You will find that the PLC-RSC-24UC/21 behaves consistently even in panels with modest heat and vibration.
Releco Series MR-C Relay, Model: C5-A30 DX Relay . New Old Stock. No Box
You will find that noting the RS-1M-SH in your log speeds up future repairs considerably.
People often mention Omron for consistent quality, and this unit lives up to that expectation.
What stands out about this relay is the Square D brand, a that sparks confidence for many pros.
What stands out about this unit is that it's a contactor relay, which makes handling high current much easier.
A nice touch is the smooth spring action inside this unbranded relay, which feels reliable without being too stiff.
Potter & Brumfield has a long reputation, and this relay shows that heritage in its straightforward design.
You will find that the Allen-Bradley brand is on this relay, which is reassuring.
A nice touch is the subtle DIANN insignia, which makes the relay feel well made without trying too hard.
You will find that DIANN is printed boldly on the unit, which helps when you are sorting parts.