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ABB UniGear Digital - ESSAILEC RJ45 Test Block

ABB UniGear Digital
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20 1VLG5 00007 E
ESSAILERJ45 test block
The test block is used for efficient testing of protection and control relay with sensor inputs
during regular maintenance. The test block is flush mounting type on the low voltage com-
partment door and its vertical layout is recommended. The testing of protection and control
relay’s sensor inputs is possible without opening the low voltage compartment door. One
test block is intended for one phase and it consists of a socket, a lid and a plug.
Figure 19: ESSAILEC
®
RJ45 test block
Figure 20: Low Voltage Compartment door with ESSAILEC
®
RJ45 test blocks
The socket is covered during Normal operation by the lid. For testing, the lid is removed and
replaced by the test plug.
Figure 21: The testing (only one phase is shown)
ESSAILETrip or Polarity range test block
A test block allows the testing without circuit breaker tripping.

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