Description
The Siemens 3RN2010-1CW30 is a compact motor protection relay for thermistor-based or bimetallic motor sensors. Housed in a 17.5 mm enclosure, this relay monitors motor temperature and trips when overheating occurs, safeguarding motors from damage.
Equipped with 1 normally open (NO) and 1 normally closed (NC) contact, the relay provides versatile integration into motor control circuits. Its auto-reset functionality restores normal operation automatically after the fault clears. Two LED indicators display the ready and tripped states, ensuring easy monitoring. Rated for 24–240 V AC/DC, it features full electrical isolation and is compatible with bimetallic switches.
Designed for industrial environments, the 3RN2010-1CW30 offers reliable, compact, and easy-to-install motor protection in control panels and automation systems.
Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Part Number | 3RN2010-1CW30 |
| Product Type | Thermistor Motor Protection Relay |
| Enclosure Width | 17.5 mm |
| Contacts | 1 NO + 1 NC |
| Supply Voltage (Us) | 24–240 V AC/DC |
| Auto-Reset | Yes |
| LED Indicators | 2 (Ready / Tripped) |
| Compatible Sensor Type | Thermistor / Bimetallic switch |
| Terminal Type | Screw Terminals |
| Electrical Isolation | Yes |
| Packaging Dimensions (L × W × H) | 132 × 116 × 38 mm |
| Net Weight | 0.135 kg |
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