Ct Shorting Block Wiring Diagram
Unused ct inputs could possibly pickup electrical noise so it is a good practice to short out unused ct input terminals by connecting a wire jumper about 1 inch long between the white and black ct terminals.
Ct shorting block wiring diagram. Ei 30ct04dr 6 pole block part. Shorting the secondary with primary current present allows other connections to be removed if needed. We stock 4 6 8 point shorting blocks. This is usually not a concern if there is no line voltage connected to the corresponding voltage input terminal.
Ct shorting blocks are wired such that the negative leads of the current transformers are connected to the same node and tied to ground. An open ct secondary with primary current applied produces a hazardous voltage which. Captive hardware finger safe covers din rail mounted safer than traditional shorting blocks easier to install eig offers two options for ct shorting for meter installation. Wiring between the cts and the power monitor should include a shorting terminal block in the ct secondary circuit.
4 pole block part. Ct shorting blocks a critical part of current transformer protection. Ei 30ct06dr these shorting blocks are designed to be a superior. 4 pole and 6 pole ct shorting blocks features include.