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String inverter Solutions

GameChange string inverter solutions provide low-cost and space-saving combiners and disconnects for residential and commercial solar systems that utilize string inverters. These solutions can be configured as combining or pass-through, with or without integrated disconnects. Contactor combiners or pass-through units, connected to GameChange power supply, serve as Rapid Shutdown devices. All products are ETL listed to UL-1741 for 1000 VDC photovoltaic systems and use compact NEMA-4X polycarbonate enclosures.
Product Features
ETL listed to UL-1741
2 to 6 input circuits per MPPT
Rated for 1000 VDC and continuous duty
Touch-safe fuse holders
Ground block included
NEMA-4X polycarbonate enclosures

Integrated load break

disconnect(s) option

Configurations for single or dual

MPPT inverters

Configurations for floating arrays

Screenshot 2026-01-22 at 4.11.01 PM.png
Available Options
Specifications
Product Description
Junction Box
Combiner
Pass-through
Disconnect Units
Product part number
C6SK-1-4XP
CSK-6-FF-4XP
FSK-6-FF-4XP
F2SK-6-FF-4XP; FSK64-4-FF-N4; F2SK64-4-FF-N4; F2SK32-1-4XP; F4SK32-1-4XP
Topology
Grounded or Floating
Grounded
Floating
Floating
Maximum voltage (VDC)
1000
1000
1000
1000
Integrated load break disconnect
No
No
No
No (F2SK-6-FF-4XP); Yes (FSK64-4-FF-N4, F2SK64-4-FF-N4, F2SK32-1-4XP, F4SK32-1-4XP)
Number of input circuits
6
6
6
2x6 (F2SK-6-FF-4XP); 4 (FSK64-4-FF-N4); 2x4 (F2SK64-4-FF-N4); 2 (F2SK32-1-4XP); 4 (F4SK32-1-4XP)
Number of output circuits
6
1
1
2 (F2SK-6-FF-4XP, FSK64-4-FF-N4, F2SK64-4-FF-N4, F2SK32-1-4XP); 4 (F4SK32-1-4XP)
Input conductor size range (AWG)
#20 - 6
#14 - 8
#14 - 8
#14 - 8
Output conductor size range (AWG)
#20 - 6
#14 - 2
#14 - 2
#14 - 2 (F2SK-6-FF-4XP); #12 - 2 (FSK64-4-FF-N4, F2SK64-4-FF-N4); #14 - 8 (F2SK32-1-4XP, F4SK32-1-4XP)
Max rated current (ADC cont. per output circuit)
30
75
75
2x75 (F2SK-6-FF-4XP); 64 (FSK64-4-FF-N4); 2x64 (F2SK64-4-FF-N4); 32 (F2SK32-1-4XP, F4SK32-1-4XP)
Max fuse size (Amps)
N/A
30
30
30 (F2SK-6-FF-4XP, FSK64-4-FF-N4, F2SK64-4-FF-N4); N/A (F2SK32-1-4XP, F4SK32-1-4XP)
Enclosure size (Inches)
9x8x2
9x8x2
12x10x4
16x14x7 (F2SK-6-FF-4XP, FSK64-4-FF-N4); 20x20x6 (F2SK64-4-FF-N4); 10x8x4 (F2SK32-1-4XP); 12x10x4 (F4SK32-1-4XP)
Approx. weight (Pounds)
4
4
10
14 (F2SK-6-FF-4XP); 18 (FSK64-4-FF-N4); 20 (F2SK64-4-FF-N4); 6 (F2SK32-1-4XP); 10 (F4SK32-1-4XP)
Enclosure NEMA rating
4X
4X
4X
4X (F2SK-6-FF-4XP, FSK64-4-FF-N4, F2SK32-1-4XP, F4SK32-1-4XP); 4 (F2SK64-4-FF-N4)
*Other options available upon request. Please note dimensions and weight may vary for any custom solutions. Contact us for details.
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