# 3SK Relay

DDY Supply offers the Siemens 3SK Relay, a safety relay designed for industrial electrical control systems. This relay is integral to monitoring safety circuits and ensuring reliable system shutdowns in machinery and automation environments. It supports critical safety functions within control panels and electrical distribution setups. DDY Supply provides industrial electrical components for global distributors, EPC contractors, system integrators and industrial buyers.

Target customers:  
\- Electrical distributors  
\- EPC contractors  
\- System integrators  
\- Industrial buyers  
\- Engineering companies

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1\. Product Overview

The Siemens 3SK Relay functions as a critical safety component within industrial automation and control systems. It is typically applied in machinery safety circuits, emergency stop monitoring, and safety interlock functions. The relay enhances system reliability by providing fail-safe switching and diagnostic monitoring to meet industrial safety standards.

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2\. Key Features

-   Designed for safety circuit monitoring with defined performance levels to support compliance with industrial safety regulations.
-   Compact relay housing enabling straightforward integration into control panels and machinery assemblies.
-   Reliable mechanical and electrical endurance to ensure sustained operation in industrial environments.
-   Compatible with various control systems requiring safety-related switching and signaling functions.
-   Installation facilitates simple wiring and mounting, reducing setup times and supporting maintenance.

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3\. Technical Specifications

Specification

Detail

Brand

Siemens

Model

3SK Relay

Product Type

Safety Relay

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4\. Applications

Siemens 3SK Relay is commonly utilized within industrial automation frameworks, including PLC control systems and electrical distribution systems in manufacturing equipment. It is suitable for integration in control panels safeguarding machinery and infrastructure projects where reliable safety circuit monitoring is critical.

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5\. FAQ

Q: Where can I buy Siemens 3SK Relay from China?  
A:  
DDY Supply provides safety relay components for global distributors, contractors, system integrators and engineering projects.

Q: What applications is the 3SK Relay suitable for?  
A:  
The 3SK Relay is primarily used in industrial automation, PLC control systems, and safety monitoring within electrical distribution systems.

Q: Can DDY Supply provide industrial electrical components for projects?  
A:  
Yes, DDY Supply supplies industrial electrical components for international projects.

## Details

- **Price:** 148.99 USD - 1140.24 USD
- **Vendor:** DDY GROUP CO.,LTD.
- **Tags:** Relay, Safety Relay, SIEMENS

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| 3SK1111-1AB30 | 371.08 USD | In stock |
| 3SK1211-2BB40 | 341.79 USD | In stock |
| 3SK1121-2CB42 | 589.18 USD | In stock |
| 3SK1111-2AB30 | 371.08 USD | In stock |
| 3SK1211-1BB40 | 341.79 USD | In stock |
| 3SK1121-1CB42 | 589.18 USD | In stock |
| 3SK1111-1AW20 | 371.08 USD | In stock |
| 3SK1122-1CB42 | 353.18 USD | In stock |
| 3SK1121-1CB41 | 589.18 USD | In stock |
| 3SK1121-1AB40 | 471.99 USD | In stock |
| 3SK1122-1AB40 | 353.18 USD | In stock |
| 3SK1211-1BW20 | 341.79 USD | In stock |
| 3SK1121-2CB41 | 589.18 USD | In stock |
| 3SK1121-2AB40 | 471.99 USD | In stock |
| 3SK1220-1AB40 | 283.19 USD | In stock |
| 3SK2122-2AA10 | 1140.24 USD | In stock |
| 3SK2112-2AA10 | 775.22 USD | In stock |
| 3SK1230-1AW20 | 236.00 USD | In stock |
| 3SK1213-1AB40 | 498.03 USD | In stock |
| 3SK1122-2AB40 | 353.18 USD | In stock |
| 3SK1121-1CB44 | 589.18 USD | In stock |
| 3SK1122-1CB41 | 353.18 USD | In stock |
| 3SK1213-2AL20 | 498.03 USD | In stock |
| 3SK1121-2CB44 | 589.18 USD | In stock |
| 3SK1122-1CB44 | 353.18 USD | In stock |
| 3SK1230-2AW20 | 236.00 USD | In stock |
| 3SK1213-1AJ20 | 498.03 USD | In stock |
| 3SK1213-2AB40 | 498.03 USD | In stock |
| 3SK2122-1AA10 | 1140.24 USD | In stock |
| 3SK1122-2CB41 | 353.18 USD | In stock |
| 3SK0111-1AB30-2AA0 | 148.99 USD | In stock |
| 3SK1111-2AW20 | 371.08 USD | In stock |
| 3SK1213-1AL20 | 498.03 USD | In stock |
| 3SK1211-2BW20 | 341.79 USD | In stock |
| 3SK1122-2CB44 | 353.18 USD | In stock |
| 3SK1213-2AJ20 | 498.03 USD | In stock |
| 3SK2112-1AA10 | 775.22 USD | In stock |
| 3SK1211-2BB00 | 341.79 USD | In stock |
| 3SK1220-2AB40 | 283.19 USD | In stock |
| 3SK1122-2CB42 | 353.18 USD | In stock |
| 3SK1211-1BB00 | 341.79 USD | In stock |

## Images

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> Source: [DDY GROUP CO.,LTD.](https://ddysupply.com/products/3sk-relay)
> Updated: 2026-08-29