Mitsubishi Electric Melsec Q Series User Manual page 84

7 Setting and procedure for operation
■ How to attach EMU-CT400/CT600-A
1) Press the locking claw of the moving core, please open the moving core by removing the engagement (Figure
1). At this time, the hinge cover opens automatically. Before inserting the cable, check the symbols K and L to
fit the current sensor in the correct direction. (The direction from the power supply side to the load side is
indicated with →.) (Figure 3)
2) After checking that the core parting faces are free from dirt, close the moving core. Push down the moving core
until the stoppers are securely locked. (Locking claw of the moving core is applied to the stopper, you hear
click.) After the stopper is securely locked, close the hinge cover. (Figure 2)
3) Pass the tying bands into the current sensor locking holes to secure the sensor with the cable. (Figure 3)
(Figure 1)
Stopper
Hinge cover
Primary cable
Supplementary -----------------------------------------------------------------------
 Make sure that before connecting the cable, the orientation of the current sensor is correct for
attachment. K to L is the correct direction. K: power source side, L: load side.

Do not bend the moving core in a direction other than the operation direction (shown in Fig. 1).
The current sensor may be damaged.
 Refer to the table below for appropriate size of electric wires.
Usable wires
size (reference)
Size of electric wires conforms to what is described in the catalog of general PVC insulated
wires. Thickness of external PVC insulation is different for different wire. Check with the external
dimension diagram of this product and make sure the wire can go through the given space.
(Figure 2)
Moving core
parting face
Moving core
locking claw
Protective cover
EMU-CT400-A
IV cable 500 mm or less
2
CV cable 400 mm 2 or less
(LINE side)
Direction
of current
Locking hole
(3 x 2)
EMU-CT600-A
500 mm or less
2
400 mm 2 or less
7 - 12
(Figure 3)
*Buy the tying bands.
Tying band
Tying band
Locking hole
(3 x 2)
Recommended tying band: T181 (Tyton).
Tying band should be arranged by customer.
QE81WH
(LOAD side)
Primary cable