3SK1211-1BB40 Description Description 3SK1211-1BB40 SIEMENS Safety – 3SK Safety Relays 4 x Relay Output (4A) instantaneous, 24VDC Related products SIEMENS 1FN1910-0AA20-3AA0 SIEMENS 1FN3050-4SA00-0AA0 SIEMENS 1FN3300-4SA00-0AA0 SIEMENS 1FK7022-5AK71-1AG0 SIEMENS 1FK7042-5AF71-1EA0 SIEMENS 1FT5066-1AF71-4AA0
