Omron D4DS-K2 Vertical Mounting Operation Key for Safety Door Switches

Technical Overview

The Omron D4DS-K2 is a vertical-mounting operation key (mechanical actuator) engineered for use with Omron's D4DS, D4NS, D4NL, and D4GL series of safety door switches and electromagnetic locks. This heavy-duty actuator provides reliable mechanical interlocking for industrial machinery guards and enclosures. It is designed to ensure strict machine safety compliance, triggering the positive opening mechanism of the switch when the safety door is opened.

Key Features

Designedspecificallyforverticalmountingonslidingorhingedsafetydoors[1.1].
Compatible with Omron D4DS, D4NS, D4NL, and D4GL series safety door switches.
Provides a minimum positive opening travel of 10 mm for reliable circuit breaking.
High structural integrity with a destruction shock resistance of 1,000 m/s².
Maintains an IP67 protection rating when fully mated with the corresponding Omron switch housing.
Compliant with international safety standards including IEC/EN60947-5-1, UL, and CSA.

Technical Specification Matrix

Parameter	Value
Product Type	Operation Key / Switch Actuator
Mounting Orientation	Vertical
Compatible Switch Series	D4DS, D4NS, D4NL, D4GL
Minimum Positive Opening Travel	10 mm
Minimum Positive Opening Force	58.84 N
Key Insertion Force	15 N max
Key Extraction Force	30 N max
Shock Resistance (Destruction)	1,000 m/s² min
Shock Resistance (Malfunction)	300 m/s² min
Weight	Approx. 10.4 g

Industrial Applications

1. Robotic Welding Cell Access Guarding

Installed on the vertical access doors of automated robotic welding cells. The D4DS-K2 key mounts vertically to the door frame and securely inserts into the D4NS safety switch to lock the cell and confirm closure before the robot initiates its cycle.

Problem Solved

Prevents operators from accidentally bypassing or entering hazardous robotic work zones while heavy machinery is actively welding, ensuring compliance with strict industrial machine guarding standards.

Vertical MountingSafety InterlockRobotic CellPositive Opening ForceMachine Guarding

2. CNC Machining Center Safety Interlock

Utilized on vertical sliding enclosures of heavy-duty CNC milling machines. The actuator's high malfunction shock resistance (300 m/s²) ensures the safety key does not accidentally trigger a fault due to the intense vibrations generated during heavy material removal.

Problem Solved

Stops the CNC spindle automatically and immediately if the vertical door is forced open, protecting the machinist from moving parts and flying debris without suffering from nuisance trips due to machine vibration.

CNC Enclosure300 m/s² Malfunction ShockVibration ToleranceSafety Door SwitchVertical Slide Door

3. High-Speed Packaging Conveyor Gates

Attached to the vertically hinged gates of high-throughput automated packaging lines. Utilizing its strict 10 mm positive opening travel, it mechanically forces the safety circuit open the exact moment the latch is separated.

Problem Solved

Ensures an immediate, fail-safe shutdown of high-speed conveyor belts and packaging arms when maintenance personnel open the gate, effectively eliminating dangerous pinch-point hazards.

Positive Opening TravelPackaging ConveyorHinged GateFail-Safe ShutdownMechanical Actuator