Danger To Life Due To Electric Shock If External Disconnect Switch Is Missing; Danger Of Fire Due To Missing Or Incorrect Fuse; Risk Of Fire Due To Dirty Or Oxidized Contact Surfaces Of Live Aluminum Conductors - SMA SUNNY HOME MANAGER 2.0 Beknopte Handleiding
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Danger to life due to electric shock when live components or cables are touched
High voltages are present in the conductive components or cables of the product. Touching live parts and cables
results in death or lethal injuries due to electric shock.
• Disconnect the product from voltage sources and make sure it cannot be reconnected before carrying out any
work on the product.
• Before carrying out any work on the product, disconnect the grid side from all voltage sources using the
installed disconnect switch.
• Ensure that the conductors to be connected are de-energized.
• Clean the product with a dry cloth only.
• Only use the product in a dry environment and keep it away from moisture.
• Install the product in the switch cabinet only and ensure that the connection areas for the line conductors and
the neutral conductor are behind a cover or have contact protection.
• Observe the prescribed minimum clearance between the network cable and live installation components, or
use suitable insulation.
Danger to life due to electric shock if external disconnect switch is missing
High voltages are present in the conductive components. Touching live parts results in death or lethal injuries due to
electric shock.
• Install an external disconnect switch between the product and the grid-connection point. The external
disconnector must be close to the product and easily accessible.
• Before carrying out any work on the product, disconnect the grid side from all voltage sources using the
installed disconnect switch.
Danger to life due to electric shock in case of overvoltages and if surge protection is missing
Overvoltages (e.g., in the event of a flash of lightning) can be further conducted into the building and to other
connected devices in the same network via the network cables or other data cables if there is no surge protection.
Touching live parts and cables results in death or lethal injuries due to electric shock.
• Ensure that all devices in the same network are integrated in the existing overvoltage protection.
Danger of fire due to missing or incorrect fuse
If a fuse is missing or incorrect and a fault occurs, a fire may be caused. This can result in death or serious injury.
• Protect the line conductors of the product with a fuse or a selective circuit breaker with max. 63 A.
Risk of fire due to dirty or oxidized contact surfaces of live aluminum conductors
Connecting dirty or oxidized contact surfaces with aluminum conductors reduces the ampacity of the live terminals,
thereby increasing the transition resistances. This can cause components to overheat and catch fire.
• The contact surfaces are to be cleaned, brushed, and treated with acidic and alkaline substances (e.g.
petroleum jelly or special thermal grease).
Quick Reference Guide
DANGER
DANGER
DANGER
WARNING
WARNING
2 Safety
HM-20-IS-xx-21
7
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