ZXHL-300A LCD Display Switch Circuit Breaker DC 100A 200A 300A Earth Resistance Tester

Jul 24, 2025
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Digital Display Switch Circuit Breaker Contact Resistance Tester Product introduction ZXHL-300A Contact Resistance Tester is designed for measuring contact resistance of Switching Control Equipment, using High-frequency switching power supply technology and digital circuit technology. It is high precision and good stability and can meet most power systems’ requirements in high-voltage switches maintenance and high-voltage switches factory contact resistance measurement.
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