Square D B3.70 Thermal Overload Heater Element – NOS, Genuine Square D Relay Part

Up for grabs is a genuine Square D thermal overload relay heater element, model B3.70.

This little guy is brand new old stock (NOS), meaning it's never been used and is still in its original, unopened packaging.

It's the real deal, not a generic knock-off, so you know it'll fit and function perfectly in your Square D relay setup.

Whether you're fixing up a motor starter or just want a reliable spare for your panel, this NOS unit is exactly what you need.

It comes as shown, ready to drop right in.

Check out the photos and condition notes—this is a solid piece of industrial control hardware that's been sitting on a shelf waiting for a good home.