Omron Solenoid Interlock Switch Power to Unlock 24V DC 50mA Contact Current IP67 D4NL Series

Omron D4NL-4EFA-B solenoid interlock switch is designed for precise and safe control in automation and electrical systems. This model features power to unlock functionality, ensuring controlled access to hazardous equipment during maintenance or emergency stops.

The switch operates on a 24V DC supply voltage and houses 1 normally open (NO) and 1 normally closed (NC) safety contact, rated for 50mA contact current. Its robust plastic construction grants protection rating of IP67, making it suitable for harsh industrial environments where dust and water resistance are critical.

Equipped with M20 conduit entry, this switch allows straightforward installation within existing electrical and control systems. Measuring 95mm in length, 88.5mm in width, and 35.5mm in depth, it fits compact spaces without compromising functionality.

Standards and approvals include EN60947-5-1, CSA C22.2 No.14, UL508, UL, and CE, demonstrating compliance to rigorous industrial safety requirements. Although the switch does not include an actuator, it is designed for flexible integration with external actuators in safety interlocking applications.

Common applications encompass factory automation safety interlocks, emergency stop circuits in machinery, and robotic safety systems. The power to unlock feature enhances safety by requiring power to release the lock, preventing accidental or unauthorized access.

Operates at 24V DC supply voltage for industrial applications. Features 1 NO and 1 NC safety contacts ensuring secure power interruption. Constructed with durable plastic housing providing IP67 protection against dust and water.

M20 conduit entry enables easy integration with existing electrical infrastructures. Compact dimensions: length 95mm, width 88.5mm, depth 35.5mm optimize space usage. Contact current rating of 50mA suitable for control circuits.

Complies with EN60947-5-1, CSA C22.2 No.14, UL508, UL, and CE standards. Designed and manufactured in Japan for high quality assurance.

This Omron Safety Interlock Switch is essential in industrial, manufacturing, electrical, and automation environments where safety and controlled equipment access are priorities. It helps organizations meet stringent safety standards and maintain secure operation of hazardous machinery.

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