Installation Testers/Adapters
Using five glow lamps, the rotary field tester, Testboy TV 410N, indicates the presence of all three phases and, through their sequence, determines the correct order of the phases. The housing is made from impact-resistant, unbreakable ABS plastic, the fully insulated 4 mm sockets and the associated comprehensive and adaptable connection cable set provide safe testing and rapid determination of the phasing in a three-phase system.