The MGP1602L12 is a Schneider Electric PowerPacT 4 molded case circuit breaker (MCCB), 2-pole, wired -L2, with a TM-D thermal-magnetic trip unit rated 160 A at 40 °C. That 25 kA symmetrical rating is the same for both ultimate and service, which simplifies coordination studies.
The 160 A trip rating is fixed — no adjustment range beyond the thermal-magnetic LI curve (L for overload, I for short-circuit). That means it's sized for a 160 A continuous load, not a motor starting duty where you'd want an adjustable magnetic pickup. The 8 kV impulse withstand (Uimp) and 750 V insulation voltage (Ui) cover standard distribution panel environments.
It takes two 35 mm module spaces. The toggle control is manual — no motor operator or shunt trip built in. No earth-leakage module. For a replacement in an existing panel, verify the busbar arrangement and the -L2 phase connection pattern.