A string combiner for 1500 VDC that protects and enhances the performance of your photovoltaic installation.
Solution at a glanceApplications
A Conext SmartGenTM Array Box is a photovoltaic (PV) string combiner box installed between the PV modules and the inverter, providing protection and performance monitoring for your PV power plant.
Key benefits
• Reliable: designed for the most severe environments; corrosion and pollution resistant
• Flexible: fits every PV power plant design, module technology and customer preferences for PV cable connection
• Cost effective: self-powering to avoid the need for external auxilliary power
• Easy to install: 750mm height for fitting under any racking design, wide variety of mounting solutions and DC fuse systems for reduced on-site labor
• Cloud-connected: enables PV module aging, soiling and shading detection through ConextTM Advisor 2 monitoring and control solution
Device short name Array Box In-Box 16/32 Array Box In-Box24 Array Box In-Box 32
Available versionsProtectString MonitoringString Monitoring High Power
ProtectString MonitoringString Monitoring High Power
ProtectString MonitoringString Monitoring High Power
Electrical specifications
PV input
Number of connectable PV strings Up to 32 Up to 24 Up to 32
Max. voltage in open circuit 1500 Vdc 1500 Vdc 1500 Vdc
PV input cable entries Cable plate membrane, IP 65 - Accepts 1 or 2 PV string cables Ø 4 mm² to Ø 10 mm² each
Maximum current per input (Inc) @ STCProtect: 20.9 AString Monitoring: 20.9 AString Monitoring High Power: 25.0 A
Protect: 13.9 AString Monitoring: 13.9 AString Monitoring High Power: 16.6 A
Protect : 10.4 AString Monitoring: 10.4 AString Monitoring High Power: 12.5 A
DC output
Rated current of the assembly (InA) @ STC according to IEC 61439-2 Protect : 335 A - String Monitoring : 335 A - String Monitoring High Power: 400 A
Rated current of the assembly (InA) @ 50°C according to IEC 61439-2 Protect : 305 A - String Monitoring : 305 A - String Monitoring High Power: 350 A
Temperature derating (rated current) Derating 3.3% per °K over 50°C operating temperature
DC output cable entries Cable glands M40, Ø 22 mm to Ø 32 mm, IP 68
DC output cables 2 x 300 mm² or 1 x 400 mm² per polarity
Electrical protection (max)
Number of protected circuits 16 24 32
Type of protection 1500Vdc gPV fuses, size 10 x 85 mm, protection on both polarities. Fuse supplies available separately
Fuse installation Fuse holders
Overvoltage protection Surge arresters 1500Vdc, type 2, Iscpv 10kA, Imax 40kA, In 10kA, Up< 5kV (standard) or type 1+2 (option)
Environmental specifications (in operation)
Operating temperature range -40°C to 60°C (1)
-40°C to 60°C (1)
-40°C to 60°C (1)
Relative humidity Up to 100%, condensation possible Up to 100%, condensation possible Up to 100%, condensation possible
Altitude Up to 4000 m (2)
Up to 4000 m (2)
Up to 4000 m (2)
Mechanical specifications
Dimensions and weight
Dimensions (H x W x D) (mm) 750 x 1250 x 320 750 x 1250 x 320 750 x 1250 x 320
Weight (kg) 75kg 75kg 75kg
Enclosure
Material Fully insulated enclosure, electrical insulation class 2 (fibreglass reinforced polyester)
Fire resistance level Halogen-free, self extinguishing. Fire retardant. Tested to the glow wire at 960°C
Protection grade IP 65, IK 10
Installation
Installation modes On plinth (floor standing) / On a chair / Mounted on module racks with brackets
Installation accessories Canopy for Array Box In-Box
Monitoring and Communication (String Monitoring and String Monitoring High Power versions only)
Number of monitoring channels 8 (1 channel per group of 2 protected circuits)
8 (1 channel per group of 3 protected circuits)
8 (1 channel per group of 4 protected circuits)
PV string current scale and accuracy 0 to 60 A, accuracy +/-0.18% @25°C, +/- 0.8% @ the maximum operating temperature
PV string voltage scale and accuracy 0 to 1500 V, accuracy +/- 0.5% full scale
Internal temperature -40°C to 120°C, accuracy +/- 3°C
Digital Inputs 3 Digital inputs: Monitoring of overvoltage protection and main switch, 1 spare
External temperature / Irradiance sensors Possible using the optional weather sensor monitoring kit PVSAB15WB001. 1 input for temperature, 2 inputs for irradiance
Monitoring power supply PV powered, no need for external power supply cable
Communication Modbus RTU / RS 485 link (3)
Communication line overvoltage protection Included on communication board
Compliance IEC / EN 61439-1 and IEC / EN 61439-2
CE marking
Footnotes(1) See derating curves provided in the product documentation(2) Derating from 2000 m(3) PC software available for Modbus network settings. The PC can be connected at any network node.
