The SPTU Smart Handheld Test Unit (Hereinafter referred to as handheld device) is a secondary injection handheld test unit. It can be widely used for testing and verification of power distribution cabinet circuit breaker before delivery in commercial and civil construction projects, as well as daily operation and maintenance testing after operation.
The SPTU Smart Handheld Test Unit is a secondary injection handheld test unit which can be widely used for testing and verification of circuit breaker before projects commission.
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