Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN - Rectangular Sensors with Non-Terminated Cables
OMRONRectangular Sensors with Non-Terminated Cables

OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN

The OMRON E3T-SR21 2M is a rectangular photoelectric sensor with a non-terminated cable, operating on 12-24V DC with an NPN output and a 2 m cable length. This sensor is part of OMRON's rectangular sensor line…

SKU 3G-OTH-157727

Also listed as: E3TSR212M · E3T SR21 2M · E3T-SR21-2M

Brand
OMRON
Item
Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN
Category
Rectangular Sensors with Non-Terminated Cables
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
E3T-SR21 2M

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The OMRON E3T-SR21 2M is a rectangular photoelectric sensor with a non-terminated cable, operating on 12-24V DC with an NPN output and a 2 m cable length. This sensor is part of OMRON's rectangular sensor line, designed for industrial sensing applications.

Frequently Asked Questions

What is the OMRON E3T-SR21 2M photoelectric sensor used for?

The OMRON E3T-SR21 2M is a rectangular photoelectric sensor used for object detection in industrial automation, packaging, and material handling. It operates on 12-24V DC with NPN output and a 2 m non-terminated cable, making it suitable for tight spaces and reliable sensing in manufacturing lines.

What are the specifications of the OMRON E3T-SR21 2M?

The OMRON E3T-SR21 2M is a rectangular photoelectric sensor with a non-terminated cable, 12-24V DC supply, NPN output, and 2 m cable length. It is part of OMRON's rectangular sensor line, designed for industrial sensing. For detailed specs, consult the OMRON datasheet.

Where to buy the OMRON E3T-SR21 2M worldwide?

3G Electric supplies the OMRON E3T-SR21 2M photoelectric sensor worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this OMRON sensor.

How to install the OMRON E3T-SR21 2M photoelectric sensor?

Mount the OMRON E3T-SR21 2M securely on a stable surface, connect the 12-24V DC power and NPN output per the wiring diagram, and adjust the sensing distance as needed. Ensure the non-terminated cable is properly terminated and protected from mechanical stress. Follow OMRON's installation guide for best results.

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 rectangular sensors with non-terminated cables. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN, 2 m (MPN E3T-SR22 2M)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN, 2 m (MPN E3T-SR22 2M)
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, PNP, 2 m (MPN E3T-SR24 2M)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, PNP, 2 m (MPN E3T-SR24 2M)
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN (MPN E3T-FD11)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN (MPN E3T-FD11)
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, PNP, 2 m (MPN E3Z-R81)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, PNP, 2 m (MPN E3Z-R81)
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, PNP (MPN E3T-FD13)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, PNP (MPN E3T-FD13)
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN (MPN E3T-FD12)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN (MPN E3T-FD12)

More from OMRON

View all OMRON parts
Rectangular inductive proximity sensor with non-terminated cable, unshielded, and 3-wire configuration. Operates on 10-30V DC supply voltage. Suitable for non-contact detection of metal objects in industrial automation applications such as position sensing, part presence detection, and conveyor monitoring
OMRON
Rectangular inductive proximity sensor with non-terminated cable, unshielded, and 3-wire configuration. Operates on 10-30V DC supply voltage. Suitable for non-contact detection of metal objects in industrial automation applications such as position sensing, part presence detection, and conveyor monitoring
Rectangular photoelectric sensor with zinc housing and prewired cable terminated with bare wires. Operates on 10-30V DC supply. NEMA 6P enclosure rating permits use in wet or dusty environments. Suitable for non-contact object detection in industrial automation applications such as packaging, material handling, and assembly lines
OMRON
Rectangular photoelectric sensor with zinc housing and prewired cable terminated with bare wires. Operates on 10-30V DC supply. NEMA 6P enclosure rating permits use in wet or dusty environments. Suitable for non-contact object detection in industrial automation applications such as packaging, material handling, and assembly lines
Rectangular photoelectric sensor for non-contact object detection in industrial automation. Operates on 10-30V DC with selectable NPN or PNP output. Features a 2 m non-terminated cable for flexible installation in packaging, material handling, and conveyor systems
OMRON
Rectangular photoelectric sensor for non-contact object detection in industrial automation. Operates on 10-30V DC with selectable NPN or PNP output. Features a 2 m non-terminated cable for flexible installation in packaging, material handling, and conveyor systems
The OMRON TL-W5E2 is a shielded inductive rectangular proximity sensor with a normally closed (NC) output, operating on 10-30V DC supply voltage. It features a 3-wire configuration with a non-terminated cable for flexible installation. This sensor is used for non-contact detection of metal objects in industrial automation applications such as conveyor systems, packaging machinery, and assembly lines
OMRON
The OMRON TL-W5E2 is a shielded inductive rectangular proximity sensor with a normally closed (NC) output, operating on 10-30V DC supply voltage. It features a 3-wire configuration with a non-terminated cable for flexible installation. This sensor is used for non-contact detection of metal objects in industrial automation applications such as conveyor systems, packaging machinery, and assembly lines
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, PNP, 2 m (MPN E3T-SR23 2M)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, PNP, 2 m (MPN E3T-SR23 2M)
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN, 2 m (MPN E3Z-R61)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 12-24V DC, NPN, 2 m (MPN E3Z-R61)
OMRON Photoelectric Sensor: Non-Terminated Cable, 10-30V DC, PNP, 2 m (MPN E3ZM-R81 2M)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 10-30V DC, PNP, 2 m (MPN E3ZM-R81 2M)
OMRON Photoelectric Sensor: Non-Terminated Cable, 10-30V DC, NPN, 2 m (MPN E3ZM-R61 2M)
OMRON
OMRON Photoelectric Sensor: Non-Terminated Cable, 10-30V DC, NPN, 2 m (MPN E3ZM-R61 2M)