What does feed through lugs mean?

What does feed through lugs mean?

Feed-thru lugs: 1. Always mounted opposite of the main. 2. Used on main lug or main breaker panels.

What is the difference between sub feed lugs and feed through lugs?

Feed through lugs accomplish the same function as sub feed lugs, but the connection layout is different: The feeder circuit is connected normally to the top of the first load center, using main lugs or a main breaker.

What does Main lugs only mean?

Main lug only load centers are typically applied downstream of a main circuit breaker panel and are often referred to as a sub panel. For main lug only load centers, the incoming cables are terminated on the line side of the lugs that are attached directly to the bus, no main overcurrent device exists within the panel.

What is a Subfeed breaker?

“Sub feed lugs are for Main Lug Only panels and are located at the main end of the panel. Thru Feed Lugs are typically for Main Breaker panels and are located at the end of the panel opposite the main breaker.”

What is the difference between a load center and a sub panel?

A load center provides similar functionality in a power distribution system as a switchboard and a panelboard. Panelboards are typically deeper than load centers and can accommodate both bolt-on circuit breakers as well as plug-in breakers, whereas a load center is limited to plug-in breakers.

What are electrical panel lugs?

Main lug units are primarily used as a distribution panel where there is a main breaker upstream in the system. There are situations where a back fed circuit breaker and a retainer clip (required by NEC®) are used to convert a main lug load center to a main breaker load center.

What is feed through panel?

Usually when I use the term Feed Through I mean that the second panel is hot tapped (no breaker) from feed through lugs that are factory installed on the first panel buss. Two onehundred amp panels could be used this way on only one 100 amp service. This setup does not give you any more power, just more breaker spaces.

What is a main lug load center?

load center. A main lug type load center does not have a main circuit breaker. The incoming supply cables are connected directly to the main lugs and bus bars. Main lug units are primarily used as a distribution panel where there is a main breaker upstream in the system.

What does it mean to feed through lugs?

Feed through is a term to indicate there are lugs at the bottom of a buss that are connected to the main. So you can have a 200 amp panel with a main, 12 spaces and you can feed out if it at 200 amps. I use these to feed trailer houses. If you have lugs rated for both wires i do not see the problem.

Can a lug panel be fed through lugs?

The panel was ordered with feed through lugs on the busses. My co-worker thinks you could feed a 200 amp main lug panel off of the feed through lugs because the main breaker in the first panel protects the second panel.

Do you have to disconnect feed thru lug?

NOTE: For I-LINE panels, upon selecting a Feed-thru lug kit (SL frame), you must enter the upstream disconnect if the application is Main Lug and Fully Rated. Feed-Thru Lugs are not available on the following configurations:

Is the 200 amp breaker feed through lugs code compliant?

The 200 amp breaker protects the panelboard buss and whatever is connected to the feed through lugs. The panel is UL listed with the feed through lugs and is code compliant. I’ve got an ongoing disagreement with a co-worker.