User Manual

ManualsBrandsSMA ManualsDisconnectsSMA Rapid Shutdown Box, 4 Strings, 2 Channels

RSS-Compability-US-TI-en-10 | Version 1.0 AMERICAN ENGLISH

Introduction

The purpose of this note is as follows:

• to explain and identify acceptable combinations of SMA Residential Inverters and the SMA Rapid Shutdown Box

(RSB).

• to identify recommended types of wire/cable for Rapid Shutdown Controller (RSC) connection, multi-tap connectors

for the inverters SBx.x-1SP-US-40 (Sunny Boy x.x-US), and sealing gaskets for raintight conduit fittings and cable

glands.

This document is intended for use by SMA customers.

The Background is as follows:

• NEC 2014 690.12 specifies a requirement for rapid shutdown of PV systems installed onbuildings

• SMA supplies a UL listed device meeting NEC 2014 690.12.

Technical Information

Rapid Shutdown of PV Systems on Buildings (NEC 2014) with

SMA Residential Inverters, SMA Rapid Shutdown Box (RSB) and

SMA Rapid Shutdown Controller (RSC)

Summary of content (10 pages)

PAGE 1
Technical Information Rapid Shutdown of PV Systems on Buildings (NEC 2014) with SMA Residential Inverters, SMA Rapid Shutdown Box (RSB) and SMA Rapid Shutdown Controller (RSC) Introduction The purpose of this note is as follows: • to explain and identify acceptable combinations of SMA Residential Inverters and the SMA Rapid Shutdown Box (RSB). • to identify recommended types of wire/cable for Rapid Shutdown Controller (RSC) connection, multi-tap connectors for the inverters SBx.x-1SP-US-40 (Sunny Boy x.
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SMA Solar Technology America LLC 1 Applicable Products 1 Applicable Products SMA Inverters • SBx.x-1SP-US-40 • SB xx00TL-US-22 SMA Rapid Shutdown System • RSB-2S-US-10 Version RSB channels Maximum channel Short circuit current per channel [adc] Enclosure Rating RSB-2S-US-10 2 36 NEMA 4X • RSC-1X-US-10 2 SMA Rapid Shutdown Controller Wiring/Cabling The SMA Rapid Shutdown System consists of a Rapid Shutdown Box (RSB) and a Rapid Shutdown Controller (RSC).
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SMA Solar Technology America LLC 3 Multi-tap Connector use with SMA Rapid Shutdown System and 3 Multi-tap Connector use with SMA Rapid Shutdown System and SBx.x-1SP-US-40 Inverters The SMA Rapid Shutdown System consists of one or more Rapid Shutdown Boxes (RSB) and one Rapid Shutdown Controller (RSC). The RSB is a two channel device. Each channel is capable of operating at 20 Amps of PV current and has a Maximum Circuit Current rating of 36 Amps.
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Requirements for Insulated Multi-Tap Connector SMA Solar Technology America LLC 4 Requirements for Insulated Multi-Tap Connector 600 V, 90 °C, rated for copper conductors Compatible wire range 10 AWG to 6 AWG Examples ILSCO Nimbus PBTS Series Part # PBTS-3-4 Polaris IPL Series Part # IPL 4-3 or IPL4-3A Polaris IPLM Series Part # IPLM 4-3 or IPLM 1/0-3 Polaris Grey Series Part # IPLG6-3 or IPLG1-3 Burndy UNITAP Series Part # BIBS43 5 SMA Rapid Shutdown System Sealing Gaskets for Raintight Conduit Fi
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SMA Solar Technology America LLC 6 Configuration Recommendations and Reference Diagrams 6 Configuration Recommendations and Reference Diagrams 6.1 Important Notes • If PV subarrays on a roof are separated by distances greater than defined in 2014 NEC 690.12, then at least one RSB will be required per subarray. • Two strings can be directly connected to one channel of the SMA RSB if the total module short circuit current is equal to or less than 36A Isc. • Each channel has two string inputs.
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SMA Solar Technology America LLC 6 Configuration Recommendations and Reference Diagrams SMA Sunny Boy Part numbers SBx.x-1SP-US-40 Installed Strings 3 RSB Qty. MPP1 MPP2 MPP3 String per RSB-1 CH 1 String per RSB-1 CH 2 2 1 1 Important A/B Strings need to have the same quantity of modules in series. 3-Wire Connectors needed to transition from one conductor to two conductors are not provided by SMA.
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SMA Solar Technology America LLC 6 Configuration Recommendations and Reference Diagrams SMA Sunny Boy Part numbers SBx.x-1SP-US-40 Installed Strings 3 Technical Information RSB Qty.
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SMA Solar Technology America LLC 6 Configuration Recommendations and Reference Diagrams SMA Sunny Boy Part numbers SB xx00TL-US-22 Installed Strings 2 8 RSB Qty.
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SMA Solar Technology America LLC 6 Configuration Recommendations and Reference Diagrams SMA Sunny Boy Part numbers SB xx00TL-US-22 Installed Strings 3 Technical Information RSB Qty.
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SMA Solar Technology America LLC 6 Configuration Recommendations and Reference Diagrams SMA Sunny Boy Part numbers SB xx00TL-US-22 Installed Strings 4 10 RSB Qty.