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OMRON Photoelectric Sensor: M18 Threaded, Built-in Connector, 4 - Pin M12, 10-30V DC - Cylindrical Sensors with Built-in Connectors
OMRONCylindrical Sensors with Built-in Connectors

OMRON Photoelectric Sensor: M18 Threaded, Built-in Connector, 4 - Pin M12, 10-30V DC

The OMRON E3FA-DN21 is a plastic-bodied M18 threaded photoelectric sensor from the E3FA series, featuring a built-in 4-pin M12 direct connector. It operates on a 10-30V DC supply voltage with an NPN output, designed…

SKU 3G-OTH-37987

Also listed as: E3FADN21 · E3FA DN21

Brand
OMRON
Item
Photoelectric Sensor: M18 Threaded, Built-in Connector, 4 - Pin M12, 10-30V DC
Category
Cylindrical Sensors with Built-in Connectors
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OMRON
Manufacturer Part Number
E3FA-DN21
Series
E3FA
Type
Built-in Connector, NPN
DC
10-30V
Pin M12
4 -
Body Material
Plastic
Electrical Connection
M12
Nominal Sensor Diameter
M18 Threaded
DC Supply Voltage Rating
10-30V DC
Electrical Installation Type
Direct Connector

Technical Documents

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OMRON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OMRON E3FA-DN21 is a plastic-bodied M18 threaded photoelectric sensor from the E3FA series, featuring a built-in 4-pin M12 direct connector. It operates on a 10-30V DC supply voltage with an NPN output, designed for cylindrical sensor applications with built-in connectors.

Frequently Asked Questions

What is the OMRON E3FA-DN21 photoelectric sensor used for?

The OMRON E3FA-DN21 is used for object detection in industrial automation, such as presence sensing, counting, and positioning on conveyor lines or packaging machinery. Its M18 threaded plastic body and built-in M12 connector simplify installation in tight spaces. It operates reliably in factory environments with 10-30V DC power and NPN output.

What are the specifications of the OMRON E3FA-DN21?

The OMRON E3FA-DN21 is a plastic-bodied M18 threaded photoelectric sensor from the E3FA series. It has a built-in 4-pin M12 direct connector, operates on 10-30V DC supply voltage, and provides NPN output. The electrical installation type is direct connector, and the nominal sensor diameter is M18 threaded.

Where to buy the OMRON E3FA-DN21 worldwide?

You can source the OMRON E3FA-DN21 through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine OMRON sensors for your automation needs.

How to install the OMRON E3FA-DN21 sensor?

To install the OMRON E3FA-DN21, mount the M18 threaded body into a suitable bracket or hole, then connect the built-in M12 4-pin connector to your control system. Ensure the DC supply voltage is within 10-30V DC and wiring matches NPN output configuration. Follow standard industrial sensor mounting practices for reliable detection.

Used in

Common applications for OMRON
Automotive assembly lines — OMRON G2RV-ST500 AC/DC24 slim relays for compact control panel switching
Packaging machinery — OMRON E2E-X5Y1-M1 inductive proximity sensors for position detection of metal parts
HVAC systems — OMRON LY4-DC12 general-purpose relays for fan and compressor control
High-temperature ovens — OMRON E32-D51 fiber-optic cables for non-contact temperature sensing
Material handling — OMRON D4CC3002 limit switches for conveyor belt end-of-travel detection
Machine tool safety — OMRON TZ-1GV22 snap-action switches for interlock and guard monitoring

OMRON Products

3G Electric supplies OMRON cylindrical sensors with built-in connectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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