Wire binding screw for lug kit AL175JD. What is the larger wire binding screw for in AL250JD, for smaller wire range of 4 - 4/0 Al or Cu?
Wire binding screw (WBS) for lug kit AL175JD. What is the larger wire binding screw for in AL250JD, for smaller wire range of 4 - 4/0 Al or Cu?
Powerpact J frame
Digest 176 page 7-23 says in a note for the J frame breaker: "AL250JD wire range is 3/0 AWG–350 kcmil Al or Cu. For smaller wire range (4–4/0 AWG Al or Cu), replace the lug’s wire binding screws with the larger binding screws provided."
S1A59551 is the part number for the WBS for lug kit AL175JD it is a set of 3 for a set of 6 use S1A59552. And this is also the part number for the WBS mentioned in the digest note above which installs in AL250JD lug to acheive smaller wire range of 4-4/0 Al or Cu.