Siemens 3RN2010-1BA30





The Siemens 3RN2010-1BA30 is a thermistor motor protection relay designed to safeguard motors by monitoring temperature. This compact unit, housed in a 22.5 mm enclosure, features screw terminals for easy wiring and two change-over contacts rated for 24 V AC/DC. It supports automatic reset functionality, making it compatible with bimetallic switches. The relay includes two LEDs to indicate operational status—ready or tripped—and provides galvanic isolation to ensure safe and reliable performance. Available through BSP Automation, this device offers dependable motor protection for various industrial applications.
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