending on panel manufacturer), most commonly for a total of three conductors.
11 Likes
Speaking of terminology. A bus bar TERMINAL block is what you’re putting the wires inside and screwing a terminal screw down to hold the wire. A bus bar is a anything that conducts electricity. Bus bars can be flat, round, thin, fat, spirals, springy, etc. They are “busing” electricity from point A to point B.
Thanks for the clarification. Yeah my terminology on that one was garbage.
1 Like
An outside disconnect means grounds and neutral must be separated and bonding strip removed
1 Like
What if it is the service disconnect?
1 Like
I believe only 3 total grounding conductors under one lug
Exactly what a grounded conductor bus bar is doing. It provides a bonding point for multiple conductors all “Busing” electricity to the same designation. The terms can be synonymous although you might not call the A or B leg a terminal block is is essentially because it allows multiple circuit breaker terminations.
Everyone calls it a bus bar. When I think of a terminal block I think of a 110 punch block for a phone system.
Varies with Manufacturer!
Okay, I see your point… let me rephrase…
Better?
2 Likes
Okay since we’re all high on terminology busbar is one word. 
5 Likes
Sorry. I’m still trying to quit using “Buss Bar”! 
2 Likes
I think I will start calling it the electrical choo choo, that should eliminate any ambiguity besides, busses are for proles.
1 Like
If You spend too much time in the bar You better take the bus home,
4 Likes
Home was 2 blocks away. I could always stumble my way there. Those three steps to the front porch were a killer though.
1 Like
Can a neutral and ground share the same busbar in a sub panel that has a service disconnect?
Short answer - NO!
1 Like
I agree with Bob. NO!
Is the service disconnect ahead of the sub-panel? How many conductors are in the feeder 3 or 4?
Neutral and a Ground conductor can share a Busbar in a Service Panel.
I think NEC (NFPA 70) Article 250.30 (5).