LEUZE SD4T30-1200H Safety Light Curtain Transmitter Receiver SOLID-4 48 SD4R30-1200E

( Brand: Leuze ), ( Manufacturer Part Number: SD4T30-1200H ), ( Model: SOLID-4 ), ( Part Type: Safety Light Receiver ), ( Country Of Manufacture: Usa )

Review LEUZE 48 Inch Safety Light Curtain Transmitter Receiver

The **Leuze SD4T30-1200H Solid-4 48V Safety Light Curtain Transmitter** and its paired **SD4R30-1200E Receiver** form a high-performance, compact, and highly reliable safety light barrier system designed for demanding industrial applications where precise object detection and maximum safety integrity are critical. This advanced light curtain operates on a **48V DC power supply**, ensuring efficient energy use while maintaining robust performance in harsh environments. The **Solid-4 technology** integrates four independent light beams into a single, slim-profile sensor, providing enhanced detection accuracy and redundancy without sacrificing installation space. With a **detection range of up to 1200 millimeters**, this system excels in applications requiring long-reach monitoring, such as conveyor systems, automated material handling, or large-scale packaging lines, where even minor misalignments or obstructions must be detected with millimeter precision. The transmitter features a **highly durable, IP67-rated housing**, making it resistant to dust, water, and contaminants, while its **compact and modular design** allows for seamless integration into existing machinery or automated processes. The **solid-state construction** eliminates moving parts, reducing wear and tear and ensuring long-term reliability with minimal maintenance requirements.

The **SD4R30-1200E Receiver** complements the transmitter by providing a robust and versatile output interface, supporting **TTL, relay, or PNP/NPN signal outputs** to accommodate a wide range of control systems. This flexibility ensures seamless integration with PLCs, safety controllers, or other industrial automation equipment, allowing operators to customize the system s response based on specific safety or process requirements. Both the transmitter and receiver are engineered to meet **EN ISO 13849-1 Category 3, PL d** and **IEC 61496-1** safety standards, guaranteeing compliance with stringent industrial safety regulations while delivering high-performance protection against unauthorized access, collisions, or material jams. The **adjustable sensitivity and configurable detection zones** enable fine-tuning to accommodate varying object sizes, shapes, and speeds, further enhancing the system s adaptability across diverse applications. Whether deployed in high-speed production lines, automated warehouses, or critical safety barriers, this light curtain system delivers uncompromising precision, durability, and safety making it an indispensable component for modern industrial automation.

### **Pros and Cons of buying a Leuze SD4T30-1200H (Solid-4) Safety Light Curtain Transmitter and SD4R30-1200E Receiver**

#### **Overview**

The Leuze SD4T30-1200H (transmitter) and SD4R30-1200E (receiver) form a **Solid-4** safety light curtain system designed for industrial applications requiring high reliability, fast response times, and compliance with safety standards (e.g., EN ISO 13849, IEC 61508). This system is commonly used in automated machinery, robotics, and hazardous area protection.

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### **Pros**

1. **High Safety Integrity Level (SIL) and Performance Level (PL)**

- The system is rated for **SIL 3** (up to 10 years) and **PL e** (Performance Level "e"), making it suitable for critical safety applications where catastrophic failures must be minimized.

- Compliance with **EN ISO 13849** and **IEC 61508** ensures it meets stringent safety standards in industrial automation.

2. **Fast Response Time**

- The system has a **response time of 10 ms**, which is critical for applications requiring immediate reaction to obstacles (e.g., robot collision prevention, door protection).

3. **Wide Detection Range**

- The **1,200 mm (47.2 inches) detection width** provides ample coverage for medium to large machines, making it versatile for various applications like conveyor systems, press protection, or robotic workcells.

4. **Robust and Durable Design**

- Built for **industrial environments**, the system is resistant to dust, moisture (IP67 rating), and temperature fluctuations (operating range: -20 C to 60 C).

- The **solid-state construction** reduces wear and tear compared to mechanical safety devices.

5. **Easy Installation and Integration**

- The **plug-and-play design** simplifies setup, with direct connection to safety controllers (e.g., Leuze s own controllers or third-party PLCs via safety outputs).

- Compatible with **Leuze s Safety Controller (e.g., SC4000)** for seamless integration into larger safety systems.

6. **Low Maintenance Requirements**

- Unlike mechanical guards, safety light curtains require minimal maintenance, primarily involving periodic checks for alignment and sensor health.

7. **Flexible Mounting Options**

- Can be mounted on walls, ceilings, or directly on machinery, adapting to various spatial constraints.

8. **Compatibility with Safety Standards**

- Meets **OSHA, CE, and other regional safety regulations**, reducing compliance risks in global manufacturing environments.

9. **Long Lifespan**

- With proper maintenance, the system can operate reliably for **many years**, reducing replacement costs.

10. **Scalability**

- Can be expanded with additional units (e.g., multiple SD4T30 transmitters paired with receivers) for larger protection zones.

