Siemens SIRIUS 3RN1 thermistor motor protection evaluation unit, 3RN1012-1CK00, 230 V AC, 1 NO + 1 NC, screw terminal, 22.5 mm width, IP20.
| Parameter | Value |
|---|---|
| Rated value (50 Hz) | 230 V |
| Rated value (60 Hz) | 230 V |
| Parameter | Value |
|---|---|
| Ingress protection (IP rating), wired | IP20 |
| Parameter | Value |
|---|---|
| Fastening method | screw and snap-on mounting |
| Width | 22.5 mm |
| Height | 102 mm |
| Depth | 91 mm |
The Siemens 3RN1012-1CK00 is a thermistor motor protection evaluation unit from the SIRIUS 3RN1 series, designed to monitor motor winding temperature via PTC thermistors and trip on overheat. It operates on 230 V AC at both 50 and 60 Hz, with a contact configuration of 1 NO + 1 NC for alarm and trip signaling.
The 22.5 mm width fits a standard single-module DIN-rail footprint, secured by screw and snap-on mounting. Rated IP20 — suitable for dry, enclosed control panels, not for washdown zones.
The official replacement is Siemens 3RN2012-1BW30, a standard evaluation unit with manual/auto/remote selection, same 1 NO + 1 NC contacts, 230/110 V AC, screw terminals.
Rated supply voltage 230 V AC at 50/60 Hz; 1 normally open + 1 normally closed auxiliary contacts; IP20; width 22.5 mm; ambient temperature -25 to +60 °C.
No related articles