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Megger S1-1568/2 Expert 15kV Insulation Resistance Tester

Megger
SKU: MEGGS115682
  • Has the highest voltage testing capability of up to 15kV
  • Measures capacitance range of up to 50\µF with \±10% accuracy
  • Features a safety rating of CAT IV 1000V up to 4000m altitude
More Info
Typically ships in 5-7 working days

Megger S1-1568/2 Expert 15kV Insulation Resistance Tester

The Megger S1-1568/2 Expert 15kV Insulation Resistance Tester is designed to be used by utility engineers, industrial maintenance teams, and electrical contractors, providing precise resistance measurements up to 15kV which is essential for assessing the integrity of cables, transformers, switchgear, motors, and other critical assets in power generation and transmission systems.

The S1-1568/2 supports a wide range of insulation diagnostics such as Polarisation Index (PI), Dielectric Absorption Ratio (DAR), Step Voltage (SV), Ramp Test, Dielectric Discharge (DD), and Polarisation Dependent Current. It also includes Megger's proprietary PI Predictor (Plp), which calculates PI values early in the test cycle to streamline workflows and reduce downtime. The RE>Act function intelligently compensates for reabsorption currents, resulting in accurate readings even in complex insulation systems.

With selectable test voltages from 250V to 15kV and a resistance measurement range that extends up to 35TΩ, the S1-1568/2 offers unmatched versatility and precision. It excels in electrically noisy environments thanks to its industry-leading noise rejection, which can operate effectively with interference levels of up to 8mA, while adaptive filtering and high-voltage suppression deliver reliable performance in substations, transmission yards, and industrial plants.

Remote operation is made possible via the USB which improves safety and convenience and allows technicians to conduct tests from a secure distance. The S1-1568/2 supports real-time data streaming and logging, with results easily exported via USB or Bluetooth® to Megger’s optional CertSuite Asset or PowerDB software for comprehensive asset management and reporting.

The S1-1568/2 features a dual-layer case with a shock-resistant outer shell and fire-retardant inner casing, perfect for rugged field use. It is rated CAT IV 1000V at altitudes of up to 4000 metres with an IP65 rating (when the lid is closed) offering protection against dust and water ingress. Plus, it also operates reliably in extreme temperatures from -20°C to +50°C, making it suitable for both indoor and outdoor applications.

The S1-1568/2 delivers resistance accuracy of ±5% up to 3TΩ and ±20% up to 20TΩ as and measures current from 0.01mA to 6mA as well as capacitance from 10nF to 50µF with ±10% accuracy. Powered by a rechargeable battery or AC mains, the S1-1568/2 features a fast-charge capability which provides one hour of operation after just 30 minutes of charging, and supports up to 4.5 hours of continuous testing at 15kV with a 100MΩ load.

Comparing the Megger Essential, Advanced & Expert Ranges

Feature Essential Range
MIT1015
MIT515/2		 Advanced Range
MIT525/2
MIT1025/2
MIT1525/2		 Expert Range
S1-568/2
S1-1068/2
S1-1568/2
High Guard Termial Performance ✔ ✔ ✔
IR ✔ ✔ ✔
IR(t) ✔ ✔ ✔
PI Polirasation Index ✔ ✔ ✔
PI Predictor ✔ ✔ ✔
DAR Dielectric Absorption Ratio ✔ ✔ ✔
DD Dielectric Discharge   ✔ ✔
Ramp Test   ✔ ✔
RE>Act mode ✔ ✔ ✔
PDC test   ✔ ✔
Max. voltage available 5kV or 10kV 5kV, 10kV or 15kV 5kV, 10kV or 15kV
Default maximum current 3mA 3mA 6mA
User selectable max. current values n/a 1mA, 3mA, 6mA (6mA only from main supply) 1mA, 2mA, 3mA, 4mA, 5mA, 6mA (6mA from internal battery and mains supply
Max. noise current with measurement withing accuracy spec.  3mA (LV and MV <45kV)  6mA (HV <230kV)  8mA (EHV <1000kV)
Adaptive filter      ✔
Negative current handling  ✔ ✔ ✔
Averaging filter      ✔
CAT IV 1000V   ✔ ✔
CAT IV 600V ✔ ✔ ✔
Hazardous peak voltage detection during IR measurement   ✔ ✔
On-board - time stamped   ✔ ✔
Temperature value stored   ✔ ✔
Humidity value stored     ✔
Test results transfer via wired USB   ✔ ✔
Test result transfer via wireless Bluetooth LE   ✔ ✔
Test result live streaming via wired USB   ✔ ✔
Test result live streaming via wireless Bluetooth LE   ✔ ✔
Remote control via wired USB     ✔
New custom colour display ✔ ✔ ✔
Carry all holdall ✔ ✔ ✔
Deeper lid pouch ✔ ✔ ✔
CertSuite Asset Lite compatible   ✔ ✔
CerSuite Assert compatible   ✔ ✔
Power DB Lite supplied free   ✔ ✔
Power DB Advance or Pro support   ✔ ✔

