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Fluke
Fluke 80K-40 High Voltage Probe
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Fluke 80K-40 HV probe: 0…±40 kV DC/peak AC, 1000:1, 1000 MΩ, meter Zin 10 MΩ, CAT I only. RFQ + selection help.
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Key parameters
Measuring range
0 kV to ±40 kV DC or peak AC; 28 kV rms AC (energy-limited / Overvoltage Category I circuits only)
Accuracy
DC: 0–20 kV and 35–40 kV ±2%; 20–35 kV ±1% @ 20–30 °C (add 1% outside). AC: ±5% at 60 Hz. Requires meter Zin 10 MΩ ±1%
Output
1000:1 divider into host DMM/voltmeter (banana plug)
Supply
Passive probe (no power supply)
Protection
Not IP-rated; molded plastic body / Type B probe per IEC 61010-031
Ambient temperature
Operating 0 to 50 °C; storage −20 to +60 °C; RH 80% @ 30 °C / 50% @ 40 °C
Fits energy-limited high-voltage measurements when you need a passive 1000:1 divider probe to ±40 kV DC or peak AC into a 10 MΩ DMM — Category I circuits only, not power distribution.
Key advantages
- ±40 kV class — 0…±40 kV DC or peak AC; 28 kV rms AC on energy-limited / Overvoltage Category I circuits only.
- 1000:1 divider — Input resistance 1000 MΩ; requires meter Zin 10 MΩ ±1%.
- Published accuracy — DC ±1% to ±2% by range at 20–30 °C; AC ±5% at 60 Hz.
- IEC 61010-031 Type B — Pollution Degree 2; CAT I only — not for power distribution.
Typical applications
- Energy-limited / Overvoltage Category I high-voltage DC or peak AC checks to ±40 kV.
- Lab and equipment HV points where a 1000:1 banana-plug divider feeds a 10 MΩ DMM.
- AC rms limited to 28 kV on energy-limited circuits per OEM datasheet.
Selection guide
- CAT I energy-limited only — not for power distribution buses or CAT III/IV work.
- Host meter must be 10 MΩ ±1% for stated accuracy.
- Choose 80K-40 (±40 kV) vs 80K-15 (±15 kV) by working voltage; derate above 2000 m altitude.
- State host DMM model, max voltage, quantity, and ship-to.
Common mistakes
- Using on power distribution buses or CAT III/IV work — CAT I energy-limited only.
- Pairing with a meter that is not 10 MΩ ±1% — stated accuracy requires that Zin.
- Ignoring altitude derate above 2000 m (40→28 kV peak).
- Ordering 80K-15 when working voltage needs the ±40 kV class.
When to RFQ / what to tell us
- Max voltage (DC/peak AC / rms AC) and CAT I energy-limited confirmation.
- Host DMM model and Zin (must be 10 MΩ ±1%).
- Quantity and ship-to.
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Specs
| Spec | Value |
|---|---|
| SKU | 32843 |
| Brand | Fluke |
| Model | 80K-40 High Voltage Probe |
| Product type | highvoltageprobe |
| Product name | Fluke 80K-40 High Voltage Probe |
| Measuring Range | 0 kV to ±40 kV DC or peak AC; 28 kV rms AC (energy-limited / Overvoltage Category I circuits only) |
| Accuracy | DC: 0–20 kV and 35–40 kV ±2%; 20–35 kV ±1% @ 20–30 °C (add 1% outside). AC: ±5% at 60 Hz. Requires meter Zin 10 MΩ ±1% |
| Output Signal | 1000:1 divider into host DMM/voltmeter (banana plug) |
| Supply Voltage | Passive probe (no power supply) |
| Ip Rating | Not IP-rated; molded plastic body / Type B probe per IEC 61010-031 |
| Ambient Temperature | Operating 0 to 50 °C; storage −20 to +60 °C; RH 80% @ 30 °C / 50% @ 40 °C |
| Sensor Type | Resistive high-voltage divider probe |
| Division Ratio | 1000:1 |
| Input Resistance | 1000 MΩ |
| Required Meter Impedance | 10 MΩ ±1% |
| Safety Rating | IEC 61010-031 Type B, Pollution Degree 2; CAT I energy-limited circuits only — NOT for power distribution |
| Altitude | 2000 m nominal; 2000–5000 m derate working voltage 40→28 kV peak |
| Approvals | IEC 61010-031 |
Documents
FAQ
Q: What voltage can it measure? A: 0 kV to ±40 kV DC or peak AC; 28 kV rms AC — energy-limited / Overvoltage Category I only.
Q: What meter impedance is required? A: 10 MΩ ±1%. Divider is 1000:1 with 1000 MΩ input resistance.
Q: What should I send for a quote? A: Max voltage, host DMM Zin/model, CAT I confirmation, quantity, ship-to. Compatible with systems using Fluke 80K-40 — we do not claim authorized-dealer status.
Links
| Parameter | Value |
|---|---|
| Measuring range | 0 kV to ±40 kV DC or peak AC; 28 kV rms AC (energy-limited / Overvoltage Category I circuits only) |
| Accuracy | DC: 0–20 kV and 35–40 kV ±2%; 20–35 kV ±1% @ 20–30 °C (add 1% outside). AC: ±5% at 60 Hz. Requires meter Zin 10 MΩ ±1% |
| Output | 1000:1 divider into host DMM/voltmeter (banana plug) |
| Supply | Passive probe (no power supply) |
| Protection | Not IP-rated; molded plastic body / Type B probe per IEC 61010-031 |
| Ambient temperature | Operating 0 to 50 °C; storage −20 to +60 °C; RH 80% @ 30 °C / 50% @ 40 °C |
| Approvals | IEC 61010-031 |
| Sensor type | Resistive high-voltage divider probe |
| Notes | OEM Fluke 80K-40/80K-6 instruction sheet Rev.10. No Instrumart. |
| Division Ratio | 1000:1 |
| Input Resistance | 1000 MΩ |
| Required Meter Impedance | 10 MΩ ±1% |
| Safety Rating | IEC 61010-031 Type B, Pollution Degree 2; CAT I energy-limited circuits only — NOT for power distribution |
| Altitude | 2000 m nominal; 2000–5000 m derate working voltage 40→28 kV peak |