2 Safety
SMA Solar Technology AG
Quick Reference Guide
STP50-40-IS-xx-11
4
1.5
Symbols
Symbol
Explanation
Information that is important for a specific topic or goal, but is not
safety-relevant
☐
Indicates a requirement for meeting a specific goal
☑
Desired result
✖
A problem that might occur
2
Safety
2.1
Intended Use
The Sunny Tripower is a transformerless PV inverter, with 6 MPP trackers, that converts the direct
current of the PV array to grid-compliant, three-phase current and feeds it into the utility grid.
The product is suitable for indoor and outdoor use.
The product must only be operated with PV arrays of protection class II in accordance with
IEC 61730, application class A. The PV modules must be compatible with this product.
The product is not equipped with a transformer and therefore has no galvanic isolation. The
product must not be operated with PV modules whose outputs are grounded. This can cause the
product to be destroyed. The product may be operated with PV modules whose frame is grounded.
PV modules with a high capacity to ground must only be used if their coupling capacity does not
exceed 12.6 μF (for information on how to calculate the coupling capacity, see the Technical
Information "Leading Leakage Currents" at www.SMA-Solar.com).
All components must remain within their permitted operating ranges and their installation
requirements at all times.
The product must only be used in countries for which it is approved or released by SMA Solar
Technology AG and the grid operator.
The product is also approved for the Australian market and may be used in Australia. If DRM
support is specified, the inverter may only be used in conjunction with a Demand Response
Enabling Device (DRED). This ensures that the inverter implements the commands from the grid
operator for active power limitation at all times. The inverter and the Demand Response Enabling
Device (DRED) must be connected in the same network and the inverter Modbus interface must be
activated and the TCP server set.
Use this product only in accordance with the information provided in the enclosed documentation
and with the locally applicable standards and directives. Any other application may cause
personal injury or property damage.
ENGLISH