SMA SSM8-21-BS - Manual (Page 8)

2 Safety SMA Solar Technology AG
8 SSMxx-21-IA-BS-JP-en-20 Installation Manual
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Danger to life from electric shock if the Sunny String-Monitor is left unlocked
If the Sunny String-Monitor is unlocked, unauthorized persons will have access to components carrying lethal voltages.
Touching live components can result in death or serious injury due to electric shock.
• Always lock the Sunny String-Monitor.
• Remove the keys from the door locks.
• Keep the keys in a safe place.
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.
• Use suitable tools when working on the device.
• Avoid repeated tightening of live bolted connections as this may result in inadmissibly high torques.
Danger to life from electric shock if the DC load-break switch is damaged
Switching the DC load-break switch at temperatures below ‒25°C may cause damage to the DC load-break switch.
Correct disconnection function can no longer be guaranteed. High voltages are present in components that are not
properly disconnected. Touching live components can result in death or serious injury due to electric shock.
• Do not switch the DC load-break switch at temperatures below ‒25°C.
Danger to life from electric shock due to damaged fuse holders
Using the fuse holders at temperatures below ‒25°C may cause damage to the fuse holders. Correct disconnection
function can no longer be guaranteed. High voltages are present in components that are not properly disconnected.
Touching live components can result in death or serious injury due to electric shock.
• Do not use the fuse holders at temperatures below ‒25°C.
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Risk of burns due to hot components or devices
Some components of the Sunny String-Monitor can get very hot during operation. Touching these components can
cause burns.
• Observe the warnings on the components.
• During operation, do not touch any components or devices marked with such warnings.
• After disconnecting the PV system from voltage sources, wait until all hot components have cooled down sufficiently.
• Wear suitable personal protective equipment for all work on the product.