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Endress+Hauser
Endress+Hauser Liquifloat FTS20 Float Switch
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E+H Liquifloat FTS20: liquid float switch; NAMUR or microswitch; G1A gland. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
Point level float switch for liquids; switching by steel-ball tilt from horizontal
Accuracy
NAMUR: switching angle ±12° from horizontal; AC/DC microswitch: upper +25°±6° / lower per KA
Output
NAMUR inductive 2-wire (EN 60947-5-6/5-2) or 3-wire change-over microswitch (max 250 V AC / 150 V DC)
Supply
NAMUR 8.2 V ±2 V via isolating amplifier; AC/DC per contact ratings
Process connection
G1A tapped hole with compression gland; optional counter nut and weight
Wetted parts
Float body PP; cable PVC / PUR / CSM (media-dependent)
Fits simple liquid point level where you need an Endress+Hauser Liquifloat FTS20. Float switch using steel-ball tilt from horizontal, with NAMUR inductive 2-wire (±12° switching angle) or 3-wire change-over microswitch (max 250 V AC / 150 V DC), G1A tapped hole with compression gland, and optional counter nut and weight.
Key advantages
- Principle — Steel-ball tilt float
- Outputs — NAMUR 2-wire or microswitch
- NAMUR angle — ±12° from horizontal
- Connection — G1A gland
- Options — Counter nut / weight
Typical applications
- Tank high/low float.
- Sump pump control.
- Simple liquid presence.
Selection guide
- NAMUR vs microswitch
- Cable length
- Weight option
Common mistakes
- Wrong output for Ex/NAMUR loop.
- Turbulence false trips.
- Ignoring angle ratings.
When to RFQ / what to tell us
- Output/options.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 48546 |
| Brand | Endress+Hauser |
| Model | Liquifloat FTS20 |
| Product type | Float Switch |
| Measuring range | Point level float switch for liquids; switching by steel-ball tilt from horizontal |
| Accuracy | NAMUR: switching angle ±12° from horizontal; AC/DC microswitch: upper +25°±6° / lower per KA |
| Output signal | NAMUR inductive 2-wire (EN 60947-5-6/5-2) or 3-wire change-over microswitch (max 250 V AC / 150 V DC) |
| Supply voltage | NAMUR 8.2 V ±2 V via isolating amplifier; AC/DC per contact ratings |
| Process connection | G1A tapped hole with compression gland; optional counter nut and weight |
Documents
FAQ
Q: Outputs? A: NAMUR or microswitch.
Q: Connection? A: G1A compression gland.
Q: What should I send for a quote? A: Output/options, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Point level float switch for liquids; switching by steel-ball tilt from horizontal |
| Accuracy | NAMUR: switching angle ±12° from horizontal; AC/DC microswitch: upper +25°±6° / lower per KA |
| Output | NAMUR inductive 2-wire (EN 60947-5-6/5-2) or 3-wire change-over microswitch (max 250 V AC / 150 V DC) |
| Supply | NAMUR 8.2 V ±2 V via isolating amplifier; AC/DC per contact ratings |
| Process connection | G1A tapped hole with compression gland; optional counter nut and weight |
| Wetted parts | Float body PP; cable PVC / PUR / CSM (media-dependent) |
| Housing | Polypropylene float |
| Protection | IP68 (immersion depth 20 m / no time-temp limit per KA) |
| Media temperature | Cable-dependent: PVC/PUR typ. +5…+70 °C; CSM −20…+70 °C (see KA) |
| Ambient temperature | −20…+70 °C (NAMUR ambient tables; Ex class dependent) |
| Approvals | ATEX II 2G Ex ia IIB T5 Gb (NAMUR versions); XA02429 Ex safety instructions |
| Notes | OEM KA00180FA3_1719 combined TI/OI + XA02429. Use with Nivotester FTL325N for NAMUR Ex. |
| Process Pressure | ≤ 3 bar at 20 °C |
| Min Density | ≥ 0.8 g/cm³ |