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6 Electrical ConnectionSMA Solar Technology AG <br />Installation Manual SBxx-1SP-US-41-IA-xx-12 43 <br />Connect the outlet for secure power supply operation <br />Requirements for the conductors: <br />☐ The conductors with regards to its ampacity, rated temperatures, operating conditions and its <br />power loss must be made in accordance with the local standards and the National Electrical <br />Code ® ANSI/NFPA 70 or the Canadian Electrical Code® CSA C22.1. <br />☐ Conductor type: copper wire <br />☐ The conductors must be made of solid wire, stranded wire or fine stranded wire. When using <br />fine stranded wire, bootlace ferrules must be used. <br />☐ Conductor cross-section: 2.5 mm² to 4 mm² (14 AWG to 12 AWG) <br />☐ Maximum length of conductors: 10 m (33 ft) <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 for connecting the outlet for secure <br />power supply operation. <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 into the inverter. <br />6. Connect the equipment grounding conductor of the outlet for secure power supply operation <br />to an equipment grounding terminal: <br />• Strip the insulation of the equipment grounding conductor by 18 mm (0.71 in). <br />• Insert the screw through the conical spring <br />washer, the clamping bracket and the washer. <br />• Guide the equipment grounding conductor between the washer and clamping bracket <br />and tighten the screw (TX 25) (torque: 6 Nm ± 0.3 Nm (53.10 in-lb ± 2.65 in-lb)). <br />EN <br />G <br />L <br />I <br />S <br />H <br />534 S Sycamore St <br />- 10110979707/01/22