Product Specifications

TS4-R-F SUNSPEC RAPID SHUTDOWN
Compliance made simple and economical
The new TS4-R-F rapid shutdown solution is a cost-effective way to fulfill UL 1741, NEC 2014 and NEC 2017 requirements.
It is compatible with the power line based SunSpec communication signal for rapid shutdown, making it simple to
implement with robust functionality. Using the existing DC wires between the inverter and module-level electronics as
a communication channel significantly reduces installation time and labor costs, since no additional communication
equipment is needed. The TS4-R-F’s compliance with the SunSpec open standard makes it the most flexible solution on
the market, as it can be combined with multiple types of inverters.
Cost-effective
• Simple to install via existing
DC wires
• No additional components
necessary, reducing balance
of system costs
Safe and reliable
• SunSpec compliant rapid
shutdown that fulfills:
» UL 1741
» NEC 2014
» NEC 2017
Reduced risk
• Technical support from SMA’s #1
ranked service organization
• Simple, safe repair or
replacement of proprietary snap-
in cover—no cabling work
Simple and robust
• Power line based communication
compatible with SunSpec signal
for rapid shutdown
• Shuts down PV module whenever
SunSpec signal is interrupted
TS4-R-F SUNSPEC RAPID SHUTDOWN
TS4-R-F
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