Test Terminal 13 way connected
PRODUCT APPLICATION & DESCRIPTION
Test Terminal Blocks offer convenience in-situ testing/calibration of electromechanical polyphase integrated meters and protective relays etc,without disturbing the existing load circuit.Housed in a robust phenolic moulding with integrally moudled barriers,it offers ample protection against flash-over between terminals.The voltage terminals,grouped separately have protective phenolic shroud.The three groups of current terminals,each consisting of three terminals have interconnecting links to inject current from portable test set or to short circuit current transformers secondaries.Detachable,punch blanking strip is provided on both ends of the terminals.During normal operation,these blanking strips are positioned to form part of the cover.It is reversed during testing,to facilitate entry of cables and positioning of top cover.These TTBs are available for front or back connection.
Base,cover and shroud are phenolic moulded.Blanking strip is punched SRBP sheet.All terminals,studs,links,nuts are brass,duly nickel plated.The terminals have holes of 5.50 mm diameter for cable entry and 4.5 mm screw for clamping.Studs are provided at the rear,in back connected TTBs are 6 mm dia. With suitable nuts,washers and spring washers.Sealing hole provided on cover securing knobs and studs prevent unauthorized access.