OMRON TL-W3MB1 — Rectangular Inductive Sensors
Omron TL-W3MB1: Inductive proximity sensor, flat rectangular, non-flush, Sn 3 mm, PNP NO output, 2 m/5 m or robot cable.

Status: In production
Brand: Omron
Product: Inductive proximity sensor, flat rectangular, non-flush
Rated sensing distance (Sn): 3 mm
Output: PNP, NO
Connection: Cable, 2 m or 5 m (robot cable 2 m)
Power supply voltage: 12 to 24 V DC
Degree of protection: IP67
The Omron TL-W3MB1 is a TL-W series inductive proximity sensor in a 10 × 6 × 30 mm flat rectangular housing; Omron notes that it is only 6 mm thick yet senses 3 mm. The heat-resistant ABS case is non-flush (unshielded); rated sensing distance (Sn) is 3 mm ±10% and setting distance 0 to 2.4 mm. The standard sensing object is a 12 × 12 × 1 mm iron plate; response frequency is at least 600 Hz and differential travel at most 10% of the sensing distance. It mounts with M3 flat-head screws; the Y92E-D3 bracket is supplied.
Supply voltage is 12 to 24 V DC (operating range 10 to 30 V DC, ripple 10% max.) and current consumption 15 mA max. at 24 V DC with no load. The PNP open-collector NO output switches up to 100 mA at 30 V DC with a residual voltage of 1 V max. Reverse polarity protection and a surge suppressor are included. The three options differ only in the cable: 2 m or 5 m standard PVC cable, or a 2 m bend-resistant robot cable (-R). The sensor is rated IP67 and operates from −25 to 70 °C.
Omron TL-W3MB1 technical specifications
| General | |
|---|---|
| Housing shape | Flat rectangular |
| Dimensions | 10 × 6 × 30 mm |
| Mounting type | Non-flush (unshielded) |
| Detection | |
| Rated sensing distance (Sn) | 3 mm ±10% |
| Setting distance | 0 to 2.4 mm |
| Differential travel | 10% max. of sensing distance |
| Detectable object | Ferrous metal (the sensing distance decreases with non-ferrous metal) |
| Standard sensing object | Iron, 12 × 12 × 1 mm |
| Response frequency | 600 Hz min. |
| Electrical characteristics | |
| Power supply voltage | 12 to 24 V DC (operating range 10 to 30 V DC), ripple 10% max. (peak-to-peak) |
| Current consumption | 15 mA max. at 24 V DC (no load) |
| Protection circuits | Reverse polarity protection, surge suppressor |
| Outputs and indicators | |
| Output type | PNP open collector, NO (normally open) |
| Load current | 100 mA max. at 30 V DC max. |
| Residual voltage | 1 V max. (at 100 mA load current with 2 m cable) |
| Indicator | Detection indicator (red) |
| Environmental | |
| Operating / storage temperature | Operating: −25 to 70 °C (with no icing or condensation); upper limit 40 °C where oil resistance is required; storage: −25 to 70 °C |
| Ambient humidity | 35% to 95% (with no condensation) |
| Degree of protection | IP67 (IEC 60529); oil-resistant to in-house standards |
| Vibration resistance | Destruction: 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y and Z directions |
| Shock resistance | 500 m/s², 3 times each in X, Y and Z directions (destruction) |
| Clearance to surrounding metal | l = 3 mm, m = 0 mm, n = 12 mm |
| Mutual interference distance | Face-to-face (A) 90 mm, side-by-side (B) 30 mm |
| Mechanical and connection | |
| Housing material | Heat-resistant ABS |
| Sensing surface | Heat-resistant ABS |
| Cable | 2.9 mm dia. vinyl-insulated (PVC) round cable, 3 conductors (0.14 mm² cross-section, 0.9 mm insulator diameter) |
| Cable options | Standard PVC cable 2 m or 5 m; bend-resistant robot cable (-R) 2 m |
| Mounting | M3 flat-head screws; mounting hole distance 17 ±0.2 mm |
| Tightening torque | 0.98 N·m max. |
| Weight (packaged) | Approx. 70 g |
Omron TL-W3MB1 models
| Card code | Omron order code | Cable | Cable length |
|---|---|---|---|
| TL-W3MB1-2M | TL-W3MB1 2M | Standard PVC cable | 2 m |
| TL-W3MB1-5M | TL-W3MB1 5M | Standard PVC cable | 5 m |
| TL-W3MB1-R-2M | TL-W3MB1-R 2M | Bend-resistant PVC robot cable | 2 m |
Key features
- Only 6 mm thick, 10 × 6 × 30 mm ABS housing, non-flush
- Rated sensing distance 3 mm, response frequency 600 Hz min.
- PNP open-collector NO output; load current up to 100 mA
- 2 m or 5 m PVC cable, or 2 m robot cable (-R)
- IP67, oil-resistant to in-house standards
- Y92E-D3 mounting bracket supplied
TL-W3MB1 ordering codes
| Part number | Description |
|---|---|
| TL-W3MB1 2M | PNP, NO, 2 m PVC cable |
| TL-W3MB1 5M | PNP, NO, 5 m PVC cable |
| TL-W3MB1-R 2M | PNP, NO, 2 m bend-resistant robot cable |
| TL-W3MB2 2M | PNP, NC, 2 m PVC cable |
| TL-W3MC1 2M | NPN, NO, 2 m PVC cable |
| TL-W3MC2 2M | NPN, NC, 2 m PVC cable |
TL-W3MB1 accessories
Accessories listed by the manufacturer for this product (ordered separately):
| Part number | Description |
|---|---|
| Y92E-D3 | Mounting bracket, stainless steel (SUS304), for TL-W3; supplied with the sensor |
| XN2A-1470 | e-CON cable plug connector (Omron), applicable to TL-W1R5 and TL-W3 pre-wired models |
Other Omron Rectangular Inductive Sensors
- OMRON TL-W1R5MB1-2M — Inductive proximity sensor, flat rectangular, non-flush
Models from other brands: Rectangular Inductive Sensors
Is this inductive sensor right for your application?
Share the metal target to be detected (material, size), the required sensing distance, the mounting type (flush / non-flush), ambient conditions (oil, coolant, washdown, temperature) and your PLC input (PNP/NPN, NO/NC); let’s select the right inductive sensor and connection cable together.
All product specifications are subject to change without notice. Source: Omron Europe product page (https://industrial.omron.eu/en/products/TL-W3MB1-2M, https://industrial.omron.eu/en/products/TL-W3MB1-5M, https://industrial.omron.eu/en/products/TL-W3MB1-R-2M), TL-W family page (https://industrial.omron.eu/en/products/tl-w) and TL-W (CSM_TL-W_DS_E_12_5) datasheet (https://files.omron.eu/downloads/latest/datasheet/en/tl-w_standard_flat_inductive_proximity_sensors_datasheet_en.pdf) (accessed 28 September 2026).
