Wiring Box Cover; Electrical Installation For Ac Wiring - Delta M42U Operation And Installation Manual

Grid-tie transformerless solar inverter
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3.2 Wiring box cover

For first time installing/re-installing WB cover, in order to guarantee proper
long-term operation of the inverter, procedures in Section 5.1 must be followed.

3.3 Electrical Installation for AC Wiring

- To avoid shock hazard during cabling, insure any live grid connections are removed
from the inverter.
- Installation and commissioning must be performed by a well-trained person
(e.g.a licensed electrician) in accordance with local, state, and National Electrical
Code ANSI / NFPA 70 requirements.
- Input and output circuits of this unit are isolated from the enclosure System
grounding must be done in accordance with the National Electrical Code (NEC).
- Compliance to the local electrical code is the installer's responsibility.
- Inverter warranty void if the DC input voltage exceeds 1000 Vdc.
CAUTION: INVERTER AND EQUIPMENT DAMAGE MAY OCCUR !
- Wire sizes chosen for the AC conductors must meet ampacity requirements of
NEC Section 310 or equivalent.
- Wiring method for the AC Installation must comply with the local electrical code.
- Failure to follow the instructions may result in damage to the inverter and AC
conductors.
- The M42/36/28U solar Inverters must be connected to a 3-phase 480 Vac utility
service. NEC 705.12(D)(1) requires that the inverter (every fixed appliance) must
be connected to a separate, dedicated circuit breaker (or other approved OCPD)
with no other outlets or devices connected to the same circuit (not shared by
any other appliance).
- In order not to damage the components in the inverter, ensure the correct
conductor is connected to the appropriate AC switch on the inverter.
- This inverter may be damaged due to moisture or dust intrusion.
DO NOT OPEN
DANGER: ELECTRICAL HARZARD!!
WARNING !
CAUTION: POINT OF CONNECTION !
CAUTION: WRONG AC WIRING !
ATTENTION
the power module section of the inverter.
33
Installation

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M36uM28uM80uM60u

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