This is the core overcurrent protection device for a distribution or motor branch circuit, rated for the T2L platform's 160 A frame size.
As a Tmax T2L-160 frame MCCB, the 1SDA051080R1 is designed for panelboard and switchboard integration with a 160 A continuous current rating at the frame level. The R10 thermal-magnetic release means the breaker has a fixed thermal trip element for overload protection and a fixed magnetic instantaneous trip for short-circuit protection — no field-adjustable dials, so the coordination study must match the release's fixed curve. This is a standard choice when the load profile is well-defined and doesn't require field tuning.
Deployment Context
In a typical low-voltage switchgear or motor control center, this MCCB feeds a downstream load such as a motor starter, a lighting panel, or a distribution sub-feed. The 3-pole configuration covers three-phase circuits; the R10 release's fixed settings simplify commissioning — no trip-unit programming required.