part number: 1016-118

Key Features

  • Test voltage range from 250V to 15,000V
  • Resistance range from 10kΩ to 35TΩ
  • Capacitance range from 10nF to 50µF
  • ±5% accuracy up to 3TΩ at 15kV
  • RE>Act mode for reabsorption current analysis
  • PI Predictor (Plp) for faster PI testing
  • PDC, SV, DD, DAR, Ramp test capabilities
  • Remote control via USB
  • Dual battery system for extended operation
  • CAT IV 1000V safety rating up to 4000m altitude
  • IP65 rated (lid closed)
  • Dual-case design
  • CertSuite Asset Lite compatible

What's In The Box?

  • 1 \× 3 m lead set with extra-large insulated clips (rated for 15 kV use)
  • Screened USB cable with filters
  • Remote control indicator beacon
  • Power lead
  • Quick start guide
  • CertSuite Asset Lite software access
Specification

For detailed specifications on the Megger S1-1568/2 Expert 15kV Insulation Resistance Tester, please click on the brochure below.

Label Type Size Download
pdf Megger Expert Range Preview pdf 3 MB Download
  1. Megger 3m 10kV Shielded HV Insulation Test Leads (6220-834)
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  2. Megger 15kV HV Test Lead Set (1008-023)
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  3. Megger 5m 15kV HV Insulation Test Leads (1005-259)
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  4. Megger 10m 15kV HV Insulation Test Leads (1005-267)
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    £318.00 (inc VAT)
  5. Megger 15m 15kV HV Insulation Test Leads (1005-261)
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  6. Megger 3m 6kV HV Insulation Test Leads (1005-262)
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    £155.00 (ex VAT)
    £186.00 (inc VAT)
  7. Megger 10m 6kV HV Insulation Test Leads (1005-263)
    Megger 10m 6kV HV Insulation Test Leads (1005-263) SKU: MEGG1005263
    £293.00 (ex VAT)
    £351.60 (inc VAT)
  8. Megger 1kV Control Circuit Test Lead Set (1005-264)
    Megger 1kV Control Circuit Test Lead Set (1005-264) SKU: MEGG1005264
    £109.00 (ex VAT)
    £130.80 (inc VAT)
  9. Megger 1kV Fused Insulation Test Lead Set (1005-265)
    Megger 1kV Fused Insulation Test Lead Set (1005-265) SKU: MEGG1005265
    £113.00 (ex VAT)
    £135.60 (inc VAT)
  10. Megger Screened 3m 15kV HV Insulation Test Leads (1005-266)
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    £546.00 (inc VAT)
  11. Megger Screened 10m 15kV HV Insulation Test Leads (1005-267)
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    £545.00 (ex VAT)
    £654.00 (inc VAT)
  12. Megger Screened 15m 15kV HV Insulation Test Leads (1005-268)
    Megger Screened 15m 15kV HV Insulation Test Leads (1005-268) SKU: MEGG1005268
    £580.00 (ex VAT)
    £696.00 (inc VAT)
  13. Megger Screened 20m 15kV HV Insulation Test Leads (1005-269)
    Megger Screened 20m 15kV HV Insulation Test Leads (1005-269) SKU: MEGG1005269
    £620.00 (ex VAT)
    £744.00 (inc VAT)