ENMG / LIMIT SWITCHES
ET8166-CF-2
Omnidirectional nylon-rod limit switch
A sealed mechanical position switch with a flexible omnidirectional rod, a changeover contact and an integral two-metre three-core cable.
Request a quote ↗TECHNICAL DATA / ET8166-CF-2
Specifications & selection.
- SPDT / 1 CO silver-alloy contacts.
- IP67 sealed construction.
- Model-specific actuator drawing and operating data.
| Parameter | Value |
|---|---|
| Model | ET8166-CF-2 |
| Actuator | Nylon rod taper Ø3–6 mm with metal spring section |
| Operating force OF | 200 gf |
| Release force RF | 100 gf |
| Pretravel PT | 30 mm |
| Overtravel OT | Not specified in original selection table |
| Differential travel MD | Not specified |
| Cable | 2 m, three cores; longer cable by factory order |
| Parameter | Value |
|---|---|
| Height datum in drawing | 163.8 mm |
| Body width / depth | 31.2 / 28.2 mm |
| Mounting-flange height | 65 mm |
| Mounting centers | 21 mm horizontal / 56 mm vertical |
| Through holes | Ø4.2 mm; check exact diagonal mounting arrangement |
| Drawing tolerance | ±0.3 mm |
| Mass | Not specified |
| Parameter | Value |
|---|---|
| Load voltage | 250 VAC / 30 VDC, resistive |
| Current conflict | Original product image: 5 A; prose technical table: 3 A. Confirm current production rating. |
| Operating speed | 0.5 mm/s to 50 cm/s |
| Mechanical frequency | 120 operations per minute |
| Initial contact resistance | 30 mΩ |
| Insulation resistance | ≥100 MΩ; prose specifies 500 VDC test |
| Dielectric withstand | 500 VAC between non-connected terminals; 1500 VAC live parts to non-live parts / earth; 50/60 Hz, 1 minute |
| Mechanical / electrical life | ≥5 million at rated OT / ≥500,000 operations; exact electrical test load requires confirmation |
| Ambient | −25 to +80 °C in general technical image |
| Protection | IP67; no continuous-submersion rating established |
Selection & installation notes
- The shared prose gives a much smaller 39.84 × 22.5 × 17.4 mm body; it conflicts with the model-specific original drawing. The dimensions above follow the original drawing. Confirm the production outline before mounting.
- The published 5 A and 3 A ratings conflict. Obtain the exact switch and load-category rating before load sizing; do not infer an inductive-load rating from the resistive figure.
- For rod models, 30 mm is pretravel PT, not a verified maximum overtravel. Set the mechanism using the exact permissible travel; do not use the switch as a mechanical end stop.
- Identify COM, NO and NC by the supplied wiring diagram and a de-energized continuity check; the typical brown/blue/black color mapping can vary by batch.
- Protect the cable entry from pulling and repeated bending, preserve seals and isolate the circuit before wiring. IP67 does not imply resistance to all liquids, pressure washing or indefinite immersion.
- This position switch page does not establish a safety integrity level or suitability as a complete emergency-stop device.
Based on the official Chinese product page and selection charts ↗. Checked 2026-09-15. Confirm the current specification for the exact model when ordering.
TECHNICAL RESOURCES
Plan your integration.
ENMG control components — English product-family brochure.
This is a product-family brochure. Request a model-specific datasheet and installation drawing with your inquiry.