We've got a bank of elevators in a high-rise with sketchy power surges. I left the original overload relay in place as a backup, and it tripped during a spike last night. Prevented a motor burn-out for sure. Sometimes the old gear knows best, lmao.
These new bio-based lubricants seem to work just fine in our systems.
The mounting brackets on these things are often rusted from the inside out, so give them a good tap before trusting them.