🔍
D4SL-N4EFA-D4

Omron D4SL-N4EFA-D4 Safety Door Switch

£201.19 inc VAT

In Stock · Delivered in 3–5 Working Days
Estimated UK delivery time, subject to order confirmation, courier services and destination. International delivery times vary.
Technical SpecificationsOmron
Model D4SL-N4EFA-D4 Omron
Series D4SL-N Guard Lock
Supply Voltage 24 VDC
Lock Type Mechanical lock – Power to Release
Rated Insulation Voltage 250 VAC
Contact Type Redundant electromechanical
Connection Type Terminal block (screw terminals)
Key Type Standard mechanical actuator (sold separately)
Communication Not supported (hardwired safety device)
Solenoid Voltage 24 VDC
✓ Genuine OEM Parts✓ 2-Year Store-Backed Warranty✓ Technical Support

Found a Better Price? We’ll Match or Beat It InstantlySend us the competing price or quote for a personalised offer.

🛡️ 24-Month Drive Outlet Warranty

Every product is 100% new, genuine, and backed by our exclusive 2-year warranty. We are an independent supplier and not an authorised distributor. Manufacturer warranties may not apply. See our Terms and Conditions.

SKU: D4SL-N4EFA-D4 Category: Tag: Brand:
Guaranteed Safe Checkout
Extra Features
  • 100% Brand New & Genuine OEM Product
  • Includes Full 2-Year Warranty for Peace of Mind
  • Fast UK & Worldwide Shipping – Fully Tracked
  • Expert Technical Support from Our In-House Engineers
  • Found a Better Price? We’ll Match or Beat It Instantly

Omron D4SL-N4EFA-D4 Safety Door Switch

The Omron D4SL-N4EFA-D4 is a high-performance guard lock safety-door switch designed for reliable operator protection and machine access control. Featuring a power-to-release (mechanical lock) mechanism and a 24VDC solenoid , this model ensures machinery remains safely locked during operation, releasing only under controlled conditions.

Technical Specifications

Model D4SL-N4EFA-D4 Omron
Series D4SL-N Guard Lock
Function Guard lock safety-door switch (bolting type)
Lock Type Mechanical lock – Power to Release
Solenoid Voltage 24 VDC
Contact Configuration 2NC/1NO (door) + 1NC/1NO (lock monitor)
Holding Force 1.3 kN (1300 N)
LED Indicator Built-in (status display)
Form Factor Cuboid – M20 conduit
Colour Black/Red
Ideal For Guarding robots, conveyors, and high-risk automation cells

Electrical Specifications

Supply Voltage 24 VDC
Contact Ratings 120 VAC / 1.5 A
Rated Insulation Voltage 250 VAC
Contact Type Redundant electromechanical
Switch Action Slow action (positive opening)
Solenoid Logic Power to Release (mechanical lock engaged when power is off)
LED Indicator Integrated – power and lock status

I/O & Control Interface

Door Contacts 2NC/1NO
Lock Monitor Contacts 1NC/1NO
Connection Type Terminal block (screw terminals)
Key Type Standard mechanical actuator (sold separately)
Compatible Actuators D4SL-NK1, D4SL-NK2, D4SL-NK3, D4SL-NK5 series
Communication Not supported (hardwired safety device)

Mechanical Specifications

Housing Material Plastic
Head Material Resin
Shape Cuboid
Dimensions (W x H x L) 39 × 39 × 179.9 mm
Mounting Style Chassis / Panel mount
Conduit Entry M20 threaded
Mechanical Durability 1,000,000 operations
Weight 388 g

Environmental Specifications

Operating Temperature -10°C to +55°C
Storage Temperature -25°C to +65°C
Humidity 5–95% RH (non-condensing)
Degree of Protection IP67 (dust-tight and waterproof)
Application Category Industrial machinery and automation safety systems

Compliance & Certifications

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

Related Products & Helpful Links

Frequently Asked Questions

How can I check whether D4SL-N4EFA-D4 is the correct replacement?

Check the exact manufacturer part number, electrical ratings, interface type, mounting and equipment compatibility against your existing equipment and the manufacturer’s datasheet.

How quickly can D4SL-N4EFA-D4 be delivered?

This product is listed as in stock, with estimated UK delivery in 3–5 working days. Delivery depends on order confirmation, courier services and destination.

Where can I check specifications and compatibility?

Review the specification information above and the product’s Downloads or Data Sheets tab, where documents are supplied. Our team can help check part numbers and installation compatibility.

What warranty does Drive Outlet Megastore offer?

Drive Outlet offers its own 2-year return-to-base warranty unless otherwise stated. Manufacturer warranties may not apply; please review the Terms and Conditions before ordering.

Weight 0.388 kg

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Omron Supplier UK – PLC, Sensors, Relays & Machine Automation Parts

Browse Omron products for PLC systems, safety switches, relays, sensors, HMIs, machine automation, control panels and industrial maintenance spares.

⚙️ Genuine OEM Automation Parts
🔎 Search by Part Number
🚚 Fast UK & International Delivery
🛠️ Technical Sourcing Support

Popular Omron Products

Use the product links below as quick routes into this brand. If you already know your part number, use the search bar for the fastest result.

View Omron NX-AD2604 2-Channel Analog Input Module
View Omron NB5Q-TW00B 5.6" QVGA HMI Touchscreen
View Omron NJ501-1300 Sysmac NJ5 Series CPU
View Omron K8DT-PM2CN Monitoring Relay
View Omron W4S1-05D Industrial Ethernet Switch
View Omron NJ-PD3001 Sysmac NJ-Series Power Supply Unit

Shop Omron by Product Category, Series & Specification

Compare Omron parts by PLC family, module type, safety category, sensor output, relay specification, voltage, I/O count and exact model code.

View Omron Modules
View Omron Graphic Terminals
View Omron CPUs
View Omron Relays
View Omron Switches
View Omron Power Supplies
View All Omron Products

Need Help Finding the Right Omron Product?

If you cannot find the exact part number, send us the model code, a photo of the rating plate or the details of the machine it is fitted to. We can help check availability, replacements and suitable alternatives.

Request a Quote / Contact Us

Omron FAQs

How do I find the correct Omron product?

The fastest way is to search using the exact manufacturer part number or model code. You can also browse this brand page by product category, series and specification to compare close alternatives.

What should I check before buying Omron products?

Check the Omron model code, voltage, output type, I/O count, PLC family, safety rating, connector style and compatibility with the existing machine or control panel.

Can you help if my exact Omron part number is not listed?

Yes. Send us the part number, a photo of the label or the machine details and we can check availability, replacement options and suitable alternatives.

Are these products suitable for industrial replacement jobs?

These pages are designed for maintenance teams, panel builders, OEM buyers and engineers who need part-number-led industrial automation spares for repairs, upgrades and breakdown support.

How quickly can you supply Omron products?

Availability depends on the exact product and quantity required. Check the product page or contact us and we can confirm stock position, lead time and shipping options.

View all Omron products

D4SL-N-Guard-Lock-Safety-door-Switch.pdf

Related products

Need help selecting the correct protection/switching hardware?

Tell us your system voltage, current and protection needs — we’ll recommend the correct device and settings.

  • Correct rating & coordination guidance
  • Accessories/options for common panels
  • Fast quotation with alternatives
Request a Quote Contact Us
Or call: 0161 470 2725