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Feeder Circuit Data

What is Feeder Circuit Compliance and where is it applicable?

The feeder circuit is the primary power input that delivers power throughout the panel. In the past, the UL508A standard only required "RECOGNIZED" terminal blocks to be used in this circuit. But today, UL has updated their standards to require "LISTED" power distribution blocks with increased spacing to be used.

Feeder and Branch Circuit Requirements

TRADITIONAL SPACING

all power blocks were "RECOGNIZED"

LONG TERM SOLUTIONS

Our 134, 135 or EPB series provide a "LISTED", cost effective solution for feeder circuit compliance.

Power Blocks - Splicer/Distribution
Amps Catalog # Poles (X) MATERIAL LINE SIDE LOAD SIDE Feeder Circuit Compliant Per UL508 Datasheets
Insulator Conn. Wire Range
AWG / kcmil		 Connector
Openings / Pole		 Wire Range
AWG / kcmil		 Connector
Openings / Pole
175 1343580 3 Plastic AL 2/0 - #14 1 #4 - #14 6 Yes Datasheet
200 1343570 3 Plastic AL 3/0 - #14 1 #2 - #14 4 Yes Datasheet
1343572 3 Plastic AL 3/0 - #14 1 3/0 - #14 1 Yes Datasheet
1343548 3 Plastic AL 3/0 - #14 1 (2) #2 - #14
(6) #6 - #14		 8 Yes Datasheet
310 1343582 3 Plastic AL 350 - #6 1 350 - #6 1 Yes Datasheet
134x554 1/2/3 Plastic AL 350 - #6 1 2/0 - #14 2 Yes Datasheet
335 1343553 3 Plastic AL 400 - #6 1 #2 - #14 6 Yes Datasheet
350 134x305 1/2/3 Plastic AL 2/0 - #14 2 2/0 - #14 2 Yes Datasheet
1343555 3 Plastic AL 2/0 - #14 2 #4 - #14 6 Yes Datasheet
134x955 1/2/3 Plastic AL 2/0 - #14 2 #4 - #14 6 Yes Datasheet
420 1343588 3 Plastic AL 600 - #2 1 (6) #2 - #14
(3) 1/0 - #14		 9 Yes Datasheet
1343585 3 Plastic AL 600 - #2 1 #2 - #14 8 Yes Datasheet
1343595 3 Plastic AL 600 - #2 1 #4 - #14 12 Yes Datasheet
135x601 1/2/3 Plastic AL 600 - #2 1 #6 - #14 24 Yes Datasheet
134x360 1/2/3 Plastic ALa 600 - #2 1 600 - #2 1 Yes Datasheet
134x516 1/2/3 -- AL 600 - #2 1 (6) #2 - #14
(3) 1/0 - #14		 9 Yes Datasheet
475 135x701 1/2/3 Plastic AL 750 - 1/0 1 750 - 1/0 1 Yes Datasheet
510 1343596 3 Plastic AL 250 - 6 2 #4 - #14 12 Yes Datasheet
1343597 3 Plastic AL 250 - 6 2 #2 - #14 8 Yes Datasheet
620 134x526 1/2/3 Plastic AL 350 - 4 2 #4 - #14 12 Yes Datasheet
134x350 1/2/3 Plastic AL 350 - 4 2 #4 - #14 12 Yes Datasheet
950 135x605 1/2/3 Plastic AL 600 - #2 2 350 - 4 4 Yes Datasheet
135x702 1/2/3 Plastic AL 750 - 1/0 2 750 - 1/0 2 Yes Datasheet
135x703 1/2/3 Plastic AL 750 - 1/0 2 250 - #6 6 Yes Datasheet
135x704 1/2/3 Plastic AL 750 - 1/0 2 2/0 - #14 10 Yes Datasheet
135x705 1/2/3 Plastic AL 750 - 1/0 2 #2 - #14
250 - #6		 12/3 Yes Datasheet
135x706 1/2/3 Plastic AL 750 - 1/0 2 #2 - #14
250 - #6		 4/5 Yes Datasheet
135x707 1/2/3 Plastic AL 750 - 1/0 2 #2 - #14
3/0 - #6		 12/4 Yes Datasheet
135x708 1/2/3 Plastic AL 750 - 1/0 2 3/0 - #6 8 Yes Datasheet