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

SKU D4BL-2DRG-A

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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.

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

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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.

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