Solar Product

Our Product Range

Sumai Renewable was established with the mission of bringing to the market superior technical and design solutions for the Solar Industry. The core focus was on assembling customized and efficient panels for projects of all sizes and uses. Over the years, integration into a product line customized for non-solar solutions like electrical was a natural choice due to possibility of shared resources and stakeholder channels. Consequently, today Sumai has come to establish brawny product lines in both solar and electrical solutions.

"DC Distribution Box (DCDB)/
Array Junction Box (AJB)"

DC Distribution Box (DCDB)/
Array Junction Box (AJB)

Sumai offers bespoke AJB/DCDB solutions for Roof top and large-scale PV project alike, for indoor as well as outdoor wall mount, also adaptable to harsh environment.

We can provide all of the following sub-components based on the unique requirement of each site:

  • DC Fuse
  • DC surge protection device
  • DC circuit breaker or DC isolator switch
  • IP 65 waterproof, anti-dust and anti-ultraviolet design
  • Polycarbonate, FRP or cold rolled steel enclosure

Each and every sub-component used is tested/certified as per Nation/international standard and the final product offerings go through strict tests for high/low temperature. The internal wiring is simplified and convenient to ensure easy installation.

Product Sub-category:

  • Residential Roof-Top DCDB
  • Office/Commercial Solar DCDB
  • Industrial Solar DCDB
  • Ground-Mount Project DCDB
Technical parameters
Description
  • System Max. DC Voltage
  • Max Input Current for each string
  • Max Input string
  • Max Output switch current rating
  • Number of Inverter MPPT
  • Number of Output strings
Electrical Parameter
  • 1000 to 1500V
  • 15  to 30 Amp
  • 1 to 24
  • 16A/32 A/64A/100A
  • 1/ 2 /3/4/5/6/
  • Up to 15
Lightning Protection
Description
  • Category of test
  • Nominal discharge current
  • Max discharge current
  • Voltage protection level
  • Max operating Voltage
  • Number of Poles
  • Structure characteristic
Electrical Parameter
  • Type-2 protection
  • 20kA
  • 40kA
  • 3.8kV
  • 1000 to 1500V
  • 3P
  • Plug-push modulea
SYSTEM
Description
  • Enclosure protection grade
  • Output switch
  • Output connectors
  • PV DC fuse
  • PV Surge protector
  • Enclosure Material
  • Mounting  method
  • Operating Temperature
  • Permissible relative humidity
  • Enclosure size
Electrical Parameter
  • IP 65/67/68
  • DC isolator (optional) breaker(Optional)
  • MC4/PG Glands
  • Standard
  • Standard
  • Polycarbonate /FRP/ Cold rolled steel
  • Wall mounting / frame mounting
  • -25 to +55°C
  • 0-95% , no condensation
  • Standard
"AC Distribution Box (ACDB)"

AC Distribution Box (ACDB)

Sumai offers wide range and customized ACDBs for all kind of need varying from KW to MW range, with internal electrical design to ensure saving of optimal amount of cost and cables. The following sub-components assist in to achieve this better:
  • AC surge protection device
  • AC circuit breaker
  • Multifunction meter
  • Inbuilt with NVR setup
  • CBCT & earth fault relay
Product Sub-category:
  • Residential Roof-Top ACDB
  • Office/Commercial Solar ACDB
  • Industrial Solar ACDB
  • Ground-Mount Project ACDB & LT Panel
  • AC Distribution Panel
Technical parameters
Description
  • System Max. AC Voltage
  • Max Input Current for each string
  • Max Input connection
  • Max Output switch current rating
  • Rated working AC voltage
Electrical Parameter
  • 690V
  • 0-250 Amp
  • 1 to 15
  • 0-3200 Amp
  • 480V
Lightning Protection
Description
  • Category of test
  • Nominal discharge current (8/20us)
  • Max discharge current (8/20us)
  • Voltage protection level
Electrical Parameter
  • Type-2 protection
  • 20kA
  • 40kA
  • 3.2Kv
SYSTEM
Description
  • Enclosure protection grade
  • Input/ Output switch
  • MFM
  • PV Surge protector
  • Enclosure Material
  • Mounting  method
  • Operating Temperature
  • Permissible relative humidity
  • Enclosure size
Electrical Parameter
  • IP 54/65
  • MCB/MCCB/ACB
  • Standard
  • Standard
  • Polycarbonate /FRP/ Cold rolled steel
  • Wall mounting / floor  mounting
  • -25 to +55°C
  • 0-95% , no condensation
  • Standard
"ACDB -800VAC​"

