TX3706-UM-EN-02 19
TX3706 • User Manual
4.2.2 Pilot circuit interlocking
Automatic isolation of the power source during separation using one of the connector
contacts for interlocking a pilot switching circuit.
•
Fit a lagging pilot pin TX 3700.032.15 or TX 3700.032.25
Engage
Ex d Protection
Break
Ex d Protection
Separate
- - -
IP65
Ex d + IP66
Fit the rubber ingress protection cap when
separated.
Fit an Ex protection cap if the system
power is to be reinstated.
Checkpoint
•
The pilot relay will isolate the power source slightly in advance of the main contacts
during separation
•
Breaking of the pilot contract will take place under Ex d protection
•
The pilot circuit must be de-energised along with the power source.
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