SUNNY CENTRAL STRING-MONITOR US

The U.S. insurance for even better solar yields

Detailed panel monitoring: the Sunny Central String-Monitor US. By measuring and comparing the individual string currents, power deviations in the solar array are detected reliably and are analyzed directly in the Sunny Central. For the measurement of the string currents, there are three variants of string fuse protection, all of which comply with the NEC standard, making the Sunny Central String-Monitor well suited for use in the U.S. solar market.

Efficient

  • Optimum fault recognition for high yields
  • Reduced system costs through use of up to nine devices per Sunny Central inverter 

 

Precise

  • System monitoring as with Sunny Boy via string current monitoring
  • DC distributor box with NEMA 3R with integrated current measurement

 

Flexible

  • Three separate constructions for the best possible system design
  • Optionally suitable for use near to the coast

 

Straightforward

  • Convenient mounting preparation due to removable floor and side plates
  • Simple configuration of the string current monitoring
PV generator connection Sunny Central String-Monitor US Version 24 Sunny Central String-Monitor US Version 32 Sunny Central String-Monitor US Version 64
Input voltage range 0 ... 600 V DC 0 ... 600 V DC 0 ... 600 V DC
Max fuse size (10 x 38 class CC fuses) 20 A, 600 V DC 1) 15 A, 600 V DC 1) 8 A, 600 V DC 1)
Max. PV short-circuit current per string 12.8 A 2) 9.6 A 2) 5.1 A 2)
Max. number of strings 24 32 64
Fused inputs per measuring channel 3 4 8
PV array configuration neg. or pos. grounded neg. or pos. grounded neg. or pos. grounded
Number of measuring channels 8 8 8
Sunny Central Connection      
DC short-circuit current 480 A 480 A 512 A
Max. operating output current, A DC, continuous 308 A 308 A 328 A
Max. number of cables per output port 2 2 2
Mechanical Data      
Dimensions: W x H x D in inches 31.5 x 31.5 x 9.8 31.5 x 31.5 x 9.8 31.5 x 47.2 x 11.8
Weight 143 lbs 146 lbs 194 lbs
Protection rating NEMA 3R NEMA 3R NEMA 3R
Housing material Steel or Aluminum Steel or Aluminum Steel or Aluminum
Ambient conditions      
Permissible ambient temperatures –13 °F to 113 °F –13 °F to 113 °F –13 °F to 113 °F
Rel. humidity up to 95%,
condensation possible		 up to 95%,
condensation possible		 up to 95%,
condensation possible
Communication      
Connection SSM-US RS485 RS485 RS485
       
Type designation SSM-US SSM-US SSM-US
       
1) These values indicate input current without the derating factor of NEC articles 690.8(A)(1) and 690.8 (8)(1) applied.      
2) These values indicate input current with the derating factor of NEC articles 690.8(A)(1) and 690.8 (8)(1) applied.      

Downloads

Language:
Data sheet


240 KB
SUNNY CENTRAL STRING-MONITOR US - Accurate monitoring for large North American systems ensures high yields
Type: Data sheet
Language: English (US)
Document number: SUNNYSTRINGU-DUS100716
Version number: 1.6
Technical information


803 KB
SUNNY CENTRAL STRING-MONITOR US - Accessories for all Sunny Central inverters on the North American market
Type: Technical information
Language: English (US)
Document number: SSM-UUS094511
Version number: 1.1
Technical Description


2.699 KB
SUNNY CENTRAL STRING-MONITOR US - Technical Description
Type: Technical Description
Language: English (US)
Document number: SSMUS-TUS094511
Version number: 1.1


325 KB
SUNNY CENTRAL STRING-MONITOR US - Preparation for Installation
Type: Technical Description
Language: English (US)
Document number: SSMUS_Aus-TUS094310
Version number: 1.0