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6 Electrical Connection SMA Solar Technology AG <br />Installation ManualSBxx-1SP-US-41-IA-xx-12 46 <br />7. Stick the terminal block into the SPS slot on the <br />communication assembly in the inverter. <br />D-IN SPSA B <br />FCC ID: SVF-KP20 <br />IC: 9440A-KP20 <br />8. Ensure that the terminal block is securely in place. <br />9. Ensure that all conductors are correctly connected. <br />10. Ensure that the conductors sit securely in the terminal points. Tip: To release the conductors <br />from the terminal block, open the terminal points using a suitable tool. <br />11. Install switch in desired position (e.g. next to the inverter or as switch/outlet combination <br />optionally at short distance from the inverter (to max. 10 m (393.7 in))). <br />12. Connect the other end of the cable directly to the switch. <br />6.6 DC Connection <br />6.6.1 Requirements for the DC Connection <br />Connection options: <br />One string each can be connected to each DC input of the inverter during normal operation. The <br />DC inputs A and B can however be operated in parallel, and thus up to three strings can be <br />connected to inverters with two DC inputs and up to four strings to inverters with three DC inputs. <br />The following device types have two MPP trackers and therefore two DC inputs (A and B): <br />• SB3.0-1SP-US-41 <br />• SB3.8-1SP-US-41 <br />The following device types have three MPP trackers and therefore three DC inputs (A, B, and C): <br />• SB5.0-1SP-US-41 <br />• SB6.0-1SP-US-41 <br />• SB7.0-1SP-US-41 <br />• SB7.7-1SP-US-41 <br />EN <br />G <br />L <br />I <br />S <br />H <br />534 S Sycamore St <br />- 10110979707/01/22