Description
Kikusui TOS5403 6kV DC Hipot and 10GΩ Insulation Resistance Tester
The Kikusui TOS5403 is a DC-only electrical safety tester combining DC hipot and insulation resistance testing. It provides DC withstand voltage testing up to 6kV at 10mA, together with insulation resistance test voltages from 25V to 1000V and measurements up to 10GΩ.
Designed particularly for batteries, photovoltaic systems and other DC applications, the TOS5403 avoids the unnecessary cost and complexity of an AC withstand voltage function where only DC testing is required. Its compact design and 7-inch touchscreen make it well suited to laboratories, quality assurance departments and production inspection systems.
The adjustable discharge detection function can identify momentary discharges and high-frequency components associated with arc and corona activity. Forced discharge following DC hipot or insulation resistance testing helps remove residual charge from capacitive devices under test, while LAN, USB and RS-232C interfaces support automated test integration.
- DC hipot testing up to 6kV / 10mA with 50W maximum rated output
- Dedicated DC-only design for batteries, PV systems and DC equipment
- Insulation resistance test voltage adjustable from 25V to 1000V DC
- Insulation resistance measurement up to 10GΩ
- 7-inch touchscreen display for clear test configuration and monitoring
- Adjustable discharge detection for momentary, arc and corona discharges
- Forced discharge function after DC hipot and insulation resistance tests
- Rise time, fall time and judgement delay control
- Automatic two-step testing with up to 61 program memories
- Upper and lower pass/fail judgement settings
- LAN, USB 2.0 and RS-232C interfaces supplied as standard
- Universal 100V to 240V AC input
- Compact and lightweight design compared with the AC-capable models
- START Long function helps prevent accidental test initiation
- Battery and battery module safety testing
- Photovoltaic panel and solar system testing
- EV and automotive battery component evaluation
- DC dielectric withstand testing
- Insulation resistance testing of DC equipment
- Power electronics and energy storage testing
- Research and development laboratories
- Quality assurance and production inspection
- Automated DC electrical safety test systems
Product Images
Intuitive Operation
High Stability
Multiple Interface Options





































































































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Eng TOS5400 Datasheet













