Omron D4SL-N2RFA-D Guard Lock Safety-Door Switch for Machine Guarding

Product Overview

Buy Omron D4SL-N2RFA-D Switch online. The D4SL-N2RFA-D is a D4SL-N Series guard lock safety-door switch designed for monitoring and locking machine guards in industrial automation and industrial control systems. Its six-contact configuration provides three normally closed door-monitor contacts and three normally closed lock-monitor contacts.

This Omron switch uses a mechanical locking mechanism with 24 VDC solenoid release, a terminal-block connection, a G1/2 conduit outlet, and a 24 VDC orange LED indicator. The resin-head construction, IP67 protection rating, and minimum holding force of 1,300 N support dependable operation in machine control and other industrial applications.

The D4SL-N2RFA-D is suitable for electrical equipment manufacturers, OEM machinery, automation components, and maintenance programs requiring correctly specified replacement parts for guarded production equipment.

Technical Specifications & Features

• Brand: Omron
• Manufacturer Part Number: D4SL-N2RFA-D
• Category: Switch
• Product Series: D4SL-N
• Contact Configuration: 6 contacts, 3NC door monitor and 3NC lock monitor
• Locking Method: Mechanical lock with 24 VDC solenoid release
• Solenoid Voltage: 24 VDC
• Indicator: 24 VDC orange LED
• Rated Current: AC-15: 1.5 A for terminals 11-42, 21-52, and 21-22; 1 A for other terminals; DC-13: 0.22 A
• Rated Voltage: 120 VAC for AC-15; 125 VDC for DC-13
• Frequency: 50/60 Hz
• Rated Insulation Voltage: 150 V
• Connection Type: Terminal block
• Conduit Outlet: G1/2
• Material: Plastic housing with resin head
• Release Key Type: Standard metal release key
• Holding Force: 1,300 N minimum
• Weight: Approximately 330 g
• Operating Temperature: −10 to 55°C with no icing
• Protection Rating: IP67; Type 4X for indoor use only under UL and CSA
• Certification: cURus recognized to UL 508; CE conformity to EN ISO 14119 and EN 60947-5-1; RoHS Directive

The six normally closed contacts provide dedicated circuits for door and lock monitoring. Selected NC contacts incorporate a certified direct-opening mechanism, supporting safety-related guard monitoring when the switch is integrated into a properly designed control system.

The mechanical-lock and solenoid-release arrangement is intended for applications in which a guard remains locked until an external control signal energizes the release solenoid. Terminal-block wiring and the adjustable operation-key insertion direction support practical installation in industrial equipment.

Applications

The Omron D4SL-N2RFA-D is used in industrial automation, factory automation, machine control, manufacturing equipment, robotic cells, packaging machinery, assembly systems, and other installations requiring monitored access through a movable guard or safety door.

It is also suitable for industrial control panels, OEM equipment, electrical equipment maintenance, automation components, and replacement parts programs where the specified contact arrangement, locking logic, conduit size, and connection method match the original machine design.

Bulk purchase and RFQ are available. Contact us for quantity pricing, lead time, and shipping options.