Omron

Omron D4BL-2DRG-A D4BL Series Guard Lock Safety-Door Switch

SKU D4BL-2DRG-A

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Omron

  • Product No.: D4BL-2DRG-A

  • Country of origin:Japan

  • Product Type: Guard Lock Safety-Door Switches

  • Payment: T/T, Western Union

  • Weight: 800g

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Securing hazardous machinery workspaces, this heavy-duty Omron D4BL-2DRG-A industrial safety interlock features a robust 24 VDC solenoid-lock and mechanical-release system engineered to prevent unauthorized gate access. Built with a rugged die-cast aluminum housing, this Type 2 safety switch integrates dual monitoring capabilities, tracking both the position of the physical protective door and the status of the locking mechanism. Standardized with a G1/2 conduit entry, this unit is pre-configured for seamless integration into high-reliability industrial safety control circuits.

Features

  • Robust Locking Mechanism: Mechanical release combined with a 24 VDC solenoid lock ensures heavy guard doors remain closed until unsafe conditions subside.
  • Multi-Directional Head Configuration: Offers four variable mounting directions for simple physical installation on diverse door configurations.
  • High-Visibility Status Indicators: Equipped with dual-color LED diagnostics (orange and green) operating across 10 to 115 VAC/VDC.
  • Enhanced Safety Performance: Low-level coded switch conforming to EN ISO 14119 standards for bypass protection.
  • Heavy Ingress Protection: Rated to IP67, providing resilient sealing against dust, oil, and liquid exposure in harsh environments.

Applications

  • Robotic assembly cell perimeters and hazardous work zones.
  • Heavy industrial machinery access enclosures.
  • Packaging line sorting areas with high-inertia rotation hazards.
  • Automated materials handling and palletizing systems.

Technical Specifications

Parameter Specification Value
Manufacturer Omron
Model Code D4BL-2DRG-A
Lock Method Solenoid lock / Mechanical release (Power-to-Lock)
Solenoid Rated Voltage 24 VDC
Switch Contacts 2NC (slow-action) + 1NC (slow-action)
Conduit Thread Size G1/2 (2-conduit style)
Indicator Lamp Rating 10 to 115 VAC or VDC (Orange/Green LEDs)
Mechanical Durability 1,000,000 operations minimum
Electrical Durability 500,000 operations minimum (10 A resistive load at 250 VAC)
Operating Velocity Range 0.05 to 0.5 m/s
Ingress Protection Rating IP67 (EN60947-5-1)
Standards Compliance Type 2, Low Level coding (EN ISO 14119)
Device Weight 0.8 kg
Shipping Weight (Calculated) 2.0 kg

Empirical Engineering Insights

Alternative Models & Compatibility

The Omron D4BL-2DRG-A operates via a Power-to-Lock mechanism. If your safety system architecture requires guard locking upon a complete control system power failure (Power-to-Unlock), the D4BL-1 series should be specified instead. Ensure your safety relay logic distinguishes between locking configurations to prevent unexpected gate releases during voltage dips.

Application Pitfalls & Engineering Notes

Since this model is a Power-to-Lock device, a complete loss of electrical power will instantly release the guard locking force. Do not deploy this unit on heavy, high-inertia machinery that lacks a dynamic braking system, unless backup power systems or supplementary safety mechanisms are in place to secure the door during deceleration cycles.

Commissioning & Wiring Tips

During commission, make sure to wire the internal orange/green LED indicator module to mirror the locking circuit logic. Applying voltage to the solenoid coil should trigger the orange LED, signaling a locked state, while the green LED can be wired to prove safe access state when the loop is de-energized. Use proper sealing glands on the G1/2 conduits to maintain the IP67 physical barrier.

Installation Guidelines

CRITICAL WARNING:

Isolate all physical power sources and perform full electrical lockout/tagout procedures before handling terminal blocks or mounting the switch head. Residual electrical charge must be confirmed to be zero to avoid hardware damage or personnel injury.

1
Determine the switch-head orientation. To change the actuator insertion direction, remove the head screws, rotate the head to the preferred position, and securely tighten to the recommended torque specifications.
2
Mount the primary switch body and the matching actuator on the protective guard frame. Ensure exact mechanical alignment to prevent excessive key friction or premature mechanical wear during lock engagements.
3
Route the wires through the G1/2 conduit entry. Connect your 24 VDC supply lines to the internal solenoid terminals, and integrate the NC safety monitoring loops directly to your designated dual-channel safety relay.

FAQ

Does the Omron D4BL-2DRG-A lock or unlock when energized?

The D4BL-2DRG-A is a Power-to-Lock (Solenoid Lock / Mechanical Release) model, which means applying 24 VDC to the internal solenoid engages the locking mechanism. When de-energized, the door is unlocked.

Can I rotate the key insertion entry head?

Yes, the switch head can be rotated in up to four different directions. You can adjust the configuration on-site by removing the retaining screws, turning the head, and tightening it securely.

What standard conduit entry thread is used on this safety switch?

This model is equipped with a standard G1/2 industrial conduit thread entry, supporting standardized glands and sealed liquid-tight conduits.

How are the dual LED indicators powered on this model?

The built-in orange and green LED indicators are designed for high flexibility, operating seamlessly across a voltage range of 10 to 115 VAC or VDC.

View all FAQs →

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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
Japan

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