



Megger S1-1068/2 Expert 10 kV insulation resistance testers
The S1-1568/2 is a top-tier insulation resistance tester built for high-voltage environments, providing selectable DC test voltages up to 15 kV and measurement ranges into the tens of teraohms — ideal for diagnosing insulation on critical assets such as cables, transformers and switchgear.
Description
As part of Megger’s “Expert” series, the S1-1568/2 offers advanced insulation testing capabilities in a rugged, field-ready package. Users can select test voltages starting from typical lower values (e.g., 1 kV, 2.5 kV, 5 kV, 10 kV) up to the full 15 kV range, enabling flexibility across different insulation systems. It supports an insulation resistance measurement range up to approximately 35 TΩ at 15 kV, facilitating detection of very high-quality insulation. The instrument features advanced test modes including Insulation Resistance (IR), timed IR, Polarisation Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), Step Voltage (SV) and Ramp-Voltage tests. It further incorporates high noise-immunity (8 mA) and adaptive filtering to ensure stable, accurate results in electrically noisy substation environments. Remote control via USB or Bluetooth is supported, enabling testing from safe distances. The device is built with a dual-case rugged construction, rated for high safety levels (e.g., CAT IV 1000 V up to high altitudes) and includes both Li-ion battery and AC mains operation for flexible field deployment. Large back-lit display and user interface are optimized for clarity and usability under tough conditions. Overall, the S1-1568/2 is engineered for professional-level insulation diagnostics when accuracy, speed and durability are paramount.
Features
- Selectable DC test voltages up to 15 kV for comprehensive insulation system testing.
- Insulation resistance measurement up to about 35 teraohms at full test voltage.
- Wide diagnostic test suite: IR, timed IR, PI, DAR, DD, Step-Voltage and Ramp tests.
- High noise immunity (8 mA) plus adaptive filter to ensure stability in noisy substation conditions.
- Remote control capability via USB or Bluetooth for safe operation during high-voltage testing.
- Guard terminal to remove surface leakage paths and enhance measurement accuracy.
- Rugged dual-case design, high CAT-rating, and ability to operate from mains or battery.
- Large back-lit display and intuitive controls for ease of use in the field.
- Fast charge battery operation; built for heavy-duty field use.
Includes
- 1 × 3 m lead set with medium, insulated clips (rated for 5 kV use)
- 1 × 3 m lead set with large, insulated clips (rated for 10 kV use)
- Screened USB cable with filters
- Remote control indicator beacon
- Power lead
- Quick start guide
- CertSuite Asset Lite software access










