SMA Solar Technology AG
Danger to life due to electric shock when live components or DC cables are
touched
The DC cables connected to a battery may be live. Touching live DC cables results in death or
serious injury due to electric shock.
• Disconnect the product and battery from voltage sources and make sure it cannot be
reconnected before working on the device.
• Observe all safety information of the battery manufacturer.
• Do not touch non-insulated parts or cables.
• Wear suitable personal protective equipment for all work on the product.
Danger to life due to electric shock when live components are touched
because the battery grounding is connected to grounding conductor terminals
Due to the connection of the battery grounding to the grounding conductor terminals, high
voltages might be present on the enclosure of the inverter. Touching live parts and cables results
in death or lethal injuries due to electric shock.
• Only the grounding conductors of the AC power cables may be connected to the
grounding conductor terminals of the inverter.
• Observe all safety information of the battery manufacturer.
• Ground the battery according to the battery manufacturer's requirements.
• If the locally applicable standards and directives require battery grounding, connect the
battery grounding to the grounding busbar in the distributor.
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 and the battery are integrated into the existing
surge protection.
• When laying the network cables or other data cables outdoors, it must be ensured that a
suitable surge protection device is provided at the transition point of the cable from the
product or the battery outdoors to the inside of a building.
Quick Reference Guide
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DANGER
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2 Safety
STPSxx-20-IS-xx-11
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