OMRON D4B-4A11N Safety Limit Switch

The OMRON D4B-4A11N is a robust and reliable safety limit switch designed for general purpose applications. It features a durable aluminum die-cast enclosure with an IP67 rating, providing excellent protection against dust and water ingress. This switch utilizes a resin roller lever actuator with a diameter of 17.5 mm, ensuring smooth and consistent operation.

Key Features:

• Contact Configuration: The D4B-4A11N is equipped with 2 normally-closed (NC) contacts, ensuring safe operation by maintaining connectivity unless triggered.
• Operating Mechanism: It employs a slow-action mechanism, which provides a reliable and controlled switching operation.
• Direct Opening Mechanism: Certified for direct opening, this feature ensures that the contacts open immediately upon activation, enhancing safety in critical applications.
• Connection and Installation: The switch uses a terminal block for easy connection and features an M20 conduit size with bottom cable entry, simplifying installation.
• Environmental Durability: It operates effectively in temperatures ranging from -40°C to 80°C and can withstand high humidity levels up to 95% RH.
• Electrical Ratings: Supports a maximum switched voltage of 400 V AC and 250 V DC, with contact current ratings suitable for a variety of applications.

Safety and Reliability:

• The D4B-4A11N offers a high level of vibration resistance and shock resistance, ensuring stable performance even in harsh environments.
• It meets stringent safety standards with a Class I protection classification and includes a ground terminal for enhanced electrical safety.

Technical Specifications:

• Degree of Protection: IP67
• Body Material: Aluminum
• Body Dimensions: 74 x 40 x 43 mm
• Mounting Holes: 4
• Operating Frequency: Up to 30 operations per minute electrically and 120 operations per minute mechanically

This safety limit switch is ideal for applications requiring reliable and safe operation in demanding environments, making it a trusted choice for industries needing robust and dependable safety solutions.