CIBRE-L3B, 3-Contact Circuit Breaker Analyser is designed using advanced engineering technology to test contact timings of circuit-breakers. CIBRE-L3B has fast, easy and accurate measurement features using its user-friendly software. CIBRE-L3B is a battery-powered device (optional feature), which allows users to perform tests even without power supply during field tests. https://www.hightest.co.uk/product-cat/circuit-breaker-analyser/
