Siemens digital industrial safety relay 3SK1211-2BW20. Manufacturer: Siemens. Description: Safety relay. Output expansion type: 3SK1211-2BW20. Design: other. Type of electrical connection: Spring terminal connection. Rail mounting possible: no. Rated control supply voltage Us at AC 50 Hz: 110-240 V. Rated control supply voltage Us at AC 60 Hz: 110-240 V. Rated control supply voltage Us at DC: 110-240 V. Voltage type for actuation: AC/DC. With removable terminals: no. With muting function: no. With feedback circuit: no. Stop category according to IEC 60204: 0. Performance level according to EN ISO 13849-1: Level e. SIL according to IEC 61508: 3. With UL approval: yes. Width: 22.5 mm. Height: 100 mm. Depth: 121.6 mm. With TÜV approval: yes.

Siemens digital industrial safety relay 3SK1211-2BW20: additional details. SIRIUS safety relay output expansion 4RO with relay release circuits, 4 normally closed contacts plus relay signal circuit 1 normally open contact. Us = 110-240 V AC/DC. Spring terminal connection (Push-In). Output expansion SIRIUS 3SK1 for safety relays. The 3SK output expansions serve to supplement a basic device with additional safe outputs with a switching capacity of up to 10 A. They can be connected to any 3SK basic device through wiring. All devices with a control supply voltage of DC 24 V can also be connected to the basic devices Advanced 3SK1 and 3SK2 using the device connector 3ZY12. The devices feature four (AC-15 5 A) or three (AC-15 10 A) safe outputs. There is a choice between a control voltage of 24 V or wide voltage. Available with screw or spring terminal connection (Push-In). The safety relays 3SK replace the proven series 3TK28. Safety is a SIRIUS business. EAN: 4011209913790.