SICK Safety Light Curtain Set C4P-SA21031A00/C4P-EA21031C00

( Brand: Sick ), ( Manufacturer Part Number: C4P-SA21031A00 ), ( Type: Light Curtain Sets ), ( Year: 2021 ), ( Dimensions: 85x2x2 ), ( State: Michigan ), ( Country: United States )

Review SICK C4p-sa21031a00/c4p-ea21031c00 Safety Light Curtain Set Used

The **SICK C4P-SA21031A00 (2021) Safety Light Curtain Set** represents the pinnacle of modern industrial safety technology, engineered to provide unparalleled protection in high-risk manufacturing, packaging, and automation environments. This advanced safety device combines cutting-edge laser technology with robust, IP67-rated housing to deliver reliable, high-speed detection while ensuring compliance with the stringent requirements of international safety standards, including ISO 13849 and EN 61496. Designed with a compact yet durable form factor, the C4P-SA21031A00 features a **210 mm beam width**, making it ideal for medium-sized applications where precise, high-resolution protection is critical such as guarding conveyor belts, robotic arms, or automated assembly lines. Its **dual-channel architecture** (paired with the C4P-EA21031C00 evaluation unit) ensures seamless integration with SICK s comprehensive safety ecosystem, offering real-time monitoring, diagnostics, and fail-safe operation to minimize downtime and enhance worker safety.

What truly sets this safety light curtain apart is its **high-performance scanning capability**, which delivers up to **1,024 measurement points** across its beam width, allowing for granular detection of even the smallest obstructions or intrusions. The system operates at an impressive **scan frequency of up to 50 Hz**, enabling rapid response times critical for dynamic production environments where split-second decisions can prevent accidents. Additionally, the **adaptive beam shaping technology** ensures consistent performance regardless of environmental conditions, such as dust, moisture, or temperature fluctuations, thanks to its **operating temperature range of -20 C to 60 C**. The rugged, corrosion-resistant housing not only protects against harsh industrial elements but also simplifies installation and maintenance, as it can be mounted directly on machinery or walls without compromising durability.

Beyond its technical prowess, the C4P-SA21031A00 excels in **user experience and connectivity**, offering seamless integration with SICK s **PROFIBUS DP, PROFINET, or EtherCAT** communication protocols for effortless incorporation into existing automation networks. The accompanying **C4P-EA21031C00 evaluation unit** provides intuitive diagnostics, including real-time status monitoring, fault detection, and maintenance alerts, all accessible via a user-friendly interface. This level of transparency empowers operators to proactively address potential issues before they escalate, reducing unplanned interruptions and extending the system s operational lifespan. Furthermore, the device s **safety-rated design** adheres to the highest industry standards, ensuring compliance with **Category 4, Performance Level d (PL d)** classifications, which are essential for applications where even the slightest failure could pose significant risks.

Ideal for industries such as **automotive manufacturing, food and beverage processing, and pharmaceutical production**, the SICK C4P-SA21031A00 safety light curtain set is a testament to innovation in occupational safety. Its combination of **high-speed detection, adaptive performance, and seamless integration** makes it an indispensable component for modern factories seeking to balance efficiency with rigorous safety protocols. Whether guarding high-speed production lines or protecting sensitive robotic operations, this advanced safety solution delivers the reliability and precision needed to create a safer, more productive work environment.

### **Pros and Cons of buying a SICK C4P-SA21031A00 (2021) Safety Light Curtain Set (C4P-SA21031A00 / C4P-EA21031C00)**

#### **Overview**

The **SICK C4P-SA21031A00** is a **compact, high-performance safety light curtain** designed for industrial applications requiring reliable protection against moving parts, pinch points, or unauthorized access. It is part of SICK s **C4P series**, known for integration with safety controllers and advanced diagnostic capabilities. This model is suitable for applications where space is limited but safety compliance is critical.

