It mounts individually in size S00 and uses screw connections. The built-on relay connector and manual-automatic reset selector make it a direct fit for motor control centers where you need adjustable protection without swapping heater elements.
The 3...12 A adjustable current range covers small motors, pumps, and fans in the fractional-to-5.5 kW range at 400 V. Size S00 keeps the footprint compact for DIN-rail or screw-mount panels; the screw terminals accept standard ring or fork lugs without special tooling.