6 electrical connection, 1 safety during electrical connection, 2 overview of the connection area – SMA WB 3000-21 Installation User Manual
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6 Electrical Connection
SMA Solar Technology AG
28
WB3-5TL-21-IA-en-10
Installation Manual
6 Electrical Connection
6.1 Safety during Electrical Connection
Electric Shock
High voltages that can cause fatal electric shocks when touched are present in the live components
of the inverter.
• Prior to performing any work on the inverter, disconnect it from any voltage source as described
in this document (see Section 9).
Electrostatic Discharge
Touching electronic components can cause damage to or destroy the inverter through electrostatic
discharge.
• Ground yourself before touching any components.
6.2 Overview of the Connection Area
6.2.1 View from Below
Figure 10: Enclosure openings at the bottom of the inverter
Position
Description
A
Cable gland M20x1.5 for connection to the multi-function interface or connection
of the fan retrofit kit
B
Enclosure opening with filler-plug for connection to the communication interface
C
Enclosure opening with filler-plug for connection to the communication interface
D
Cable gland M32x1.5 for connection to the power distribution grid
A
B
C
D