---

### **Pros**

1. **Compact and Space-Efficient Design**

- The **C4P-SA21031A00** is designed for **tight installation spaces**, making it ideal for applications where larger safety curtains would be impractical. Its **modular and slim profile** allows for flexible mounting options, including ceiling, wall, or column installations.

2. **High Performance and Reliability**

- Features **fast scan rates (up to 100 Hz)** for precise detection of moving objects, reducing false trips and improving overall safety.

- Uses **laser-based technology** with **high resolution**, ensuring accurate detection of small objects or irregular shapes.

- **Self-diagnostic capabilities** help identify potential issues before they lead to failures, reducing downtime.

3. **Integration with Safety Controllers**

- Compatible with **SICK s safety controllers (e.g., C4P-EA21031C00)** and other **PLc-based systems**, allowing for seamless integration into existing safety architectures.

- Supports **STO (Safe Torque Off)** and **SS1 (Safe Stop 1)** functions, enhancing machine safety standards (e.g., ISO 13849, EN ISO 13855).

4. **Easy Installation and Configuration**

- **Plug-and-play compatibility** with minimal wiring requirements, reducing installation time.

- **User-friendly configuration** via SICK s **SOPAS software** or direct integration with PLCs.

- **Modular design** allows for easy replacement of individual components (e.g., sensors, cables) without replacing the entire unit.

5. **Compliance with Safety Standards**

- Meets **EN ISO 13855** (safety distances), **EN 61496** (safety of machinery), and **IEC 62061** (functional safety), ensuring compliance with international safety regulations.

- **Category 4 / PL d** performance level, suitable for high-risk applications.

6. **Durability and Longevity**

- Built with **industrial-grade materials**, resistant to **vibration, dust, and moisture** (IP67 rating for some variants).

- **Long lifespan** with minimal maintenance requirements, reducing operational costs over time.

7. **Flexible Mounting Options**

- Can be installed in **vertical, horizontal, or angled positions**, adapting to various machine layouts.

- **Ceiling or wall mounting** options provide versatility in different industrial environments.

8. **Advanced Diagnostic Features**

- **Self-testing functions** detect sensor failures, cable breaks, or obstruction issues in real time.

- **Diagnostic data logging** helps in predictive maintenance, reducing unexpected failures.

9. **Cost-Effective for High-Risk Applications**

- While the upfront cost is moderate, its **reliability and low maintenance needs** make it cost-effective in the long run, especially in applications where downtime is costly.

10. **Support for Remote Monitoring**

- Some variants support **remote diagnostics and updates**, allowing for proactive maintenance and troubleshooting.

---

### **Cons**

1. **Higher Initial Cost Compared to Basic Safety Curtains**

- The **C4P series** is more expensive than entry-level safety light curtains (e.g., basic laser scanners or photoelectric sensors). This may be a barrier for small businesses or applications with tight budgets.

2. **Complexity in Setup for Non-Experts**

- While the installation is straightforward, **configuration and integration with PLCs or safety controllers** may require technical expertise, especially for users unfamiliar with SICK s software (e.g., SOPAS).

3. **Limited Customization for Non-Standard Applications**

- The **fixed scan pattern and resolution** may not suit highly specialized applications requiring **custom detection zones** or **non-linear scanning**.

- Not ideal for **very high-speed applications** where ultra-fast response times (e.g., sub-millisecond) are required (though 100 Hz is generally sufficient for most industrial uses).

4. **Potential for False Trips in Dusty or Foggy Environments**

- While robust, **dust, fog, or condensation** can occasionally interfere with laser detection, though the **IP67-rated variants** mitigate this risk to some extent.

5. **Dependence on Power Supply Stability**

- Like all electronic safety devices, **power fluctuations or surges** can affect performance. A **stable power source** is recommended to avoid false activations or malfunctions.

6. **Limited Physical Size Options**

- The **C4P-SA21031A00** is designed for **compact applications**, which may limit its use in **very large protection zones** where longer curtains would be needed.

7. **Training Requirements for Maintenance Staff**

- Proper **training on diagnostics and troubleshooting** is recommended to fully utilize the device s features, which may require additional investment in staff training.

