Part of the Omron Photoelectric Sensors series — see the full model table, lifecycle status and replacement parts.
Omron E3FA-TP11 2M — 20 m Through Beam, PNP, Pre Wired
SKU: E3FA-TP11 2MUSD 16.00
20 m through-beam photoelectric pair, M18 ABS body, PNP output, red LED, pre-wired 2 m cable, IP67/IP69K.
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Product Overview
The Omron E3FA-TP11 2M is the PNP version of Omron's 20 m through-beam sensor pair, sold as a matched set in M18 ABS plastic housings with 2 m cables already attached. manufactured by Omron Corporation. Hengyixin Automation ships this sensor from our Xiamen warehouse with a 30-day DOA return window and a datasheet PDF included in the box.
One unit is the emitter, the other is the receiver with a PNP open-collector output that pulls high to the supply when the beam is unbroken (Light-ON, the factory default). The 2M suffix marks the pre-wired 2 m cable — the M12-connector sibling at the same 20 m family adds a quick-disconnect lead at higher cost.
For longer runs or detachable leads, the M12-connector E3FA-TP21 is the same sensor with a 4-pin quick-disconnect pigtail.
Key Features
- 0.5 ms response time
- 10-30 VDC ±10 % supply
- 100 mA load current at 30 VDC max
- ABS M18 threaded barrel housing
- SKU: E3FA-TP11 2M
- Series: E3FA M18 cylindrical ABS photoelectric sensor
- Voltage: 10-30 VDC
Best-Fit Applications
- Trigger generation at the exit of a vibratory bowl feeder into the next station
- Long-distance detection through a clear zone where a diffuse sensor would false-trigger on the floor
- Door / gate beam on automatic storage and retrieval aisles
Buying Checklist
- Pick E3FA-TP21 (no 2M) when you need 20 m range or want a detachable M12 lead.
- Pick E3FA-TN11 2M instead when the PLC expects NPN sinking — same housing, same cable, opposite output polarity.
- Pick E3FA-RP11 2M with an E39-R1S reflector for glossy targets where the beam might reflect off the surface itself.
Technical Specifications
| Model | E3FA-TP11 2M (matched emitter + receiver pair) |
|---|---|
| Series | E3FA M18 cylindrical ABS photoelectric sensor |
| Sensing Method | Through-beam (separate emitter and receiver) |
| Sensing Distance | 20 m |
| Light Source | Red LED, 624 nm |
| Output Type | PNP open-collector, NO (Light-ON / Dark-ON wire-selectable) |
| Supply Voltage | 10-30 VDC ±10 % |
| Load Current | 100 mA max at 30 VDC |
| Response Time | 0.5 ms |
| Connection | Pre-wired 2 m cable (4-core receiver, 2-core emitter) |
| Housing | ABS plastic, M18 threaded barrel |
| Protection | IP67 / IP69K |
FAQ for E3FA-TP11 2M
What is the difference between E3FA-TP11 2M and E3FA-TN11 2M?
Both are 20 m through-beam pairs in M18 ABS housings with pre-wired 2 m cables. The TP11 is the PNP (sourcing) output version; the TN11 is the NPN (sinking) output version. Pick the one that matches the PLC input type — most European and Asian PLCs default to PNP, but many Omron CJ-series built-in inputs default to NPN unless explicitly switched. The TP11 wires straight into a sourcing input; the TN11 needs a sinking input or a relay interface.
Does E3FA-TP11 2M come as a pair or just one sensor?
Each order of the E3FA-TP11 2M is sold as a matched pair — one emitter and one receiver in the same M18 ABS housing. The emitter has no output lead; the receiver has the 4-core cable (power, output, light-on / dark-on, ground). For matched sets at longer range or with M12 leads, see E3FA-TP21 (20 m set, M12) or E3FA-TN21 2M (20 m set, NPN).
Can the E3FA-TP11 2M detect clear bottles or shiny film?
Not reliably. A standard through-beam sensor requires the target to actually break the beam — clear glass or PET, wet film, and shiny metal may pass the beam by refracting it around the target rather than blocking it. For those applications, use a polarised retro-reflective sensor (the E3FA-RP11 2M with an E39-R1S reflector) or a clear-bottle sensor from the E3FB family.
How is Light-ON / Dark-ON selected on the E3FA-TP11?
By wiring — the white or pink control wire (depending on the Omron drawing for that generation) is tied to either +V or 0 V to pick Light-ON (output ON when beam is unbroken) or Dark-ON (output ON when beam is broken). The mechanical switch on the back of some E3FA generations selects the same pair via a knob; for the pre-wired 2M set, the wire is the only control. The factory default is Light-ON.
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