Part of the Omron Photoelectric Sensors series — see the full model table, lifecycle status and replacement parts.
Omron E3JK-TR11-C — 40 m Through Beam, Relay, AC/DC
SKU: E3JK-TR11-CUSD 21.00
E3JK-series M18 through-beam photoelectric pair, 40 m red LED range, SPDT relay output, AC/DC 24-240 V supply, E39-L40 bracket included.
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Product Overview
The Omron E3JK-TR11-C is the 40 m red-LED through-beam pair in the E3JK compact family. 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.
It is two separate heads -- an emitter and a receiver -- that mount on opposite sides of a conveyor, lane, or guard opening, and it closes a SPDT relay contact when the beam is intact (or when it is broken, depending on the rear switch position). The 40 m range covers the long spans where a diffuse-reflective or retro-reflective sensor would not reach: wide carton lanes, pallet-transfer points, large door interlock spans, and boundary detection on long production cells.
The TR11-C ships as a pair (E3JK-TR11-L emitter + E3JK-TR11-D receiver); the bare E3JK-TR11 without the -C ships as the pair only, no bracket.
Key Features
- 20 ms or less response time, single-turn sensitivity pot on the receiver
- AC/DC 24-240 V +/- 10% free-voltage supply at 2 W / 30 mA
- SPDT relay output, 250 VAC 3 A / 30 VDC 3 A resistive, Light-ON / Dark-ON rear switch
- E3JK-series M18 cylindrical through-beam photoelectric sensor pair
- SKU: E3JK-TR11-C
- Series: E3JK-TR11-C
- Voltage: 24-240 V
Best-Fit Applications
- Stack-height control at the end of an oven or curing tunnel
- Door-interlock confirmation on a large guard span where a diffuse sensor would not reach
- Truck-dock bay detection with the emitter on one wall and the receiver on the opposite wall
Buying Checklist
- Pick E3JK-DR11-C for 2.5 m diffuse-reflective detection with no reflector needed at all.
- Pick E3JK-RR11-C for 7 m retro-reflective detection on a single-side mount with the E39-R1 reflector.
- Pick E3JK-TR11-C for the 40 m RED-LED through-beam range with relay output and the E39-L40 bracket in the box.
Technical Specifications
| Sensing Method | Through-beam pair (separate emitter + receiver) |
|---|---|
| Sensing Range | 40 m (red 624 nm LED) |
| Standard Target | 75 mm dia. or larger opaque object |
| Output Type | SPDT relay, 250 VAC 3 A / 30 VDC 3 A resistive |
| Output Logic | Light-ON / Dark-ON selectable on the rear switch |
| Supply Voltage | AC/DC 24-240 V +/- 10%, 50/60 Hz, 2 W / 30 mA |
| Response Time | 20 ms or less |
| Indicators | Orange operation LED + green stability LED |
| Connection | Pre-wired 2 m oil-resistant PVC cable |
| Housing | ABS plastic, M18 cylindrical, IP64 |
| Operating Temperature | -25 to +55 C (storage -40 to +70 C) |
| Mounting | E39-L40 right-angle bracket included (-C bundle) |
FAQ for E3JK-TR11-C
What is the actual sensing range of the E3JK-TR11-C?
40 m on a red 624 nm LED. The 15 m figure sometimes seen on older datasheets is not correct for this SKU -- the 5 m short-range red-LED model is the E3JK-TR12-C, and the 40 m IR model is the E3JK-TR13. Pick the TR11-C for the long span, the TR12-C for the short span.
What is the difference between E3JK-TR11 and E3JK-TR11-C?
The C suffix is the bundle code: the E3JK-TR11-C ships with one E39-L40 right-angle mounting bracket in the box. The bare E3JK-TR11 ships as the sensor pair only. Both have the same 40 m red-LED, SPDT relay, AC/DC 24-240 V specifications -- the bracket is the only difference. Order the -C if you do not already have the E39-L40 in stock; order the bare SKU if your cabinet already has the bracket on the shelf.
Can the E3JK-TR11-C feed a PLC high-speed counter?
Not directly -- the SPDT relay has a 20 ms response time, which caps the count speed at about 25 counts per second. For high-speed count inputs pick the E3JK-TP11-C (PNP) or E3JK-TN11-C (NPN) transistor-output siblings, which respond in 1 ms or less. The relay output is for switching contactor coils, motor starters, indicator lamps, and PLC discrete inputs that do not need high speed.
Does the E3JK-TR11-C work on a 24 VDC cabinet?
Yes. The AC/DC 24-240 V free-voltage supply accepts the same 24 VDC, 120 VAC, and 240 VAC inputs on the same two terminals. The only cabinet concern is the AC-line transient -- route the sensor cable away from VFD output cables and from the inverter's braking-resistor leads, since the optical receiver's 3,000 lx incandescent / 11,000 lx sunlight ambient tolerance does not protect against conducted EMI on the supply line.
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