8
(1) Ground (class D) the FG terminal on the MDU mounting plate.
(2) Securely insert the connection cable coming out from the MDU Breaker main unit into the MDU connector (until the lock clicks into place).
(Figure 4)
(3) Hook the small tab on the back of the MDU onto the fitting on the MDU mounting plate. (Figure 5)
(4) Remove the MDU terminal cover, and then screw it to the MDU mounting plate. (Figure 6)
Use the included “M3
×
25” fixing screw for MDU.
Arrange the connection cable through the guide area. (Figure 7)
3.1.3 Mounting of MDU to MDU Breaker main unit
<Connecting the connector>
(Figure 4)
Click!
View of MDU from the back
Insert
straight
[1] Insert the connector into the MDU connector with the lock area
of the connector to the top.
MDU connector
Connector Connection cable
[2] Insert until you hear it
click into place.
Fixing screw for MDU
M3
×
25
(tightening torque:
0.6 to 0.8 N·m)
(Figure 6)
(Figure 5)
Termimal cover
<Mounting/removing the terminal cover>
While pushing the arrow area, use the
area A as a fulcrum and pull it upward.
* When removing the MDU from the MDU Breaker main unit, do it in a reverse procedure to the mounting procedure.
The terminal cover is removable, so use caution when handling it. (Figure 8)
(Figure 7)
(Figure 8)
Area A
Arrow area
Terminal cover
Connection cable
Guide area
●
Take note of the connector’s orientation and insert it straight.
●
Insert until you feel the lock click into place.
Caution
Make sure that the MDU connection cable is not caught by the plate.
Caution
Do not forcefully pull the connection cable. Doing so may result in a disconnection of the cable.
Caution
MDU
connector
Summary of Contents for NF250-HEV
Page 62: ...MEMO ...
Page 63: ......
Page 64: ...Nov 2019 LN107A330H02 IB63E30 A 1911 MEE MDU Breakers ...