What you're actually looking at
The 1SBL181001R8010: Functionally, the class is a switching device sized into control panels — coil-driven, used to make and break the load side of a motor or heater circuit, not a breaker element.
Handling, mounting, and what to actually do next
Spec it into the BOM line, include the suffix detail that defines coil voltage and aux contact configuration, and run the RFQ with the cross-shop candidate B7-30-10-84 alongside so the supply side can quote both against the same delivery window.