Omron D4NL-4HFG-B Guard Lock Safety Door Switch – 24VDC Solenoid Lock, 3NC + 2NC, IP67

The Omron D4NL-4HFG-B is a guard lock safety-door switch from the proven D4NL series, designed to provide reliable personnel and machine protection in industrial environments. Featuring a 24VDC solenoid lock with mechanical release and power-to-lock operation, it ensures that access doors remain securely locked until the system is safely de-energized.

This model provides a 3NC + 2NC (slow-action) contact configuration for dual-channel safety monitoring, along with an orange LED indicator for easy status visibility. Built with a rugged plastic housing and IP67 protection, the D4NL-4HFG-B offers dependable interlocking performance for machinery, conveyors, and automated systems.

Technical Specifications

Model: D4NL-4HFG-B Omron
Series: D4NL Guard Lock
Function: Guard lock safety-door switch
Actuator Type: Key-operated
Lock Type: Solenoid lock (Power to Lock)
Solenoid Voltage: 24 VDC
LED Indicator: Orange status indicator
Contact Configuration: 3NC + 2NC (slow-action)
Form Factor: Cuboid enclosure
Connection Method: Screw terminals
Ideal For: Industrial machinery, automation panels, conveyor systems

Electrical Specifications

• Rated Solenoid Voltage: 24 VDC
• Power to Lock: Yes (solenoid lock with mechanical release)
• Contact Configuration: 3NC (door) + 2NC (lock monitor)
• Switch Action: Slow action
• Contact Type: Electromechanical
• Applicable Loads: Standard and microload circuits

I/O & Communication Interfaces

• Door Contacts: 3NC
• Lock Monitor Contacts: 2NC
• Actuator Type: Standard key (resin)
• Key Position: Bottom insertion
• Lock Logic: Power to lock (solenoid lock with mechanical release)
• Indicator Type: Orange LED (status indicator)
• Communication: Not supported (hardwired safety circuit)

Mechanical Specifications

• Housing Material: Plastic
• Head Material: Plastic
• Shape: Cuboid
• Mounting: Adjustable head orientation
• Conduit Size: M20
• Holding Force: 1300 N
• Connection Method: Screw terminal

Environmental Specifications

• Operating Temperature: -10°C to +55°C
• Storage Temperature: -25°C to +65°C
• Humidity: 5–95% RH (non-condensing)
• Protection Rating: IP67
• Application Category: Industrial machine safety systems

Compliance & Certifications

• CE Marked: Yes
• UL / cUL Listed: Yes
• TÜV Certified: Yes
• EN ISO 14119 Compliant: Yes
• IEC/EN Standards: IEC/EN 60947-5-1, IEC/EN 60947-5-3
• Lead-Free & RoHS Compliant: Yes

Key Features & Benefits

✅ Power-to-Lock Design. Ensures doors stay locked while equipment is energised.

✅ 3NC + 2NC Safety Contacts. Redundant safety monitoring for door and lock functions.

✅ 24VDC Solenoid Lock. Reliable and low-maintenance operation.

✅ LED Status Indicator. Quick visual confirmation of lock status.

✅ IP67 Protection. Resistant to dust, moisture, and industrial contaminants.

✅ Flexible Mounting. Adjustable head for multi-directional installation.

📦 Order the Omron D4NL-4HFG-B from Drive Outlet Megastore

At Drive Outlet Megastore, we provide unbeatable Omron D4NL-4HFG-B prices, supplying robust and compliant safety-door interlock switches for industrial automation and personnel safety. Built for long-lasting reliability and precise control in any manufacturing environment.

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Lock safety in. Unlock confidence. Omron engineered — only at Drive Outlet Megastore.