Siemens SIRIUS 3SK1 Safety Relay 110 → 240V ac/dc, Single Channel 4 Safety Contacts
- RS Stock No.:
- 784-5784
- Distrelec Article No.:
- 304-02-186
- Mfr. Part No.:
- 3SK1111-1AW20
- Brand:
- Siemens
Subtotal (1 unit)*
£159.92
(exc. VAT)
£191.90
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 10 unit(s) ready to ship
- Plus 5 unit(s) ready to ship from another location
- Plus 2 unit(s) shipping from 30 October 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £159.92 |
*price indicative
- RS Stock No.:
- 784-5784
- Distrelec Article No.:
- 304-02-186
- Mfr. Part No.:
- 3SK1111-1AW20
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Supply Voltage | 110 → 240V ac/dc | |
| Number of Channels | 1 | |
| Safety Contacts | 4 | |
| Function | Safety Monitoring | |
| Reset Method | Automatic, Monitored | |
| Range | SIRIUS | |
| Safety Category ISO 13849-1 | 4 | |
| PL ISO 13849-1 | e | |
| SIL IEC 61508 | 3 | |
| Terminal Type | Screw | |
| Standards Met | CCC, CE, CSA, EAC, UL | |
| Depth | 122mm | |
| Width | 22.5mm | |
| Series | 3SK1 | |
| Length | 100mm | |
| Performance Level | e | |
Select all | ||
|---|---|---|
Brand Siemens | ||
Supply Voltage 110 → 240V ac/dc | ||
Number of Channels 1 | ||
Safety Contacts 4 | ||
Function Safety Monitoring | ||
Reset Method Automatic, Monitored | ||
Range SIRIUS | ||
Safety Category ISO 13849-1 4 | ||
PL ISO 13849-1 e | ||
SIL IEC 61508 3 | ||
Terminal Type Screw | ||
Standards Met CCC, CE, CSA, EAC, UL | ||
Depth 122mm | ||
Width 22.5mm | ||
Series 3SK1 | ||
Length 100mm | ||
Performance Level e | ||
- COO (Country of Origin):
- DE
Siemens Safety Relay, 110 to 240V AC/DC Supply, Screw Terminals - SIRIUS Series - 3SK1111-1AW20
Reduce the risk of accidents in your industrial workplace using this safety relay from Siemens. It monitors your operations and sends a signal to the control unit if it detects a malfunction. This quickly initiates an appropriate response in the machine to protect both the equipment and personnel from mechanical hazards. To suit the needs of a range of systems, it has a broad supply voltage rating between 110 and 240V AC/DC. Use this relay to monitor safety devices such as emergency stops and light curtains. As it has a service life of 10 million switching cycles, this is a durable option for long-term use.
• Wide operating temperature range between -25°C and +60°C for use in challenging environments
• Resistant to impact and vibration to withstand demanding conditions
• Maximum frequency of 360 operations per hour for rapid functioning
• Automatic and monitored reset methods for added versatility
• Resistant to impact and vibration to withstand demanding conditions
• Maximum frequency of 360 operations per hour for rapid functioning
• Automatic and monitored reset methods for added versatility
How do I mount this safety relay?
You can mount this relay using screw or snap-on mounting, making it a versatile choice. As it fits in any position, you can easily adapt it to your existing safety setup for a flexible arrangement.
Related links
- Siemens SIRIUS 3SK1 Safety Relay 110 → 240V ac/dc
- Siemens SIRIUS 3SK1 Safety Relay 24V ac/dc, Single Channel 4 Safety Contacts
- Siemens SIRIUS 3SK1 Safety Relay 240V ac, Single Channel 4 Safety Contacts
- Siemens SIRIUS 3SK1 1 Auxiliary Contacts Safety Relay 110 → 240V ac/dc, Dual-Channel 4 Safety Contacts
- Siemens SIRIUS 3SK1 Safety Relay 24V dc, Single Channel 4 Safety Contacts
- Siemens SIRIUS 3SK1 Safety Relay 24V ac/dc 3 Safety Contacts
- Siemens SIRIUS 3SK1 4 Auxiliary Contacts Safety Relay 24V dc, Single Channel 4 Safety Contacts
- Siemens SIRIUS 3SK1 Safety Relay 24V dc, Single Channel 0 Safety Contacts