SMA SB 240 - Manual (Page 33)

8. If necessary, use AC field plugs to bridge greater distances (see Section 6.4 "Assembling the
AC Field Plug", page 33).
9. If necessary, additionally ground the inverters (see Section 6.5 "Connecting Additional
Grounding", page 36).
10. Connect the free end of the AC cable of the first inverter to the Sunny Multigate (see
Section 6.6, page 36).
6.4 Assembling the AC Field Plug
You can use the AC field plugs included in the delivery for different purposes:
• Connecting the AC cable of the first inverter to the Sunny Multigate. However, this connection
can also be made using a junction box.
• Using two AC field plugs to bridge greater distances between two inverters. The AC cables
available at SMA Solar Technology AG for connecting the inverters have a limited length (see
Section 15 "Spare Parts and Accessories", page 72).
Overview
Figure 17: Elements of the AC field plug
Position Designation
A Insulator
B Enclosure
C Seal
D Screw connection
Additionally required material (not included in the scope of delivery):
☐ Three bootlace ferrules: 2.5 mm²
☐ Cable shears: 165 mm
☐ Stripping knife with straight knife blade: 8 mm to 28 mm
☐ Insulation stripping tool: up to 10 mm²
☐ Crimping tool for bootlace ferrules: up to 10 mm²
☐ Torque screwdriver: 0.3 Nm to 1.2 Nm
☐ Cross-head screwdriver Pozidriv – bit, 1.4" or BiTorsion, 1/25 mm
☐ Torque wrench, scale adjustable, 2 Nm to 20 Nm
☐ Crow-Ring wrench, AF 25
☐ Square insertion tool, outer square: 3/8", inner square: 9 mm x 12 mm
☐ Screwdriver: insulated, blade width: 4 mm, blade thickness 0.8 mm
6 Electrical Connection SMA Solar Technology AG
Installation Manual 33 SMA-SB240-IA-en-12