Safety relay SIRIUS 3SK1211-1BB40 output expansion 4RO
Technical Information
| Item condition | New |
| Manufacture name | Safety relay SIRIUS 3SK1211-1BB40 output expansion 4RO |
| Brand | Siemens |
| Categories |
Safety Relays
|
| Country of origin | DE |
| Harmonized System Code | 8536 4900 00 |
| Number of outputs, safety related, undelayed, with contact | 0 |
| Rail mounting possible | No |
| Performance level according to EN ISO 13849-1 | Level e |
| SIL according to IEC 61508 | 3 |
Packing details
| Packing level 1 | 4011209913752 |
Other Technical data
| Width | 22.5 mm |
| Height | 100 mm |
| Depth | 121.6 mm |
| With approval according to UL | Yes |
| With detachable clamps | No |
| With start input | No |
| With feedback circuit | No |
| Number of outputs, safety related, delayed, with contact | 0 |
| Number of outputs, safety related, undelayed, semiconductors | 0 |
| Number of outputs, safety related, delayed, semiconductors | 0 |
| Number of outputs, signalling function, undelayed, with contact | 0 |
| Number of outputs, signalling function, delayed, with contact | 0 |
| Number of outputs, signalling function, undelayed, semiconductors | 0 |
| Number of outputs, signalling function, delayed, semiconductors | 0 |
| Rated control supply voltage at DC | 24 V |
| With muting function | No |
| With approval for BG BIA | No |
| Suitable for monitoring of magnetic switches | No |
| Suitable for monitoring of proximity switches | No |
| Suitable for monitoring of emergency-stop circuits | No |
| Suitable for monitoring of optoelectronic protection equipment | No |
| Suitable for monitoring of position switches | No |
| Suitable for monitoring of tactile sensors | No |
| Suitable for monitoring of valves | No |
| Voltage type for actuating | DC |
| With approval for TÜV | Yes |
Description
SIRIUS safety relay Output expansion 4RO with relay enabling circuits 4 NO contacts plus Relay signaling circuit 1 NC contact Us = 24 V DC screw terminal Output expansion SIRIUS 3SK1 for safety relays. The 3SK output expansions are used for supplementing basic units with additional safe outputs with a switching capacity of up to 10 A. They can be connected to each 3SK basic unit by wiring. All devices with a 24 V DC control supply voltage can also be connected to the 3SK1 and 3SK2 Advanced basic units using 3ZY12 device connectors. The devices have four (AC-15 5 A) or three (AC-15 10 A) fail-safe outputs. There is a choice between a control supply voltage of 24 V or a wide voltage range. Available with screw or spring-type terminals (push-in) across the board. The 3SK safety relays are replacing the proven 3TK28 series. Safety is a SIRIUS business.