The Siemens 5SL6602-7 is a 4-pole (3P+N) miniature circuit breaker from the SENTRON 5SL6 family, rated 2 A with a C tripping characteristic. The C-curve means it holds through moderate inrush — good for small motor or lighting loads that draw a short surge on start.
Energy limiting class 3 means it restricts let-through energy on a short circuit, which helps with downstream equipment coordination. Terminals accept solid or stranded copper from 0.75 mm² up to 25 mm², with a tightening torque of 2.5 to 3 N·m. That covers most branch-circuit wiring sizes you'd pair with a 2 A breaker — 1.5 mm² or 2.5 mm² is typical. The breaker is sealable and has touch protection on the terminals, which simplifies inspection sign-off.