Technical Features

Type TTB 4W PK2 test blocks are 4-pole blocks, provided with moulded bakelite base and covers that have arrangement of internal plug contacts, which maket positive connection when the cover is place. The contacts blocks line pressure type and provide positive contact with the minimum contact resistance. For all current circuits, auxiliary contacts are automatically short circuit there current transformer when the cover is removed.

Routine testing can accomplished simply by removing covers and substituting the properly connected test plug. Thereafter, normal connections are restored by replacing the cover.

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