C4-RD - THE ECONOMIC SOLUTION FOR THE SMALLEST OF SPACES - Safety Light Curtains

Oct 25, 2026

Upload by Jake

C4-RD is an economic safety light curtain designed for hazardous point protection, providing high safety performance for finger and hand protection. It supports protective field heights from 150 mm up to 1,200 mm with variants in 50 mm steps and integrates seamlessly into machines thanks to thin brackets and the absence of blind zones. Rugged construction enhances availability, while standardized connectivity and status LEDs simplify commissioning, diagnostics, and system integration.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages12

Reading Time30 min

AccessFree to download

Product description

At a glance

Your benefits

Detailed technical data

Features

Safety-related parameters

Functions

Interfaces

Electrical data

Mechanical data

Ambient data

Other information

Ordering information

P R O D U C T I N F O R MAT I O N C4-RD THE ECONOMIC SOLUTION FOR THE SMALLEST OF SPACES Safety light curtains THE ECONOMIC SOLUTION FOR THE SMALLEST OF SPACES | | | | | | --- | --- | --- | --- | | Additional information
Detailed technical data ............3
Ordering information ..............4
Dimensional drawing ..............5
Connection diagrams ..............6
Accessories ...................... 7 | | | | Product description The C4-RD safety light curtain is the economic solution for hazardous point protection with the highest level of safety for finger and hand protection. With protective field heights from 150 mm and variants available in 50 mm increments, the C4-RD is ideally suited for use in applications with small access areas to the hazardous point. The thin, clever holder concepts and absence of blind zones enables seamless integration into machines. The rugged design of C4-RD also ensures high availability, and the standardized connectivity and status LEDs guarantee easy commissioning and diagnostics. With a comprehensive range of safety sensors, safe control solutions and a worldwide service network, SICK is the optimal partner for functional safety. At a glance • Protective field heights: 150 mm to 1,200 mm, available in 50 mm increments • Thin, clever brackets and absence of blind zones • Rugged housing and high electromagnetic compatibility (EMC) • Standardized connectivity and status LEDs • Resolutions: 14 mm and 30 mm • Typical scanning range: Up to 4.5 m Your benefits • your economic solution for hazardous point protection with the highest level of safety for finger and hand protection • Tailor-made protective field heights for your applications, ideal for small access areas to the hazardous point, [e.g. in](e.g. in) the electronics industry • Easy commissioning and seamless machine integration thanks to the compact design and space-saving mounting • Increased availability of your plant due to the rugged metal housing and high electromagnetic compatibility -[www.sick.com/c4-rD](www.sick.com/c4-rD) For more information, simply enter the link or scan the QR code and get direct access to technical data, CAD design models, operating instructions, software, application examples, and much more. 2 Sa f e t y l ig ht c u r ta i nS | S ic K 8026353/2023-03-27 Subject to change without notice Detailed technical data More detailed data can be found in [the operating instructions. Download](the operating instructions. Download g www.sick.com)[ g](the operating instructions. Download g www.sick.com)[ www.sick.com](the operating instructions. Download g www.sick.com) Features | resolution | 14 mm / 30 mm (depending on type) | | --- | --- | | Scanning range | 4.5 m | | Protective field height | 150 mm ... 1,200 mm (depending on type) | | response time | ≤ 18 ms | | No blind zones | yes | | Synchronization | Optical synchronisation | Safety-related parameters | type | Type 4 (IEC 61496-1) | | --- | --- | | Safety integrity level | SIL3 (IEC 61508) | | category | Category 4 (ISO 13849-1) | | Performance level | PL e (ISO 13849-1) | | PfhD (mean probability of a dangerous failure per hour) | 3.7 x 10-9 | | tM (mission time) | 20 years (ISO 13849-1) | | Safe state in the event of a fault | At least one OSSD is in the OFF state. | Functions | Protective operation | l | | --- | --- | Interfaces | System connection | Male connector M12, 5-pin | | --- | --- | | Display elements | LEDs | | Fieldbus, industrial network
Integration via Flexi Soft safety controller | CANopen, DeviceNet™, EtherCAT®, EtherNet/IP™, Modbus TCP, PROFIBUS DP, PROFINET 1) | 1) For additional information on [Flexi Soft](Flexi Soft g www.sick.com/flexi_Soft)[ g](Flexi Soft g www.sick.com/flexi_Soft)[ www.sick.com/flexi_Soft](Flexi Soft g www.sick.com/flexi_Soft). Electrical data | Protection class | III (IEC 61140) | | --- | --- | | Supply voltage VS | 24 V DC (19

FAQs

What are the available protective field heights for the C4-RD safety light curtain?

The protective field heights range from 150 mm to 1,200 mm, with variants available in 50 mm increments.

Does the C4-RD have blind zones?

No. The document states “No blind zones: yes,” enabling seamless hazardous point protection.

What safety-related standards and performance levels does C4-RD meet?

It is specified as Type 4 (IEC 61496-1) with SIL3 (IEC 61508), Category 4 (ISO 13849-1), and performance level PL e (ISO 13849-1).

What system interfaces and scanning parameters are supported?

The document lists system connections including CANopen, DeviceNet™, EtherCAT®, EtherNet/IP™, Modbus TCP, PROFIBUS DP, and PROFINET, with a typical scanning range up to 4.5 m and resolutions of 14 mm and 30 mm depending on type.

Oct 25, 2026

Upload by Jake