SMA Solar Technology AG
Danger to life due to electric shock when touching live system components in
backup mode
Even if the AC miniature circuit breaker and the DC load-break switch of the inverter are
disconnected, parts of the system may still be live when the battery is switched on due to backup
mode.
• Prior to performing any work on the inverter, disconnect it from all voltage sources as
described in this document.
Danger to life due to electric shock when live components or DC cables are
touched when working on the battery
The DC cables connected to the battery may be live. Touching live DC cables results in death or
serious injury due to electric shock.
• Prior to performing any work on the battery, disconnect the inverter from all voltage sources
as described in this document.
Danger to life due to electric shock when live components or DC cables are
touched
The DC cables connected to a battery or a PV module 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.
• Do not disconnect the DC connectors under load.
• Wear suitable personal protective equipment for all work on the product.
Danger to life due to electric shock when live components are touched on
opening the product
High voltages are present in the live parts and cables inside the product during operation.
Touching live parts and cables results in death or lethal injuries due to electric shock.
• Do not open the product.
Quick Reference Guide
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STPx.0-3SE-40-IS-xx-12
2 Safety
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