E3FA-DN11

Product information

Product Overview

The E3FA-DN11 is an Omron E3FA cylindrical photoelectric sensor: M18 axial body, diffuse reflective sensing at 100 mm, NPN output, polarity-free red light, IP67/IP69K and a 2 m pre-wired cable.

This page is written for buyers and maintenance engineers sourcing E3FA-DN11 as a new part or a replacement. Every specification below is taken from Omron’s own published catalogue data for this model; no third-party or estimated figures are used, and where Omron publishes two different figures for the same parameter, both are shown.

Omron catalogue position: Sensing › Photoelectric Sensors › E3FA/E3FB. Official catalogue code for this model: E3FA-DN11-2M.

Why Buyers Specify This Model

M18 cylindrical axial body, 100 mm diffuse range

A cylindrical M18 sensor with axial optics sensing 100 mm in diffuse reflective mode, so no reflector is needed — the target itself returns the light.

Polarity-free red light and manual adjustment

Omron specifies polarity-free red light (wiring polarity does not matter) with manual gain adjustment, which keeps commissioning simple and makes the sensor harder to mis-wire.

NPN output, 0.5 ms response

Output type is NPN with selectable dark-ON / light-ON and a 0.5 ms response time — fast enough for small-part presence detection on a conveyor.

IP67/IP69K and machine-specific accessories

Protection class IP67/IP69K with an ABS housing, 41 mm long, powered from 10 to 30 V DC. Omron lists E39-L182 (flush mounting bracket) and E39-L183 (stainless M18 L-bracket) as accessories.

Technical Specifications (Official Omron Catalogue Data)

Parameter	Official value
Shape	Cylindrical axial
Sensing method	Diffuse reflective
Sensing distance	100 mm
Setting method	Manual adjustment
Connection method	Cable
Cable length	2 m
Output type	NPN
Operation mode	Dark-ON, Light-ON
Response time	0.5 ms
Material housing	ABS
Thread size	M18
Product Length (unpacked)	41 mm
Type of light	Polarity free red light
Power supply voltage	10-30 V
Degree of protection (IP)	IP67/IP69K

Source: Omron official product catalogue data for E3FA-DN11-2M, published at industrial.omron.eu. Values are reproduced as published by Omron. Where the official data carries a condition or footnote, the headline figure is shown — request the official datasheet for the qualified figure.

Lifecycle & Availability

Omron’s official product data for this model carries no end-of-production or discontinuation notice — it is listed as a current catalogue item. That is the lifecycle status as published by Omron, not a stock statement on our side.

Availability, condition of supply and lead time are quoted per enquiry because they depend on quantity and on where the goods are held. Tell us the quantity and the date you need it and we will answer with a firm position rather than a promise.

Official Documentation

These are Omron’s own documents for this model and its family. Download them directly from Omron’s document server:

• Datasheet: e424 e3fa e3ra e3fb e3rb photoelectric sensors datasheet en
• Manual: 1898037-6 e3fa- instruction manual en
• Manual: 5844945-2 e3fa- instruction manual en

Full technical detail — conversion periods, wiring diagrams, derating and installation requirements — is in these documents. If you need a specific figure we do not show here, ask and we will point you to the exact page rather than paraphrase it.

Matching Accessories and Spare Parts

The list below is Omron’s own accessory and spare-part association for this model — the parts Omron itself couples to it for commissioning and for maintenance. Buying them together avoids the usual problem of a spare unit arriving without the bracket, key or battery needed to run it.

Associated accessories

Part	Official description
E39-L182 OMS	E3FA/R flush mounting bracket
E39-L183 OMS	M18 L-type mounting bracket, stainless steel (SUS304)

Ordering This Part

Send us the full catalogue number E3FA-DN11, the quantity, your delivery address and the date you need the goods. If the part is a replacement, attach a photograph of the existing unit’s nameplate — it removes any doubt about the revision, the output type or the supply voltage, which are the three things that most often cause a wrong part to be shipped.

We do not publish stock, condition or lead time as fixed figures here, because they change: they are quoted per enquiry against the quantity and date you actually need. If a machine is down, say so and give us the required window — that is the information that determines how we source it.

Frequently Asked Questions

DN11 or DP12 — which one do I need?

NPN versus PNP output, and range. The E3FA-DN11 is NPN at 100 mm; the E3FA-DP12 is PNP at 300 mm. Choose on your PLC input type first, then on the sensing distance your mechanics allow.

Diffuse, retro-reflective or through-beam?

This is the diffuse version — simplest to install, but its range depends on the target’s reflectivity. If the target is dark or matte and you need distance, a retro-reflective or through-beam model in the E3FA/E3FB range is the correct choice.

How long is the cable?

Omron’s catalogue lists this model as E3FA-DN11-2M — a 2 m pre-wired cable. Confirm the exact cable variant against your installation so we quote the right catalogue number.

Availability?

Current production; no discontinuation notice in Omron’s official catalogue data.