Megger S1-1068 10 kV Insulation Resistance Tester
- S1-1068/2 from the ‘Expert Range‘ with high performance diagnostics
The Megger S1-1068 is a 10 kV insulation resistance tester from Megger’s Expert range, designed for maximum performance, safety, and adaptability in the most challenging high-voltage testing environments.
It delivers measurement capability up to 35 TΩ, exceptional noise immunity (8 mA), adaptive filtering for extreme EHV stability, and complete remote control functionality.
The S1-1068 is the go-to choice for utility engineers, OEMs, and service contractors who require a tester that combines high-voltage capability with industry-leading measurement reliability.
↑ The enhanced Megger Insulation Testers have arrived – engineered for high-performance diagnostics! Each unit includes a quick-reference guide conveniently built into the lid, providing trained personnel with instant access to essential information while out in the field.
The Expert range combines everything from the Essential and Advanced ranges. If you work in extreme environments, even 765 kV switch yards, want the additional safety and convenience of remote operation via a USB cable, and full control of the output current, this is the choice for you.
Why choose the Megger S1-1068?
If you need to test high-voltage assets under extreme electrical noise conditions, the S1-1068 provides the combination of higher test voltage, advanced diagnostics, and unmatched stability.
Its adaptive filtering and full 1–6 mA selectable test currents allow it to handle everything from sensitive equipment to long, high-capacitance cables with speed and precision.
Key features of the Megger S1-1068:
- RE>Act mode – improves accuracy by addressing reabsorption currents.
- Patented PI predictor (PIp) – reduces PI testing time.
- Measures up to 35 TΩ at 10 kV.
- ±5% accuracy to 2 TΩ at 10,000 V.
- Advanced diagnostics: PDC, Ramp, Dielectric Discharge.
- 8 mA noise rejection with adaptive filtering for EHV testing.
- Selectable test currents: 1 mA to 6 mA from battery or mains.
- Onboard memory with time/date stamping and data logging.
- USB and Bluetooth® LE for data transfer.
- Remote control via wired USB.
- Safety rated CAT IV 600 V to 3000 m altitude.
- Rugged dual-case design with large colour display.
Specifications:
| Feature | Details |
| Max Test Voltage | 10 kV |
| Insulation Resistance Range | up to 35 TΩ |
| Accuracy | ±5% to 2 TΩ at 10,000 V |
| Noise Rejection | up to 8 mA |
| Test Currents | 1–6 mA selectable |
| Safety Rating | CAT IV 600 V, 3000 m altitude |
| Connectivity | USB and Bluetooth® LE |
| Remote Control | Yes, via USB cable |
| Memory | Time/date stamped data logging |
| Display | Large, backlit colour display |
| Design | Dual case for environmental and impact resistance |
Built for your environment
The S1-1068 thrives in high-noise, high-voltage environments, thanks to its 8 mA noise rejection and adaptive filtering.
Its rugged dual-case design protects against harsh weather, dust, and impacts, while the clear, bright display remains readable in any light conditions — ideal for substation, field, and plant use.
Applications:
- High-voltage cable testing and commissioning.
- Transformer, generator, and motor insulation diagnostics.
- EHV substation maintenance.
- OEM production testing and repair facilities requiring remote operation.
What comes with the Megger S1-1068?
- S1-1068 insulation resistance tester
- Li-ion rechargeable battery (pre-installed)
- Mains power lead
- Test leads rated for 10 kV
- User guide and quick-start reference
- Carry-all holdall with removable lid pouch
❓ Frequently Asked Questions (FAQ)
Q1: How is the S1-1068 different from the S1-568?
A. The S1-1068 offers higher voltage capability (10 kV vs 5 kV), allowing testing of higher-rated equipment while retaining all Expert range features.
Q2: Can it be used for remote testing?
A. Yes – it supports full USB remote control for safe and convenient operation.
Q3: Is it suitable for EHV applications?
A. Yes – with adaptive filtering and 8 mA noise rejection, it performs accurately in environments up to 1000 kV.
Q4: Does it store and log results?
A. Yes – it has onboard time/date stamped memory and data logging.
Category Comparison:
The S1-1068 is a mid-range Expert model, offering all the features of the S1-568 but with higher test voltage capability for broader asset coverage.
Compared to Advanced range models (MIT525, MIT1025, MIT1525), it adds:
- 8 mA noise immunity with adaptive filtering.
- Remote control capability.
- Greater stability in extreme EHV environments.
- Full test current selection from 1–6 mA from battery or mains.
The S1-1568 builds on this with 15 kV maximum output for testing the largest and highest-rated insulation systems.
Ready for high-performance diagnostics?
Don’t leave faults to chance—get your Megger S1-1068/2 today!
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