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Installation
Step by Step Connection
• This equipment must only be installed and serviced by qualified electrical personnel.
• Place the iSaver DPFC rigidly in a secure, dry, suitable environment as close to the distribution panel as possible
with sufficient space to connect the terminal section.
• Open the front and back panel door and visually inspect to ensure that nothing has become loose during
transportation and handling. If there is any evidence of damage or loose wires, repair or replace prior to
proceeding further.
• Select side or top entry terminal entry gland plates based on model and site requirement and disassemble the
selected gland plate by removing fasteners.
• Drill appropriate size hole for Cable entry and use suitable sized rubber Gourmet to ensure adequate safety of
cable insulation as well as to avoid entry of unwanted pests.
• All cables to the iSaver-DPFC should be routed through the rubber gourmet and the gland reinstalled.
• Turn down the Power to the distribution board and ensure it is de-energized and safe to connect.
• Ensure the main breaker of distribution board and iSaver breakers are in ‘OFF’ position.
• Select approved CT size based on the capacity of the Main Power supply breaker of the site. (Ex.: If the
breaker size is 600A, the CT to be used should also be rated as 600/5 Amps, 600V AC). Sometimes, the
physical installation clearance and bus bar size etc. will determine the internal diameter of the CT coil to be
used.
The CT’s have to be mounted on the main incomer bus bar/cable of L1, L2 and L3 phases with the correct direction of
the CT (check the current flow direction marked (P1 and P2) on the respective CT ,P1 is the current entry ) as shown
in the schematic. This is critical to effectively operate the iSaver.
It is critical that the External CT’s are positioned wherein the total current (typically just after the main incomer
breaker) to enable the measurement of the total current flowing through the main breaker (see schematic)
The CT terminals (usually marked S1 & S2 and the direction of CT current flow is marked P1 & P2) should be
connected to the CT terminal block in the iSaver unit in exactly the same sequence. Check the schematic for further
clarity. (Example: The R phase CT to be connected to the R phase in the terminal block at the S1 & S2 connection
point).
Legend:
A
. Power source cable and power flow
B
. Mounting orientation indicator arrow
C
. CT cables to iSaver CT connection
