Omron D4N-4A20

Technical specifications

Manufacturer

Omron

Manufacturer part no.

D4N-4A20

Type

Limit switch

Application

Mechanical position or travel detection in machinery. Any use in a safety function requires the exact manufacturer ratings and application validation.

Used with

A mechanically compatible target or cam, mounting arrangement and wiring circuit selected for the exact switch.

Material housing

Plastic

Actuator type

Roller lever

Actuator detail

Resin lever, Resin roller

Connection method

Terminal block

Conduit size

M20

Cable entry direction

Bottom

Number of contacts, normally-open

1

Number of contacts, normally-closed

1

Make before break

No

Switch action

Slow action

Technical documents (1)

• Omron D4N specifications and ordering table

Key features

• Roller lever
• Resin lever, Resin roller
• Terminal block
• Slow action

About the Omron D4N-4A20

The actuator geometry, contact action and cable-entry arrangement distinguish variants in this family. A matching housing appearance alone does not establish that two switches can replace each other.

What is the D4N-4A20 used for?

Mechanical position or travel detection in machinery. Any use in a safety function requires the exact manufacturer ratings and application validation.

Lifecycle and successor

To be confirmed.

Before you order

What to photograph or confirm so the right unit is quoted.

Match the complete part number and actuator type. Confirm operating direction, travel, force, mounting dimensions and mechanical clearance. Check normally-open/normally-closed contact counts and switch action against the circuit. Confirm conduit size, connector or cable length and the required environmental rating. For safety-related applications, verify the exact model documentation and the complete circuit design before selection.