ZS1b

The test terminal board ZS1b (for four-wire wiring) is designed for electric equipment, where replacement or inspection of measuring gauges during the operation is required (when disconnecting or connecting electricity meters in secondary circuits of measuring current and voltage transformers) and where it is necessary to meet the condition of non-breaking the secondary circuits of measuring current transformers.

To the test terminal board relate utility designs no. 35005 and 6557.

The test terminal board ZS1b is designed as follows: the current terminals P are divided in two halves and are connected in terms of conductivity by tightening the screws S. The conductive connection of adjacent current terminals of the same polarity is realized with a jumper M.