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### **Cons**

1. **High Initial Cost**

- Safety light curtains, especially high-performance models like the SD4 series, are **more expensive** than basic safety switches or mechanical guards. The cost may be a barrier for small businesses or budget-constrained projects.

2. **Limited Detection of Small or Transparent Objects**

- While effective for most solid objects, the system may struggle with **small, reflective, or transparent obstacles** (e.g., thin wires, plastic sheets), requiring additional safeguards in such cases.

3. **Alignment Sensitivity**

- Misalignment between the transmitter and receiver can lead to **false triggers or blind spots**. Precise installation is required to avoid downtime.

4. **Power Dependency**

- Requires a stable power supply (typically 24V DC). Power fluctuations or outages can disrupt operation, necessitating backup solutions in critical applications.

5. **Potential for Signal Interference**

- Strong electromagnetic interference (EMI) or other light sources (e.g., bright sunlight, lasers) in the vicinity may occasionally cause **false activations**, though the system is designed to minimize this.

6. **Limited Customization**

- Unlike some programmable safety devices, the SD4 series has **fixed parameters** (e.g., detection width, response time). Users cannot adjust these settings, which may limit flexibility in unique applications.

7. **Training and Expertise Required**

- Proper installation, programming, and troubleshooting require **technical knowledge**, which may necessitate hiring trained personnel or external support.

8. **Potential for Obstruction by Dust or Debris**

- While IP67-rated, **accumulation of dust or debris** on the sensors over time can degrade performance, requiring periodic cleaning.

9. **Not Suitable for All Environments**

- Extreme conditions (e.g., highly corrosive atmospheres, extreme temperatures outside the specified range) may reduce lifespan or reliability.

10. **Dependency on Safety Controller**

- The system must be paired with a **compatible safety controller** (e.g., Leuze SC4000 or equivalent). Mismatched controllers can lead to compatibility issues.

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### **Conclusion**

The **Leuze SD4T30-1200H transmitter and SD4R30-1200E receiver** are a **high-quality, reliable safety light curtain solution** ideal for industrial applications requiring **fast response times, high safety integrity, and compliance with strict standards**. Their robustness, ease of integration, and low maintenance make them a strong choice for **automated machinery, robotics, and hazardous area protection**.

However, the **higher upfront cost, sensitivity to alignment and interference, and limited customization** may pose challenges for some users. Businesses with **budget constraints or unique environmental conditions** should carefully evaluate whether this system aligns with their needs or if alternative safeguards (e.g., mechanical guards, two-hand controls) would be more suitable.

For applications where **safety, speed, and compliance are paramount**, the SD4 series is a **highly recommended choice**. For cost-sensitive or less critical applications, a lower-tier safety light curtain or alternative safety device may be more appropriate.

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### **Final Recommendation**

- Your application requires **high safety performance (SIL 3/PL e)**.

- Fast response times (

- You need a **durable, low-maintenance** solution for industrial environments.

- Compliance with **EN ISO 13849/IEC 61508** is mandatory.

- The system can be integrated into your existing safety architecture (e.g., with Leuze or compatible controllers).

- Budget is a critical constraint (explore lower-cost safety curtains or mechanical guards).

- Your application involves **frequent small/transparent object interference** (may require supplementary safeguards).

- You lack in-house expertise for installation and troubleshooting (training or external support may be needed).

For most **high-risk industrial automation applications**, this system provides **excellent value in terms of safety, reliability, and long-term cost efficiency**.

Details:

height : 4 in. Size: length : 52 in. Brand: Leuze.

Will there be a dock or forklift. Consignee: B. Country of Manufacture: USA. LOCAL PICK-UP, Prefer to pick it up yourself.

Need it urgently. Items in Lot: After the return period has ended, you can no longer product. We choose the carrier.

Your phone number and business name. Next Day Second Air Services are available. Model: SOLID-4. All goods are so AS IS' and WITH ALL FAULTS meaning, without limitation, that.

Condition: Used. Receiver Has Some Broken Plastic On Lenses.

part #: sd4t301200h prices

• $224.99-$2999.99

specifications oelemot:

• brand: Leuze
• mpn: Sd4t30-1200h
• model: Solid-4
• part type: Safety Light Receiver
• country of manufacture: Usa

general oelemot:

• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
• condition: Used

seller oelemot:

• rating: 99.8%
• # reviews: 64046
• city: Middlebury, Indiana

payments oelemot:

• other
• credit card: Visa
• wallet: Google-pay

offer oelemot:

• best offers: True
• started: April 7, 2026
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• sold: 0

shipping oelemot:

• class: Standard, Expedited, One-day
• transit: 2-4 Days
• service: UPS Ground, UPS 2nd Day Air, UPS Next Day Air
• carrier: UPS
• type: Calculated
• cost: $96.44

returns oelemot:

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