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6 Electrical ConnectionSMA Solar Technology AG <br />Installation Manual SBxx-1SP-US-41-IA-xx-12 41 <br />Requirements: <br />☐ The technical requirements of the multifunction relay must be met (see Section 10 "Technical <br />Data", page 65). <br />☐ All electrical installations must be carried out in accordance with the local standards and the <br />National Electrical Code ® ANSI/NFPA 70 or the Canadian Electrical Code® CSA C22.1. <br />Requirements on･the conductors: <br />• Conductor cross-section: 0.2 mm² to 1.5 mm² (24 AWG to 16 AWG) <br />• The conductor type and wiring method must be appropriate for the application and location. <br />Procedure: <br />1. DANGER <br />Danger to life due to high voltages <br />• Ensure that the inverter is disconnected from all voltage sources (see Section 8, <br />page 61). <br />2. Remove the sealing plug from the enclosure opening on the multifunction relay. <br />3. Insert the conduit fitting into the opening and tighten from the inside using the counter nut. <br />4. Attach the conduit to the conduit fitting. <br />5. Guide the conductors from the conduit into the inverter. <br />6. Strip off the conductor insulation by max. 9 mm (0.35 in). <br />7. Connect the conductors to the 3-pole terminal block <br />according to the circuit diagram, depending on the <br />operating mode (see Section 6.4.3 , page 36). <br />Ensure that the conductors are plugged completely <br />into the terminal points (round openings) up to their <br />insulation. <br />1 2 3 <br />8. Stick the terminal block into the MFR slot on the <br />communication assembly in the inverter. <br />D-IN SPSA B <br />FCC ID: SVF-KP20 <br />IC: 9440A-KP20 <br />Max. 30V DC <br />DISPLAY <br />BAT MFR USB MFR <br />Max. 3 <br />USB <br />BAT <br />9. Ensure that the terminal block is securely in place. <br />10. Ensure that all conductors are correctly connected. <br />11. 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 />EN <br />G <br />L <br />I <br />S <br />H <br />534 S Sycamore St <br />- 10110979707/01/22