ACDB -800VAC

The inverters used in the photovoltaic systems at present are designed to operate in coordination with 600 or 690V AC distribution systems. Increasing the voltage values and reducing the losses is the approach used to create more efficient systems.

To keep up with these trends, Sumai has developed a new range of 800V LT Panels, which are specially designed keeping in mind the protection and distribution of electric networks from the new inverters with operational voltage level ratings of 800V AC. This ensures further increase in energy efficiency, limiting of involved rated currents and reduction in switchgear size, resulting in decreased installation time and costs.

Technical parameters
Description
  • System Max. AC Voltage
  • Max Input connection
  • Max Output switch current rating
  • Rated operational  AC voltage
  • Release
  • Rated Insulation Voltage
  • Rated Short Circuit Capacity (kA)
  • NVR protection
  • MFM
  • Aux. transformer
  • Bus Bar
Electrical Parameter
  • 800V
  • 1 to 15
  • 0-3200 Amp
  • 800V
  • Thermal Magnetic & Microprocessor
  • 1250V
  • 36 to  65KA
  • In-built
  • 230V AC , CL-0.5,
  • 800/415VAC
  • Aluminum /Copper
SYSTEM
Description
  • Enclosure protection grade
  • Enclosure type
  • Enclosure Material
  • Mounting  method
  • Operating Temperature
  • Permissible relative humidity
  • Standard
Electrical Parameter
  • IP 54/65
  • Indoor/Outdoor
  • CRCA/FRP
  •  floor  mounting
  • -25 to +55°C
  • 0-95% , no condensation
  • 60947-2, IEC 60947-2 and EN 60947-2
"NVR Panels"

No Volt Relay (NVR) Panel

Sumai provides cent percent efficient NVR panels to safeguard inverters in case of power failures or protect them from single phase, over voltage or under voltage. The Relays are designed to not reset again until the power phases become healthy again. The NVR panels are complete with:

  • Special relay combination (SPP)
  • Contactor & MCB/MCCB
  • A/M Selector Switch

Sumai provides NVR Panels for all types of applications like Solar Rooftop Power Plants, Solar Ground Mount Power Plants as well as Residential Solar Power Plants.

Technical parameters
Description
  • System Max. AC Voltage
  • Input Contactors
  • Contactor Coil Voltage
  • SPP (Single Phase preventer)
  • Rated working AC voltage
  • Control MCB for SPP
  • Solar project capacity
Electrical Parameter
  • 690V
  • 4P, 32 to 800 Amp
  • 230V to 415V AC
  • O/V, U/V & Phase failure protection
  • 480V
  • SP , 6Amp (For testing )
  • 10 KW TO 1 MW
SYSTEM
Description
  • Enclosure protection grade
  • Enclosure Material
  • Mounting  method
  • Operating Temperature
  • Permissible relative humidity
  • Enclosure size
Electrical Parameter
  • IP 54/65
  • Polycarbonate /FRP/ CRCA
  • Wall mounting / floor  mounting
  • -25 to +55°C
  • 0-95% , no condensation
  • Standard (customized)
"METER PANEL"

METER PANEL

Sumai  assembles easily installable indoor and outdoor type Meter panels for domestic and industrial purposes for measurement of power used up and the rate of power consumption. Sumai Meter panels are complete with following features:

