will these work on the Federal Pioneer version

They are mechanically compatible with Federal Pioneer equipment. Federal Pacific and Pioneer were essentially the same breaker line with two names for different markets. However these are specifically listed replacements for Federal Pacific only and not Federal Pioneer so they could get flagged if you need to pass some kind of inspection or approval.

Will this breaker work in the FP L 124-40 panel?

Thank you for this inquiry! I did a little research and to answer your question, YES that UBIF260N should work inside that FR L 124-40 panel. That panel number looks to be an older-style Federal Pacific panel part number. These UBIFs are, currently, the NEWEST REPLACEMENTS for the Type NA, which should fit inside that panel as well. As you can well imagine, each panel is different, but I think it is safe to say that if you purchase that UBIF from Amazon, it should work just fine for you. And if it does not fit, Amazon provides one of the BEST Return Policies to ever exist. Thank you, once again, for this inquiry and if you have any additional questions, please feel free to contact us. Thank you! Paul Levis JRL Electric Supply, Inc. 800-743-1851

will this work for panel L120-30

I have no idea. It was an exact fit replacement for the old Stab-Lok breaker that had failed. The shape and spacing of the electrical contacts were identical and it fit in the panel exactly as the original did.

Brand	Connecticut Electric
Current Rating	60 Amps
Voltage	240 Volts
Circuit Breaker Type	Standard
Mounting Type	Plug-In Mount
Number Of Poles	2
Product Dimensions	2"D x 3.36"W x 2.55"H
Manufacturer	Connecticut Electric
Part Number	UBIF260N
Item Weight	8 ounces
Country of Origin	China
Item model number	UBIF260N
Is Discontinued By Manufacturer	No
Size	60 Amp
Item Package Quantity	1
Included Components	Breaker
Batteries Included?	No
Batteries Required?	No
Warranty Description	5 Years

Connecticut ElectricUBIF260N-New Federal Pacific Stab-Lok NA260 Replacement. Two Pole 60 Amp Thick Series Manufactured

Description

Specifications

Common Questions