The indicator light is a nice touch, and the whole unit feels truly heavy duty.
Lot of (3) Allied Controls Relay- T154X-179 – NEW – Free Shipping
A nice touch here is the Square D branding, which gives the relay a familiar, dependable look.
What stands out about OLS is the quiet click during switching and the steady release feel.
You can see the pin style relay right away, and it gives the unit a classic, familiar look.