  • 14G/16G CRCA steel enclosures
  • IP 54 degree protection
  • Dust and vermin proof
  • Cross-linked foam gaskets
Technical parameters
Description
  • System Max. AC Voltage
  • Lockable Compartment for Solar Energy Meter compartment
  • Cable termination provision
  • Lockable CT compartment
  • Internal CT Wiring
  • MCB Energy meter
  • CT short terminal
Electrical Parameter
  • 690V
  • 1 OR 2
  • ALU. Bus type
  •  ALU. Bus bar with provision for CT
  • 1.5 SQ MM CU. cable
  • SP ,6 Amp OR AC fuse
  • Optional
Enclosure
Description
  • Enclosure protection grade
  • Enclosure Material
  • Gasket
  • Mounting  method
  • Operating Temperature
  • Permissible relative humidity
  • Enclosure size
  • Cable Energy
Electrical Parameter
  • IP 54/65
  • CRCA /FRP
  • Cross-linked foam/EPDM
  • Wall mounting / floor  mounting
  • -25 to +55°C
  • 0-95% , no condensation
  • Standard (customized)
  • Top OR Bottom
"String Monitoring Unit (SMU)"

String Monitoring Unit (SMU)

The SMUs offered by Sumai are designed to ensure increase in overall return on instrument for PV system installation, while increasing safety for O&M employees, especially for MW scale projects. The following sub-components ensure accurate measurement of various factors to better understand the system performance:

  • DC Fuse
  • DC shunts (Hall effect sensors)
  • String card
  • Connectivity to PLC/SCADA via MODBUS/RTU
Technical parameters
input dc
Description
  • Max. input  voltage
  • Maximum current per string
  • Number of measuring channels
  • Nominal string fuse current
  • No. of DC input(+ve and –ve)
  • String cable connection
  • Cable entry
  • DC switch rating
  • Monitoring devise power source
  • Surge protection
Electrical Parameter
  • 1000 to 1500VDC
  • 30Amp
  • 8/10/16/24
  • Optional up to 30A(10/12/15/20/25/30)
  • 6/10/16/24
  • Polyamide cable gland/MC4 Connector
  • Bottom
  • 160/200/320Amp
  • Auxiliary power supply/I Built(AC-DC Converter)
  • Type-2
output dc
Description
  • Max .output current
  • DC output cable size
  • DC output cable  exit
  • Number of DC outputs
  • Monitoring Devise
  • Measuring parameters
  • Type of monitoring
  • On board temperature measuring range
  • Communication
  • Protocols
  • MODBUS ID
  • Data recording
  • Digital Ports
  • Analog Ports
  • Voltage measurement accuracy
  • Current  measurement accuracy
Electrical Parameter
  • Up to 320
  •  Up to 300amp
  • Polyamide gland/brass
  • 2
  • Input current, system voltage, internal temperature
  • Shunt
  • 0-120c
  • Modbus RS485 2 Wire 2 x 2c twisted pair shielded 0.5 SQMM RS485 standard
  • Modbus –RTU: 19.200bps(default),range : 9.600bps up to 115.200bps
  • Defined by DIP
  • PLC/SCADA
  • 2
  • 1(+/-)0.2%
  • <1%
general data
Description
  • Encloser Material
  • Degree of protection
  • Mounting type
  • Operating temperature
  • Relative humidity
Electrical Parameter
  • Polycarbonate /FRP
  • IP 65
  • Wall mounted/structure mounted
  • -10c to +60c
  • 5% up to 95%

Sumai Edge

We provide product solutions that ensure highest safety for uninterrupted power generation and for maintenance staff. Our solutions are available for complete range of sub-components to deal with all types of natural calamities and mechanical breakdown with least cost effects. All our product configurations and sub-component selection is done so as to provide high reliability, adaptability and flexibility. Each and every sub-component used is tested/certified as per Nation/international standard and the final product offerings go through strict tests for high/low temperature. The internal wiring is simplified and convenient to ensure easy installation.

A separate electrical & solar product range ensures each project is given its due attention keeping in mind the relevant need and separate experts and product design teams are kept in the loop from client request-for-quote to tech-spec sheet creation to final assembling. Such approach leaves no space for any kind of over-sight in client requirement, ensuring client satisfaction project after project.