Snap-On Auxiliary Switch Block with Screw Terminal, 2NO/2NC, 10 A, 600 V dc, 690 V ac. Number of Contacts: 4. Range: Sirius Innovation. Pole and Throw Configuration: 4PST. Minimum Operating Temperature: -25°C. Maximum Operating Temperature: +60°C. Operating Temperature Range: -25 → +60 °C. Series: 3RH29. MPN: 3RH2911-1XA22-0MA0, Siemens