This feels like an Audiopipe product, with the brand showing up in expected places.
Absolute Process Instruments API 1020 G SAFETY Relay API1020G
A nice touch is how the relay resists minor vibration, so bench tests stay predictable even when cables get moved around.
You will find that SICK manufacturing standards are evident in the fit and finish.
Since it's unbranded/general, you can repurpose it across devices without worrying about brand-specific aesthetics.