WSTECH APS Series - Table 20: Connection on DC Fuse Holder

Original Operating Instructions
APS Series – Outdoor Hybrid Inverter
Installation
APS-Series 120 Operating Instructions v320 EN
Page 108 of 213
Procedure:
1. Open doors in Sections +C2, +C5 (Figure 14).
2. Dismount the protective covers.
3. Check that all screws of the minus cooper rail and plus copper rail are
mechanically secured (Figure 89).
4. Check that all screws for mounting the DC fuse holders on the mounting plate
are mechanically secured.
5. Shear off cable entry grommets according to the cable diameter to be passed
later, so that a sealing is possible (cable diameter minus 25 %).
6. Adapt cable length.
7. Route and lay DC cables (+) through the cable entry grommets behind the
minus copper rail.
8. Route DC cables (-) through the cable entry grommets.
9. Fix the cable lugs at the fuse holders (Table 20).
10. Secure the DC cables at the mounting bar by means of cable clamps.
Table 20: Connection on DC fuse holder
Fuse holder
Cable lug
Torque
NH2 (1000 V
DC
)
M10
20 Nm
NH3 (1000 V
DC
)
M12
20 Nm
NH2XL (1500 V
DC
)
M10
32 Nm
NH3L (1500 V
DC
)
M12
32 Nm