New Original Siemens 3SK1111-2AB30 Industrial Safety Relay 24V AC DC Safety Control Unit
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New Original Siemens 3SK1111-2AB30 Industrial Safety Relay 24V AC DC Safety Control Unit
Product Overview
3SK1111-2AB30 belongs to Siemens SIRIUS 3SK1 Standard series safety relay, a compact DIN rail-mounted fail-safe evaluation unit for machine safety circuits. This safety control unit is designed to monitor safety components including emergency stop buttons, safety door interlock switches, safety light curtains and two-hand control devices. It operates with 24 V AC/DC power supply, equipped with 3 normally open safety enabling contacts and 1 normally closed signal feedback contact. The unit adopts push-in spring terminals for convenient wiring, supports single-channel or dual-channel sensor evaluation, and realizes safety function configuration via built-in DIP switches. Certified to EN ISO 13849-1 PL e / Category 4 and IEC 61508 SIL 3, it is widely installed inside electrical control cabinets for packaging machinery, automated assembly equipment, machine tools, conveyor systems and general industrial automation machines to implement safe machine stop protection. The product meets CE, UL, cULus and TÜV safety standards.
Main Technical Specifications
| Parameter Item | Detailed Specification |
|---|---|
| Model Code | 3SK1111-2AB30 |
| Product Series | SIRIUS 3SK1 Standard Safety Relay |
| Rated Control Supply Voltage | 24 V AC / DC |
| Operating Voltage Tolerance | AC: 0.85 ~ 1.1 × Un; DC: 0.85 ~ 1.2 × Un |
| Safety Contact Configuration | 3 × NO safety enabling contacts |
| Signal Contact | 1 × NC feedback contact for status monitoring |
| Terminal Type | Push-in spring loaded terminals |
| Rated Thermal Current of Contacts | 5 A |
| Response Time | ≤ 30 ms |
| Mechanical Service Life | Up to 10 million switching cycles |
| Electrical Service Life (Resistive Load) | Up to 100,000 operations |
| Safety Level | EN ISO 13849-1 PL e, Category 4; IEC 61508 SIL 3 |
| Reset Mode | Configurable automatic reset / monitored manual reset |
| Protection Class | IP20 (Suitable for cabinet installation only) |
| Mounting Method | Standard 35 mm DIN rail snap mounting |
| Operating Ambient Temperature | -25 ℃ ~ +60 ℃ |
| Storage Temperature | -40 ℃ ~ +80 ℃ |
| Relative Humidity | 10% ~ 95% RH, non-condensing |
| Built-in Indication | LED status indicators for power and fault diagnosis |
| Certifications | CE, UL, cULus, TÜV, RoHS |
Overall Dimensions & Net Weight
| Dimension & Weight Parameter | Exact Data |
|---|---|
| External Dimensions | Width 22.5 mm × Height 100 mm × Depth 121.6 mm |
| Single Unit Net Weight | 239 g |
| Packaged Gross Weight | Approximately 280 g |
| Housing Material | Flame-retardant engineering plastic |
| Minimum Side Clearance | 5 mm adjacent spacing inside control cabinet |
Primary Main Functions
- Emergency Stop Circuit Monitoring: Continuously monitor emergency stop signals, trigger safe shutdown of machine actuators once emergency stop is activated.
- Safety Guard Interlock Control: Detect open/closed status of safety doors and protective guards to prevent equipment operation when safety barriers are opened.
- Flexible Input Channel Evaluation: Support single-channel or dual-channel wiring for safety sensors to avoid hidden failure risks.
- Configurable Reset Logic: Users select automatic reset or monitored manual reset mode according to machine safety requirements via DIP switches.
- Equipment Status Feedback: The independent NC signal contact transmits safety circuit status to PLC or upper monitoring system.
- Comprehensive Internal Fault Detection: Detect internal component faults and force safety contacts to open for fail-safe protection.
- Quick On-site Commissioning: DIP switch parameter configuration without programming software, greatly shortening debugging time.
- Wide Environmental Adaptability: Stable operation under wide temperature range and anti-vibration structure fits various production workshop environments.
Key Technical Features
- Ultra-slim 22.5 mm narrow housing saves cabinet installation space for dense multi-component layout.
- Push-in spring terminals enable fast wiring without screwdrivers, reduce wiring time and avoid loose connection faults.
- Fail-safe circuit design ensures contacts will switch to safe state under internal component failure conditions.
- High safety rating PL e / SIL 3 satisfies strict safety requirements for most automated machinery.
- Clear LED indicator lights allow maintenance staff to rapidly judge power status and fault conditions.
- Standard DIN rail mounting supports quick installation and replacement within electrical cabinets.
- Robust housing with vibration and shock resistance adapts to equipment with continuous cyclic operation.
- Unified 3SK1 series platform supports modular expansion and interchangeable upgrade for different safety application demands.
List of 10 Similar Functional Siemens Safety Relay Products
- 3SK1111-1AB30: Screw terminal version of 3SK1111-2AB30
- 3SK1112-2AB30: 4 safety NO contacts push-in terminal standard safety relay
- 3SK1121-2AB30: 110–240 V AC/DC wide voltage safety relay
- 3SK1211-2AB30: 3SK1 Advanced series expandable safety relay
- 3SK2112-1AA10: SIRIUS 3SK2 programmable high-performance safety relay
- 3SK1111-2BB30: Safety relay with time-delay shutdown function
- 3SK1113-2AB30: Safety relay dedicated for two-hand control function
- 3SK1220-2AA30: Input expansion module matched with 3SK1 basic units
- 3SK1111-2AC30: Safety relay optimized for light curtain evaluation
- 3RK3111-1AA10: Modular safety system relay for complex multi-safety circuit applications
WHO WE ARE
About us
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
Where is your company located?
We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.
What types of electronic components does your company mainly sell?
We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.
What are the prices of your products?
Our product prices vary according to market conditions and product models. We are committed to providing high quality electronic components at fair and reasonable prices, and offer our customers a variety of incentives and flexible purchasing methods.
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You can contact our customer service staff directly by phone, whatsapp, email, our official website. We support a variety of payment methods, and provide you with fast and safe logistics and distribution services.
How do you guarantee the quality of your products?
We attach great importance to product quality, all the electronic components we sell come from regular channels and undergo strict quality testing. We promise to provide customers with high-quality electronic components, and provide perfect after-sales service to ensure that customers have no worries in the process of use.
If I am not satisfied with the electronic components I purchased, can I return them?
We provide perfect after-sales service, if you are not satisfied with the purchased electronic components, you can return or exchange them within the specified time. Please refer to our official website or consult our customer service staff for the specific return policy and process.
Can your company provide technical support and solutions?
We have a professional technical team that can provide technical support and solutions for our customers. Whether you encounter any problems in choosing or using the products, we will be happy to answer your questions and provide professional technical support.
How to contact your customer service?
You can contact our customer service personnel through the online customer service system on our official website, telephone, e-mail or social media platforms. Our customer service staff will provide you with professional services and answer any questions you may have.
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In order to give back to our customers, we will organize various promotions from time to time, including discounts, full reductions, giveaways and so on. Please keep an eye on our official website or social media platforms to stay up-to-date with the latest promotions.
