SUNNY BOY Combiner Box

SUNNY BOY Combiner Box

Simplify wiring for added convenience and safety

SMA’s Sunny Boy / Sunny Central Combiner Boxes are ETL Listed to UL 1741 for countries requiring certification. Available in sizes ranging from six to 52 PV inputs, they provide greater flexibility and expandability in system design. Oversized bus-work adds high efficiency and dependability where it’s needed most. The large NEMA 3R/4 enclosure provides ample room for conductors, which reduces installation time. Designed with installers in mind, the Sunny Boy/Sunny Central Combiner Boxes save valuable time and resources while improving system design and reliability.

Certified

  • ELT Listed to UL 1741 for countries that require certification


Convenient

  • Greatly simplifies input and output wiring
  • Available in 6 to 52 circuit configurations


Reliable

  • Reliable bus-work for efficient high current conductor combining
  • Compact, rugged NEMA 3R/4 wall mount steel enclosure


Safe

  • PV positive wires all land directly on Touch Safe™ fuse holders
Show All / Hide All SBCB-6 SCCB-12 SCCB-28 SCCB-52
  (Sunny Boy) (Sunny Central) (Sunny Central) (Sunny Central)
Technical data
Number of Inputs (Positive & Negative) 6 12 28 52
Positive Input Wire Size 10 to 6 AWG 10 to 6 AWG 10 to 6 AWG 10 to 6 AWG
Positive Input Terminal Torque 14 in-lb. 14 in-lb. 14 in-lb. 14 in-lb.
Negative Input Wire Size 10 to 6 AWG 10 to 6 AWG 10 to 6 AWG 10 to 6 AWG
Negative Input Terminal Torque 35 in-lb. 35 in-lb. 35 in-lb. 35 in-lb.
Output Wire Size 6 AWG to 350 KCMIL 6 AWG to 350 KCMIL 6 AWG to 300 KCMIL 6 AWG to 300 KCMIL
Output Terminal Torque 350 in-lb. 350 in-lb. 350 in-lb. 350 in-lb.
Max. Input Fuse Rating (Midget) 15 A, 600 VDC 20 A, 600 VDC 15 A, 600 VDC 8 A, 600 VDC
Max. Output Current 90 ADC 240 ADC 420 ADC 416 ADC
Max. Continuous Output Current 72 ADC 192 ADC 336 ADC 333 ADC
Max. Number of Output Wires 1 Pos, 1 Neg 1 Pos, 1 Neg 2 Pos, 2 Neg 2 Pos, 2 Neg
PV Array Configuration Negative Grounded* Negative Grounded* Negative Grounded* Negative Grounded*
Enclosure Type NEMA 3R/4, Steel NEMA 3R/4, Steel NEMA 3R/4, Steel NEMA 3R/4, Steel
Weight (Approximate) 11 lbs 48 lbs 56 lbs 70 lbs
Dimensions W x H x D in inches 8 x 10 x 6 16 x 16 x 6 20 x 20 x 8 30 x 42 x 12
Footnote
Other sizes and designs available upon request
*Fusing available on positive or negative input, specify when ordering
Language

User Manual

SBCB-6, SCCB-12, 28, 52, 6 to 52 Circuit Combiner Boxes - User Manual COMBOX-UUS120824.pdf
  • Type: User Manual
  • Language: English (US)
  • Number: COMBOX-UUS120824
  • Version: 2.4

Data sheet

SUNNY BOY/SUNNY CENTRAL COMBINER BOXES - Simplify wiring for added convenience and safety COMBINERBOX-DUS120718W.pdf
  • Type: Data sheet
  • Language: English (US)
  • Number: CombinerBox-DUS120718
  • Version: 1.8

Certificate

Buy American Act of 1933 - Qualification Letter BAA Qualification Letter 02042014.pdf
  • Type: Certificate
  • Language: English (US)
  • Number: BAA Qualification Letter 02042014
  • Version: 1.4
UL - NOTICE OF AUTHORIZATION TO APPLY THE UL MARK - SUNNY BOY COMBINER BOX UL_SBCBTL6-10-ZUS103610.pdf
  • Type: Certificate
  • Language: English (US)
  • Number: UL_SBCBTL6-10-ZUS103610
  • Version: 1.0
Manufacturer’s Certification Statemant SMAManufactCert9Dec2014.pdf
  • Type: Certificate
  • Language: English (US)
  • Number: SMAManufactCert9Dec2014
  • Version: