What it is and what it does
The Siemens 3RH1344-2BC40 is a SIRIUS auxiliary contactor in size S00, carrying four normally-open instantaneous contacts. It is rated 10 A at AC-12 for resistive loads and switches control circuits up to 690 V. The part is at a current-production lifecycle stage.
Mounting and integration
Mounts via screw or snap-on onto a DIN rail. The 45 mm width and 114 mm depth fit standard panel layouts; zero side clearance is required. The mounting position allows +/-180° rotation on a vertical surface and +/-22.5° tilt forward or backward.
Ratings and environmental limits
Operates from -25 to +60 °C, stores and ships from -55 to +80 °C. Pollution degree 3 suits industrial environments. Front face carries IP20 finger protection. Withstands shock at 10g / 5 ms and 5g / 10 ms. Surge voltage resistance rated at 6 kV.
Coil and contact ratings
DC magnet coil draws 3.2 W at both closing and holding. AC-15 switching capacity at 230 V is 6 A; at 400 V it is 3 A; at 500 V it is 2 A; at 690 V it is 1 A. Rated operational current at AC-12 is 10 A. The solid connection accepts 2x (0.25 to 2.5 mm²) conductors.
Sourcing and lifecycle
The lifecycle stage is current production. This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.