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4M300 Test Block System
Test links are an important accessory for protection, metering & control panels. They enable test technicians to quickly & safely isolate protection relays so that test signals may be injected & system performance verified.
The 4M300 Test Block has been designed as a general-purpose isolation & test signal injection point with 14 independent circuits.
The 4M320 Test Plug employs colour coded 'finger safe' 4mm diameter sockets are employed so that either shrouded or standard 4mm banana plugs may be used to short CT inputs & connect test equipment. Equipment under test need only be removed for servicing if problems are detected.