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SMA offers its own Rapid Shutdown System to operate with Sunny Boy inverters. It is certified for UL 1741 and compliant with 2014 NEC 690.12 rapid shutdown requirements. It allows for the the use of SMA Secure Power Supply (SPS) unique feature and is also compatible with Sunny Boy 5.0-US/6.0-US and TL-US inverters with multiple MPPT channels. The SMA rapid shutdown does not interfere with the AFCI function of the Sunny Boy inverters. It features an automatic self-test upon startup to ensure proper functionality.
The Rapid Shutdown System is composed of the Rapid Shutdown Box (part no. RSB-2S-US-10) and the Rapid Shutdown Controller (part no. RSC-1X-US-10)
Rapid Shutdown Box
SMA part no.: RSB-2S-US-10
Maximum input voltage: 600VDC Minimum input voltage: 110VDC Number of DC inputs: 4 strings, 2 in parallel per channel DC operating current per channel Maximum channel short circuit current per channel Integrated power supply Ambient temperature range Dimensions without pre-wired cables (W x H x D): 542 x 340 x 75 mm / 21.3 x 13.4 x 2.95 in
Weight: 3.8 kg / 8.4 lb DC input: Cable wir MC4 connectors
Conduit size for home run: 3/4”
Warranty: 10 years
Rapid Shutdown Controller
SMA part no.: RSC-1X-US-10
Status indicator: Front LED lights
Dimensions (W x H x D): 80 x 153 x 104 mm / 3.15 x 6.02 x 4.1 in
Weight: 0.3 kg / 0.72 lb
Enclosure: Polycarbonate rating Type 4X