Installation Guide
SMA America, LLC 13 Technical Data
Installation Manual SB3-5TLUS22-IA-en-16 91
13.4 DC Disconnect
13.5 Climatic Conditions
According to IEC 60721-3-4, installation type C, class 4K4H
According to IEC 60721-3-2, transport type E, class 2K3
13.6 Features
Maximum rated switching current per string input 20 A
Maximum switching voltage 600 V
Degree of protection NEMA 3R
Extended temperature range − 40°F to +140°F ( − 40°C to +60°C)
Extended humidity range 0% to 100%
Extended air pressure range 79.5 kPa to 106 kPa
Temperature range − 40°F to +140°F ( − 40°C to +60°C)
DC connection Screw terminal
AC connection Spring-cage terminal
Display LC graphic display
RS485, galvanically isolated optional
Speedwire with Webconnect function optional
Fan retrofit kit optional
SPS module optional*
* only with a corresponding order, no retrofitting possible










