3SK1211-1BB40 a SIRIUS safety relay output expansion module featuring 4 normally open (NO) safety enabling circuits and 1 normally closed (NC) signaling circuit，24V DC with screw-type terminals

3SK1211-1BB40 | SIRIUS safety relay output expansion module Product Type: Output expansion module for safety relays Outputs: 4 NO safety circuits (enabling), 1 NC circuit (signaling) Control Supply Voltage: 24 V DC Terminals: Screw-type terminals Dimensions: 22.5 mm width, 100 mm height, 121.6 mm depth Safety Ratings: Up to SIL 3 (IEC 61508) and PL e (EN ISO 13849-1)