SMA SB 240 - Manual (Page 35)

4. Using the insulation stripping tool, strip the
insulation of the three individual conductors by
10 mm each (tolerance: ± 1 mm). Take care not
to damage the individual stranded wires.
☑ The cable is assembled.
5. Push one bootlace ferrule onto each stripped insulated conductor up to the stop.
6. Crimp the bootlace ferrule tightly using a crimping tool.
7. Ensure that a crimping length of max. 2.4 mm is maintained.
Premounting the AC Field Plug
1. Slide the screw connection over the cable with the bootlace ferrules. Ensure that the thread of
the screw connection is facing the bootlace ferrule.
2. Use your fingers to push the seal as far as possible into the plug enclosure.
3. Lead the plug enclosure with the seal over the cable. The thread must be facing the thread of
the screw connection.
Mounting the Insulator
1. Push the stranded wires with the bootlace ferrules up to the stop in the premounted pin
connectors inside the insulator. The line conductor must be plugged into pin connector L, the
neutral conductor into pin connector N and the grounding conductor into the pin connector
with the symbol
.
☑ The bootlace ferrules are no longer visible.
2. Tighten the three screws in the insulator using a screwdriver (torque: 0.8 Nm).
3. Make sure that the individual conductors are positioned securely in the correct pin connectors
of the insulator.
Completing Mounting of the AC Field Plug
1. Push the plug enclosure onto the insulator.
☑ Both parts snap together. The catch mechanism on the insulator and on the plug
enclosure must be correctly aligned.
2. Tighten the screw connection of the plug enclosure using a torque wrench and then tighten it
with two different torques:
• First tighten the screw connection with a torque of 3.3 Nm. Set the value 3.0 Nm at the
scale of the torque wrench specified by SMA Solar Technology AG.
• Then tighten the screw connection with a torque of 4.4 Nm. Set the value 4.0 Nm at the
scale of the torque wrench specified by SMA Solar Technology AG.
6 Electrical Connection SMA Solar Technology AG
Installation Manual 35 SMA-SB240-IA-en-12