8. **Compatibility Issues with Non-SICK Systems**

- While it integrates well with **SICK controllers**, compatibility with **third-party safety systems** may require additional adapters or protocols, adding complexity.

9. **Potential for Signal Interference**

- In environments with **strong electromagnetic interference (EMI)**, the laser sensor may experience **signal degradation**, though SICK s shielding reduces this risk.

10. **Replacement Parts Availability**

- While SICK has a strong after-sales support network, **availability of replacement parts** in remote or less developed regions may be a concern.

---

### **Conclusion**

The **SICK C4P-SA21031A00 safety light curtain** is a **high-quality, reliable, and compact solution** for industrial safety applications where **space efficiency, fast response times, and integration with safety controllers** are critical. Its **advanced diagnostic features, compliance with safety standards, and durability** make it a strong choice for **automation, packaging, material handling, and robotics** where human-machine interaction requires strict protection.

However, its **higher cost, complexity in setup, and potential limitations in highly specialized environments** may make it less ideal for **budget-conscious or non-technical users**. Businesses with **tight safety compliance requirements, limited installation space, or those already using SICK systems** will find this product particularly valuable.

For applications where **cost is the primary concern**, a **basic safety light curtain or photoelectric sensor** might suffice. Conversely, for **high-risk, high-reliability applications**, the **C4P-SA21031A00** is a **superior choice** due to its **performance, diagnostics, and integration capabilities**.

---

### **Recommendation**

You need a **compact, high-performance safety curtain** for **tight installation spaces**.

Your application requires **fast response times (100 Hz) and reliable detection** of moving objects.

You are using **SICK safety controllers or PLCs** and need seamless integration.

**Compliance with ISO 13849, EN ISO 13855, or IEC 62061** is mandatory.

You prioritize **low maintenance, self-diagnostics, and long-term reliability**.

Your budget allows for a **premium safety solution** with advanced features.

Your budget is **strictly limited**, and cost is the top priority.

Your application requires **custom detection patterns** not supported by this model.

You lack **technical expertise** for configuration and troubleshooting.

The environment has **extreme EMI, dust, or fog** that may interfere with laser performance.

You need **ultra-fast response times (sub-millisecond)** beyond what this device offers.

For most **industrial safety-critical applications**, the **C4P-SA21031A00 is a well-justified investment** due to its **balance of performance, reliability, and integration capabilities**. Ensure proper **training for maintenance staff** and **compatibility testing with your existing safety architecture** before purchase.

Details:

Both units are industrial rated and suitable for automated machinery requiring safety-rated access detection. Specifications:: Weight. These devices are part of the C4000 series and designed for machine guarding personnel protection. Overview:: Type: Light Curtain Sets.

Model: C4P-SA21031A00 / C4P-EA21031C00. 2021 SICK C4P-SA21031A00/C4P-EA21031C00 SAFETY LIGHT CURTAIN SET USED C4P E24031000 and I24031000 safety light curtain set, consisting of the emitter receiver units. Stock #: IGAM3010090.

part #: c4psa21031a00 prices

• $329.00-$825.00

specifications automationjack:

• brand: Sick
• mpn: C4p-sa21031a00
• type: Light Curtain Sets
• year: 2021
• dimensions: 85x2x2
• state: Michigan
• country: United States

returns automationjack:

• time: 30 Days
• method: Money back
• policy: Returns Accepted
• paid by: Seller

seller automationjack:

• # reviews: 1175
• city: Detroit, Michigan
• rating: 99.7%

offer automationjack:

• options: Ship-to-home
• quantity: 5
• best offers: True
• started: March 4, 2026
• sold: 0
• availability: In Stock

general automationjack:

• condition: Used
• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment

payments automationjack:

• credit card: Discover
• other
• wallet: Paypal

shipping automationjack:

• type: Calculated
• class: Standard, One-day
• service: UPS Ground, UPS Next Day Air
• cost: $91.44
• transit: 2-5 Days
• carrier: UPS

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