User and installation manual

6 Electrical Connection

SMA Solar Technology AG

Installation Manual SBSxx-US-10-IA-xx-12 43

Connect the outlet for secure power supply operation

Requirements on･the conductors:

☐ The conductors with regards to its ampacity, rated temperatures, operating conditions and its

power loss must be made in accordance with the local standards and the National Electrical

Code

ANSI/NFPA 70 or the Canadian Electrical Code

CSA C22.1.

☐ Conductor type: copper wire

☐ The conductors must be made of solid wire, stranded wire or fine stranded wire. When using

fine stranded wire, bootlace ferrules must be used.

☐ Conductor cross-section: 2.5mm² to 4mm² (14AWG to 12AWG)

☐ Maximum length of conductors: 10m (33ft)

Procedure:

DANGER

Danger to life due to high voltages

• Ensure that the inverter is disconnected from all voltage sources (see Section8,

page66).

2. Remove the sealing plug from the enclosure opening for connecting the outlet for secure

power supply operation.

3. Insert the conduit fitting into the opening and tighten from the inside using the counter nut.

4. Attach the conduit to the conduit fitting.

5. Guide the conductors into the inverter.

6. Connect the equipment grounding conductor of the outlet for secure power supply operation

to an equipment grounding terminal:

• Strip the insulation of the equipment grounding conductor by 18mm (0.71in).

• Insert the screw through the spring washer, the

clamping bracket and the washer.

• Guide the equipment grounding conductor between the washer and clamping bracket

and tighten the screw (TX 25) (torque: 6Nm ± 0.3Nm (53.10in-lb ± 2.65in-lb)).

ENGLISH