2 Safety
SMA Solar Technology AG
Operating manual
SHP-US-20-BE-en-10
11
WARNING
Danger to life due to fire or explosion
In rare cases, an explosive gas mixture can be generated inside the product under fault
conditions. In this state, switching operations can cause a fire or explosion. Death or lethal
injuries due to fire or flying debris can result.
• In case of error, only carry out corrective measures specified by SMA Solar Technology AG
(see Section 12 "Troubleshooting", page 61). If no corrective measures are specified, do
not perform any actions on the product. Contact the Service.
• Ensure that unauthorized persons have no access to the product.
• Disconnect the AC circuit breaker and secure it against reconnection.
• Disconnect the PV array from the product via an external disconnection device.
WARNING
Risk of fire due to failure to observe torque specifications on live bolted
connections
Failure to follow the specified torques reduces the ampacity of live bolted connections so that the
contact resistances increase. This can cause components to overheat and catch fire.
• Ensure that live bolted connections are always tightened with the exact torque specified in
this document.
• When working on the device, use suitable tools only.
• Avoid repeated tightening of live bolted connections as this may result in inadmissibly high
torques.
CAUTION
Risk of burns due to hot enclosure parts
Some parts of the enclosure can get hot during operation.
• During operation, do not touch any parts other than the enclosure lid of the inverter.
• Wait until the inverter has cooled down before touching the enclosure.
Summary of Contents for SHP 125-US-20
Page 95: ......
Page 96: ...www SMA Solar com...
