10 Disconnecting the Inverter from Voltage Sources
SMA Solar Technology AG
Operating manual
SHP-US-20-BE-en-10
58
10 Disconnecting the Inverter from Voltage Sources
Prior to performing any work on the inverter, always disconnect it from all voltage sources as
described in this section. Always adhere to the prescribed sequence.
NOTICE
Destruction of the measuring device due to overvoltage
• Only use measuring devices with a measurement range designed for the maximum AC and
DC voltage of the inverter.
Procedure:
1. Disconnect the AC circuit breaker and secure it against reconnection.
2. Disconnect the DC terminal of the inverter via the PV combiner box or the external DC switch.
3. Wait five minutes.
4. Wait until the LEDs have gone out.
5. Unscrew all screws of the enclosure lid (TX25) and
remove it.
12x
6. Set the screws and the enclosure lid aside and store safely.
7. Use a current clamp to ensure that no current is
present in the DC cables. As a result, a possible
residual current can be detected.
0.0A
0.0A
2x
Summary of Contents for SHP 125-US-20
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