Sir . . .Tee R'uh
O.K. . . . . . then, lets just win by default, by using the OMRON manufacturers Da-Da Sheet for that unit.
This identifies your bottom of unit terminals of interest . . . and as you can see . . . there is being one Hell of an ohmic difference between the different coils resistive specifications.
With my strongest suspicion, of the use of a relay with a 9-
12 or 15 Volt coil.
VERY surprised that yours was not stamped ,as my supplied examples pic was showing.
So o o o o . . . . . pull out ye olde tyme ohmmeter and see what your unit is being . . . . . . forbid an open coil . . . . but I expect your primary failure mode to be for that unit as having pitted, eroded and erratic contacts, with possible additional loss of tempering of those contacts support leaves.
Thaaaaaaaassssssssssssss-it . . . . . .
VISUAL REFERENCING . . . . .
View attachment 44030
73's de Edd
. . . . . . . . . . . .
NORMAL
Now what exactly is NORMAL?
It . . . . is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job that you need to pay for the clothes and the car, and the house, that you leave vacant all day, so that you can afford to lightly live in it.. . . . . sleep overnight . . . . in order to be able to . . . . . .