Megger S1-568/2 | 5 kV Insulation Tester

The Megger S1-568/2 is an expert-grade 5 kV insulation resistance tester engineered for exceptional performance in the most demanding electrical environments. Designed for engineers and technicians in utilities, industrial automation, and manufacturing, this instrument provides reliable, accurate, and safe measurements where other testers fail. Its robust construction and advanced features ensure minimal downtime and maximum operational efficiency.

A standout feature of the S1-568/2-AU is its exceptional noise immunity, capable of handling up to 8 mA of noise current. This makes it the ideal choice for testing in extreme high-voltage environments, such as 765 kV switchyards, where electrical interference can compromise measurement accuracy. The innovative RE>Act™ test mode further enhances reliability by measuring and indicating the impact of re-absorption current, preventing false passes on failing insulation and improving user safety during discharge monitoring.

The S1-568/2-AU combines all the diagnostic capabilities of the Essential and Advanced ranges, including PI, DAR, DD, PDC, and ramp tests. It offers a maximum test voltage of 5 kV and measures insulation resistance up to 30 TΩ. For enhanced safety, the instrument is rated to CAT IV 1000 V and features a unique dual-case design with a fire-retardant inner casing and a tough, drop-resistant outer shell.

Data management is streamlined with on-board memory and seamless transfer via USB. The S1-568/2-AU is fully compatible with the free CertSuite Asset Lite software, allowing you to transfer time-stamped results directly to a mobile device or laptop for efficient asset management and reporting. With remote operation capabilities via USB, a rapid-charge Li-ion battery, and the ability to operate from an AC mains supply, the S1-568/2-AU delivers the power, precision, and safety required for critical insulation testing.

Key Features

• Exceptional Noise Immunity: Handles up to 8 mA of noise current, ensuring accurate measurements in extreme EHV environments like 765 kV switchyards.
• RE>Act™ Test Mode: Enhances measurement reliability and safety by detecting and quantifying re-absorption currents.
• 5 kV Test Voltage: Provides a maximum test voltage of 5 kV, suitable for a wide range of high-voltage industrial applications.
• CAT IV 1000 V Safety Rating: Delivers superior user protection, compliant with the highest safety standards for high-altitude and high-voltage testing.
• Comprehensive Diagnostic Tests: Includes IR, PI, DAR, DD, SV, PDC, and Ramp test modes for in-depth insulation analysis.
• Remote Operation & Data Management: Features remote control via USB and compatibility with CertSuite Asset Lite for easy data logging and transfer.
• Dual Power Source: Operates on a rapid-charge Li-ion battery for portability or from an AC mains supply for continuous testing.