2 Safety
SMA Solar Technology America LLC
Installation Manual
RSS-US-IA-xx-14
8
2
Safety
2.1
Intended Use
The Rapid Shutdown System consists of one or more Rapid Shutdown Boxes and one Rapid
Shutdown Controller. PV systems equipped with the Rapid Shutdown System satisfy the
requirements of UL 1741, Second Edition 2015 and Canadian Electrical Code 2015. The Rapid
Shutdown Controller activates and deactivates the Rapid Shutdown System and signals the status
of the Rapid Shutdown System via the green and red LEDs. The Rapid Shutdown Box electrically
discharges the PV array conductors from the Rapid Shutdown Box to the inverter within ten seconds
of activation of the emergency switch on the Rapid Shutdown Controller to ≤ 30 V. This is done by
the disconnection of the PV array on the input side of the Rapid Shutdown Box while the stored
leading energy of the inverters is discharged simultaneously. When the irradiation on the PV array
is sufficient and the voltages have been electrically discharged in accordance with specification, the
green LED on the Rapid Shutdown Controller glows green constantly. When none of the LEDs of the
Rapid Shutdown Controllers are glowing after actuating the emergency switch, either the irradiation
on the PV array is too low and, thus, the supply voltage of the Rapid Shutdown System insufficient
or the installation of the Rapid Shutdown System is faulty or the Rapid Shutdown Box is defective.
The product is certified for use in PV systems with the following SMA inverters:
• SB 3000TL-US-22 / SB 3800TL-US-22 / SB 4000TL-US-22 / SB 5000TL-US-22 / SB 6000TL-
US-22 / SB 7000TL-US-22 / SB 7700TL-US-22
• SB3.0-1SP-US-40 / SB3.8-1SP-US-40 / SB5.0-1SP-US-40 / SB6.0-1SP-US-40 / SB7.0-1SP-
US-40 / SB7.7-1SP-US-40
Use of the product in PV systems with inverters of manufacturers other than SMA is not permitted.
A maximum of 16 Rapid Shutdown Boxes can be operated in a Rapid Shutdown System.
The product is suitable for indoor and outdoor use.
All components must remain within their permitted operating ranges and their installation
requirements at all times.
The product is approved for the US and Canadian market.
Use this product only in accordance with the information provided in the enclosed documentation
and with the locally applicable standards and directives. Any other application may cause
personal injury or property damage.
Alterations to the product, e.g. changes or modifications, are only permitted with the express written
permission of SMA. Unauthorized alterations will void guarantee and warranty claims and in most
cases terminate the operating license. SMA shall not be held liable for any damage caused by
such changes.
Any use of the product other than that described in the Intended Use section does not qualify as the
intended use.
The enclosed documentation is an integral part of this product. Keep the documentation in a
convenient place for future reference and observe all instructions contained therein.
The type label must remain permanently attached to the product.
ENGLISH
Summary of Contents for RSB-2S-US-10
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