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The Siemens 3RV20211JA10 is a SIRIUS 3RV2 series motor starter protector (MSP) in size S0. It features a 3-pole design with a thermal overload release adjustable from 7 to 10 A. The device is rated for operational voltages up to 690 V AC and provides a breaking capacity of up to 100 kA at 240/400 V AC.
This MSP includes phase failure detection and is classified as trip class 10. It is designed for DIN rail mounting and has a rotary actuator. The unit is ATEX certified (Ex II (2) GD) with certificate DMT 02 ATEX F 001, making it suitable for use in potentially explosive atmospheres.
Key electrical specifications include an insulation voltage of 690 V, surge voltage resistance of 6 kV, and a power loss of 9.25 W at rated current. The mechanical service life is 100,000 switching cycles for both main and auxiliary contacts, with an electrical endurance of 100,000 switching cycles.
The adjustable current response value is 7 to 10 A.
The rated operating voltage is 20 to 690 V AC.
The operating ambient temperature range is -20 to +60 °C.
RoHS status is listed as compliant but is unverified.