Omron D4n Series Lever Limit Switch, 1 NO/1 NC, IP67, Metal Housing, 240V, 10A

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SGD124.94

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SGD136.18

(inc. GST)

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RS Stock No.:
215-5048
Mfr. Part No.:
D4NH-4ABC
Manufacturer:
Omron
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Brand

Omron

Actuator Type

Lever

Product Type

Limit Switch

Contact Configuration

1 NO/1 NC

IP Rating

IP67

Housing Material

Metal

Contact Type

Snap Action

Terminal Type

Screw

Switching Current

10A

Series

D4n

Switching DC Voltage

250V

Minimum Operating Temperature

-30°C

Switching AC Voltage

240V

Maximum Operating Temperature

+70°C

Length

72mm

Width

50mm

Depth

30mm

Standards/Approvals

UL, RoHS, CSA, CE, CCC

Hazardous Area Certification

NO

Mounting Orientation

Multi Directional

Conduit Entry

M20

Operating Force

6.4N

Mechanical Life

10000000Cycles

Omron D4n Series Limit Switch, IP67, 10A Switching Current - D4NH-4ABC


This limit switch is a compact, metal-housed device for safety-door and position-sensing applications in industrial automation. It uses a lever actuator to detect mechanical movement and translates that motion into electrical switching for control circuits. The unit is intended for indoor machine safety and equipment guarding where a sealed, conduit-entry device is required.

Features & Benefits


• IP67 sealing provides protection against dust and temporary immersion
• 10A rated snap-action contacts handle common AC loads up to 240V
• Mechanical life of 10,000,000 cycles supports high-cycle operations
• Operating temperature range −30°C to +70°C allows wide thermal use
• 6.4N operating force ensures predictable actuation response
• Screw terminals enable secure wiring with standard crimp terminals

Applications


• Suitable for interlocking protective doors on production machinery
• Used for position sensing on conveyor end stops and Gates
• Ideal for safety monitoring of guards in packaging lines
• Can be used for limit detection in material-handling equipment

What contact arrangements are available for different control needs?


The device uses snap-action contacts with a 1NO/1NC configuration on this variant

other variants in the family offer multi-contact arrangements including dual NC and triple-NC options for varied circuit schemes.

How should conduit and connector choices be managed for installation?


This variant features an M20 conduit entry

installers should use recommended gland types and apply the specified tightening torque to preserve the enclosure seal.

What precautions apply to wiring and Terminal connections?


Use AWG20 to AWG18 (0.5 to 0.75 mm2) conductors with compatible crimp Terminals not exceeding 0.5mm thickness and tighten Terminal screws to the specified torque to prevent loose connections.

How does the switch behave under contact contamination?


The NC contact employs a direct-opening mechanism that forces contact separation to mitigate welding or sticking caused by metal deposition.

Are there any mounting or mechanical limits to observe?


The head can be rotated into four orientations and the ARM lever repositioned left, right or centre

avoid imposing more than 50 N on the shaft and secure with M4 fasteners to the recommended torque.

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