Available versionsProtectString MonitoringString Monitoring High Power
Electrical specifications
PV input
Number of connectable PV strings16 with the pack of 32 connection sets PVSAB15LF32SCX (SunClixTM connectors)24 with the pack of 48 connection sets PVSAB15LF48SCX (SunClixTM connectors)32 with the pack of 64 connection sets PVSAB15LF64SCX (SunClixTM connectors)
Max. voltage in open circuit 1500 Vdc
PV input cable entries Cable plate membrane, IP 65 - Accepts 1 or 2 PV string cables Ø 4 mm² to Ø 10 mm² each
Maximum current per input (Inc) @ STC Protect / String Monitoring: 46.2 AString Monitoring High Power: 50.0 A
DC output
Rated current of the assembly (InA) @ STC according to IEC 61439-2
Protect / String Monitoring: 370 AString Monitoring High Power: 400 A
Rated current of the assembly (InA) @ 50°C according to IEC 61439-2
Protect / String Monitoring: 310 AString Monitoring High Power: 360 A
Temperature derating (rated current) Protect / String Monitoring: Derating 3.9% per °K over 50°C operating temperatureString Monitoring High Power: Derating 3.2% per °K over 50°C operating temperature
DC output cable entries Cable glands M40, Ø 22 mm to Ø 32 mm, IP 68
DC output cables 2 x 300 mm² or 1 x 400 mm² per polarity
Electrical protection (max)
Number of protected circuitsUp to 16 with the pack of 32 connection sets PVSAB15LF32SCX (SunClixTM connectors)Up to 24 with the pack of 48 connection sets PVSAB15LF48SCX (SunClixTM connectors)Up to 32 with the pack of 64 connection sets PVSAB15LF64SCX (SunClixTM connectors)
Type of protection Use external 1500Vdc gPV fuses, protection on both polarities. Fuse supplies available separately
Fuse installation In- Line fuse
Overvoltage protection Surge arresters 1500Vdc, type 2, (standard) Iscpv 10kA, Imax 40kA, In 10kA, Up< 5kV or type 1+2 (option)
Environmental specifications (in operation)
Operating temperature range -40°C to 60°C (1)
Relative humidity Up to 100%, condensation possible
Altitude Up to 4000 m (2)
Mechanical specifications
Dimensions and weight
Dimensions (H x W x D) (mm) 747 x 536 x 300
Weight (kg) 45kg
Enclosure
Material Fully insulated enclosure, electrical insulation class 2 (fibreglass reinforced polyester)
Fire resistance level Halogen-free, self extinguishing. Fire retardant. Tested to the glow wire at 960°C
Protection grade IP 65, IK 10
Installation
Installation modes On a chair / Mounted on module racks with brackets
Installation accessories Canopy for Array Box In-Line
Monitoring and Communication (String Monitoring and String Monitoring High Power versions only)
Number of monitoring channels 8 (1 channel per group of 2, 3 or 4 protected circuits depending on the pack of connection sets used)
PV string current scale and accuracy 0 to 60 A, accuracy +/-0.18% @25°C, +/- 0.8% @ the maximum operating temperature
PV string voltage scale and accuracy 0 to 1500 V, accuracy +/- 0.5% full scale
Internal temperature -40°C to 120°C, accuracy +/- 3°C
Digital Inputs 3 Digital inputs: Monitoring of overvoltage protection and main switch, 1 spare
External temperature / Irradiance sensors Possible using the optional weather sensor monitoring kit PVSAB15WB001. 1 input for temperature, 2 inputs for irradiance
Monitoring power supply PV powered, no need for external power supply cable
Communication Modbus RTU / RS 485 link (3)
Communication line overvoltage protection Included on communication board
Compliance IEC / EN 61439-1 and IEC / EN 61439-2
CE marking
Footnotes(1) See derating curves provided in the product documentation(2) Derating from 2000 m(3) PC software available for Modbus network settings. The PC can be connected at any network node.
