The Siemens 3RV2011-1EA15-Z X95 is a SIRIUS 3RV2 motor starter protector in the S00 frame size. It's a circuit breaker for motor protection with a CLASS 10 trip characteristic, an A-release (overload) set at 2.8...4 A, and an N-release (short-circuit) at 52 A. This is the version with screw terminals and transverse auxiliary switches (1 NO + 1 NC). The S00 frame is the compact footprint in the SIRIUS family, sized for smaller motor loads up to around 4 A full-load current — think fractional-horsepower pumps, fans, or conveyor drives in a control panel.
The A-release range of 2.8...4 A is the overload setting that protects the motor against sustained overcurrent. You set it to match the motor's nameplate full-load amps. The N-release at 52 A is the magnetic short-circuit trip: it clears a fault above that level instantaneously, protecting the wiring and contactor. The S00 frame limits the maximum motor rating you can connect; this unit is sized for motors drawing up to 4 A, typically 0.75 kW to 1.5 kW at 400 V.
RoHS compliant since 01-10-09. The product family is SIRIUS 3RV2 motor starter protectors. Group code R711, product group 5332.