Safety during Electrical Connection

DANGER

Danger to life due to electric shock

Do not disconnect under load

PV plug connections must not be disconnected while under load. They can be placed in a no load state by switching off the DC/AC converter or breaking the AC circuit.

  1. Make sure that the two-pole circuit breaker is switched off and cannot be reconnected.
  2. Make sure that the PV modules are covered.

DANGER

Risk of electric shock due to contact with live components when opening the Sunny Multigate

There are live components inside the Sunny Multigate. There is a risk of electric shock if you open the Sunny Multigate.

  1. Never open the Sunny Multigate.

WARNING

Danger to life due to electric shock in case of installations without equipment grounding conductor

In case of installations without equipment grounding conductor, grounding of the inverters is ensured via the AC cable only. There is a risk of electric shock under fault conditions at the inverter if PV modules are connected to the inverter and the connection to the grounding conductor via the Sunny Multigate-US is interrupted.

  1. Observe the installation sequence ( > Electrical Connection).
  2. Before disconnecting a single inverter on the AC side: Disconnect all following inverters of the PV system on the DC side.

NOTICE

Damage to the inverter due to moisture ingress

When the inverter is open, moisture can penetrate and cause damage to the inverter. The tightness is no longer intact and the function of the inverter cannot be guaranteed.

  1. Never open the inverter.

CAUTION

Risk of fire

  1. To reduce the risk of fire, connect only to a circuit provided with 15 A maximum branch-circuit overcurrent protection in accordance with the National Electrical Code® (NE, ANSI/NFPA 70).

Electrical installations

All electrical installations must be carried out in accordance with the local standards and the National Electrical Code® ANSI/NFPA 70 or the Canadian Electrical Code® CSA C22.1.

  1. With an ungrounded PV array/PV module the National Electrical Code®, ANSI/NFPA 70 wiring methods are to be used, including Sec. 690.35.
  2. The DC input and AC output circuits are isolated from the enclosure and that system grounding, if required by Section 250 of the National Electrical Code®, ANSI/NFPA 70, is the responsibility of the installer.
  3. The provisions in the National Electrical Code® article 690.8 (A)(3) for determination of the maximum micro inverter output circuit current apply to this product.
  4. The circuit conductors and overcurrent devices are considered to be subjected to the maximum micro inverter output circuit current and shall be sized to carry not less than 125% of the maximum currents as required by the National Electrical Code® article 690.8(A)(3).
  5. The overcurrent protection for the AC output circuit is to be provided by the installer.
  6. If cables of type TC-ER (Tray Cable Exposed Run) are used, the requirements of the National Electrical Code®, article 336.10 must be observed.
  7. Make sure that no cables used for electrical connection are damaged.
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