MH Battery switch

onaquest...thank you for the info

A good replacement is the Intellitec Big Boy. They are expensive.
Big Boy

Personally I'm not a fan of White Rogers, I would look for another manufacture.

They are compatible (and interchangeable) with respect to all operating characteristics.

Current capabilities of the coils are identical.
Current capabilities of the contacts are identical.
Contact material (silver alloy) is identical.
Mounting bracket may be slightly different. (no big thing)

What IS different, are the small coil terminals.

The 105452 has either just a single terminal (with the other end of the coil grounded internally) or two terminals with one of the terminals externally grounded to the mounting bracket to provide the path to ground.

The 105752 has two isolated terminals for the pick coil. You will need to connect one terminal to your 12V pick signal and then connect the other to ground. If they are polarity sensitive, they will be marked.

the old out dated relay pt#.. specs will be listed in some old PAPER catalog
what they are saying is NO cross reference

you said "COIL"

the pt# you reference lists as a complete relay in this PDF http://www.stancor.com/pdfs/Catalog_2006/index2k5cat.pdf

ask them for the specs, contact rating, duty rating,
for this relay

i think you will be able to use it, as long as the contacts are 100amps or more
and its continuous duty

a coil is only part of a relay, and a "COIL" with a similar pt# , could be for an entirely different device

I would replace the complete unit rather then just the relay.
Battery disconnect White/Rogers

Amazon