Wieland SNA 4043K/KM/KE, SNO4043K | Safety Relay for Emergency Stop, Safety Gates and Light Barriers

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Monitoring of Emergency Stop, Safety Gates and Light Barriers

The SNA 4043K and SNO4043K, are the perfect solution for ensuring the protection of both people and machinery across various industrial applications. Designed to monitor critical safety sensors such as emergency stop buttons, safety gate switches, and light barriers, these devices play a pivotal role in maintaining a secure work environment and preventing accidents.

Key Applications:

• Safety of People and Machinery: Our safety relay devices are specifically engineered to safeguard operators and prevent potential accidents. By continuously monitoring safety sensors, they can swiftly stop or disable machinery when necessary, prioritizing the well-being of your workforce.
• Emergency Stop Applications: Equipped with advanced monitoring capabilities, our safety relay devices provide a reliable and rapid means of halting machinery in case of an emergency, minimizing risks and ensuring immediate safety measures.
• Safety Gate Monitoring: Safety gates are essential for securing work areas. Our devices actively monitor safety gate switches to prevent machinery from operating when gates are open or improperly closed, ensuring optimal operator safety.

1. Light Barrier Monitoring: Light barriers are critical for detecting hazards. Our safety relay devices vigilantly monitor light barriers, identifying any interruption in the light beam and promptly stopping machinery to avert potential dangers.

Safety Certifications:

Rest assured that our safety relay devices comply with stringent safety standards, providing utmost reliability in critical scenarios. They are rated up to PL e (Performance Level e) in accordance with EN ISO 13849-1 and up to SILCL 3 (Safety Integrity Level Claim Limit) following EN 62061. These certifications underscore the devices’ high safety performance and dependability in safety-critical applications.

Key Features:

• Stop Category 0 (EN 60204-1): With the Stop Category 0 feature, our safety relay devices ensure an immediate and safe stop of machinery without any delays once the emergency stop function is activated.
• Single-Channel or Two-Channel Control: Offering versatility in system design, our devices support both single-channel and two-channel control methods, tailored to meet your specific safety requirements.
• Automatic Start Function: Our safety relay devices can feature an automatic start function, allowing machinery to be restarted automatically after clearing a safety stop condition, streamlining your automation processes.
• Manual Reset without Monitoring: For added flexibility, our devices may offer a manual reset option without requiring continuous monitoring, ideal for certain scenarios where manual intervention is preferred.
• Cross Monitoring: Ensuring the integrity of your safety system, our devices employ cross monitoring to verify the proper functioning of various safety-related components, enhancing overall safety.
• 3 to 4 Enabling Current Paths: To provide enhanced safety control, our safety relay devices boast 3 normally open (NO) contacts and 1 normally closed (NC) contact or 4 normally open (NO) contacts, offering multiple enabling current paths.
• Extended Temperature Range: Operating seamlessly in temperatures up to 65°C, our devices are perfectly suited for diverse environmental conditions, ensuring reliable performance under varying circumstances.

Experience Unparalleled Safety Automation:

The SNA 4043K and SNO4043K safety relay devices epitomize top-of-the-line safety automation, empowering your industrial setup with the latest safety solutions. Prioritize safety without compromising on efficiency—choose our exceptional safety relay devices for your machinery protection needs.

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