Ac Connection; Inserting The Ac Cables Into The Dc Disconnect - SMA SUNNY BOY 3000-US Installation Manual

SMA America, LLC

6.3 AC Connection

6.3.1 Inserting the AC Cables into the DC Disconnect

Additional required mounting material (not included in the scope of delivery):
☐ 1 rain-tight or water-tight sleeve (
☐ 1 rigid conduit (
Cable requirements:
☐ The AC cables must be designed for ambient temperatures exceeding +194°F (+90°C).
☐ The maximum cable length, which is dependent on the conductor cross-Section, must be
adhered to.
☐ Conductor material: Copper wire
☐ Conductor cross-Section: AWG 10 to 6 AWG (6 mm
☐ The AC cables must be designed according to the installation requirements applicable on site.
Requirement:
☐ The AC cables must be protected using a switch-disconnector or miniature circuit-breaker
(see National Electrical Code
permissible fuse protection of 30 A.
☐ All electrical installations must be carried out according to all electrical standards applicable on
site and the National Electrical Code
☐ Installations in Canada must be carried out in accordance with the applicable Canadian
standards.
1. Disconnect the AC miniature circuit-breaker and ensure that it cannot be reconnected.
2. Open the DC Disconnect (see Section 9.3).
3. Break out a suitable knockout on the underside of the DC Disconnect for inserting the AC cable.
4.
Damage to the DC Disconnect due to penetration of moisture
Electronic components in the inverter can be destroyed or damaged as a result of moisture
penetration.
• Only break out 1 knockout for the connection of the AC cable.
• Do not enlarge the enclosure opening.
5. Insert 1 rain-tight or water-tight sleeve (
DC Disconnect and tighten from the inside using a counter nut.
6. Install 1 rigid conduit (
7. Insert the AC cables of the power distribution grid into the interior of the DC Disconnect through
a rigid conduit.
Installation Manual
3
⁄ in. (19 mm)).
4
3
⁄ in. (19 mm)).
4
®
, ANSI/NFPA 70). For this purpose, observe the maximum
3
⁄ in. (19 mm)) in the enclosure opening.
4
2
to 16 mm
®
(NE, ANSI/NFPA 70).
3
⁄ in. (19 mm)) in the enclosure opening of the
4
6 Electrical Connection
2
)
SB30-40-US-IA-en-33 39