Omron D4NL-4EFG-B Guard Lock Safety Door Switch – 24VDC Solenoid Lock, 2NC/1NO + 1NC/1NO, IP67

The Omron D4NL-4EFG-B is a guard lock safety-door switch designed for high-integrity machine safety applications requiring both door and lock monitoring. It features a 24VDC solenoid lock with mechanical release, providing secure interlocking to prevent hazardous access during machine operation.

This model offers 2NC/1NO door contacts and 1NC/1NO lock monitor contacts in a slow-action configuration, ensuring safe and dependable operation feedback. With a durable plastic cuboid housing, IP67 rating, and M20 conduit entries, it’s ideal for heavy-duty industrial environments and automation systems.

Technical Specifications

Model: D4NL-4EFG-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: Yes (10–115 VAC/VDC)
Holding Force: 1300 N
Form Factor: Cuboid enclosure, M20 conduit entries
Connection Method: Screw terminals

Electrical Specifications

• Rated Solenoid Voltage: 24 VDC
• Rated Operating Voltage (LED): 10–115 VAC/VDC
• Contact Configuration: 2NC/1NO (door) + 1NC/1NO (lock monitor)
• Switch Action: Slow action
• Contact Type: Electromechanical
• Rated Insulation Voltage: 250 VAC

I/O & Communication Interfaces

• Door Contacts: 2NC / 1NO
• Lock Monitor Contacts: 1NC / 1NO
• Actuator Type: Standard key (resin)
• Key Position: Bottom insertion
• Lock Logic: Power to lock (solenoid lock with mechanical release)
• Communication: Not supported (hardwired safety device)

Mechanical Specifications

• Housing Material: Plastic
• Head Material: Plastic
• Shape: Cuboid
• Width: 88.5 mm
• Height: 35.5 mm
• Length: 95 mm
• Mounting: Adjustable head orientation
• Conduit Size: M20
• Number of Conduits: 2

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 machinery 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

Key Features & Benefits

✅ 24VDC Solenoid Lock. Provides secure mechanical interlocking for machine safety.

✅ 2NC/1NO + 1NC/1NO Contacts. Dual safety feedback for both door and lock monitoring.

✅ 1300 N Holding Force. Reliable mechanical resistance against forceful entry.

✅ IP67-Rated Housing. Durable, dust-tight, and water-resistant for harsh conditions.

✅ Adjustable Head. Multiple mounting orientations for flexible installation.

✅ M20 Conduit Entries. Easy wiring and integration with industrial enclosures.

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

At Drive Outlet Megastore, we provide unbeatable Omron D4NL-4EFG-B prices, offering premium-quality interlocking solutions for industrial safety. Engineered for reliability, durability, and compliance with international standards.

Check stock now or request a quote.

Safety assured. Precision engineered. Omron reliability — only at Drive Outlet Megastore.