It’s a contactor relay, and that extra muscle is a nice touch for powering larger devices safely.
1PC New IN BOX Siemens Contactor Relay 3RH2140-1BG40 FAST SHIPPING
You will find that calling it a contactor relay explains why it feels so robust in the hand.
You will find that the relay works well with common drivers, and that makes integration into hobby projects feel intuitive.
People often mention Omron for consistent quality, and this unit lives up to that expectation.
you will find that the Magnecraft RoHS brand is on the relay, and it feels like a dependable choice overall.
A nice touch is that it's a contactor relay, so it feels right at home in industrial setups.
When you compare options, you will find that a General-Electric relay fits the panel well.
This protection relay feels solid in the hand, and it works well in both small and larger builds.
The SEL branding is clear without being loud, which I appreciate when I am organizing components.