What is this 12-in-12-out Solar DCDB used for?

This Solar DCDB is used to receive 12 incoming PV string connection and route it through 12 protected DC output line for safe connection between the solar array and inverter.

What protection devices are included in this DCDB configuration?

This variant includes DC side protection devices to help manage overcurrent, isolation and surge protection requirements on the DC side of the solar installation.

Is this Solar DCDB suitable for outdoor rooftop installation?

Yes. The page configuration is described as an IP65 weatherproof enclosure, which makes it suitable for outdoor solar applications when installed with proper cable sealing and mounting practices.

When should I choose this DCDB variant?

Choose this variant when your solar project needs a 12-input and 12-output DC protection box with the listed protection components and enclosure style for the inverter-side DC connection.

Power Generation

Solar DCDB

Guard Series

500V DCDB

DCDB 1in 1out

DCDB TB-MCB-SPD

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

DCDB FUSE-TB-MOV

DCDB 2in 2out

DCDB TB-MCB-SPD

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

fusemcbspd

DCDB FUSE-TB-MOV

1000V DCDB

1in 1out

DCDB TB-MCB-SPD

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

DCDB FUSE-TB-MOV

2in 2out

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

3in 3out

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

4in 4out

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

5in 5out

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

6in 6out

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

7in 7out

DCDB FUSE-MCB-SPD

8in 8out

DCDB FUSE-MCB-SPD

9in 9out

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

10in 10out

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

12in 12out

10in 10out

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

14in 14out

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

16in 16out

DCDB FUSE-MCB-SPD

DCDB FUSE-TB-SPD

DCDB FUSE-MCB-MOV

18in 18out

DCDB FUSE-MCB-SPD

DCDB FUSE-MCB-MOV

Shield+ Series

500V DCDB

DCDB 1in 1out

DCDB TB-MCB-SPD

Solar ACDB

Guard Series

1-Phase ACDB

ACDB 1in 1out

ACDB TB-MCB-SPD

Solar Combiner Boxes

Solar Combiner Boxes

Solar AC Combiner Boxes

Solar AC Combiner Boxes

Solar Structures

Solar Structures

Solar Charge Controller

Solar Charge Controller

Solar PCU

Solar PCU

Back

Solar DCDB 12 In 12 Out | IP65 Solar DC Distribution Box

GEESYS Solar DCDB 12 In 12 Out is built for photovoltaic systems that need dependable DC-side protection, compact string isolation, and weather-resistant outdoor performance. This Solar DC Distribution Box helps protect and organize the DC path between solar panel strings and the inverter.

Product Details
Brand:	GEESYS	Type:	Solar DCDB
Series:	Guard Shield	Dispatch:	Between 10-15 Days
Model:	GD1020202C	Price:	INR 2300/-*

GEESYS Solar DCDB 12 In 12 Out is a compact DC distribution and protection enclosure used to connect twelve PV strings to twelve inverter-side outputs with coordinated DC protection. It supports cleaner cable routing, safer isolation, and dependable control of DC-side fault risks in solar power systems.

This IP65 Solar DCDB is suitable for rooftop solar systems, commercial buildings, and industrial solar projects where environmental protection, reliable enclosure construction, and organized DC termination are important. It is commonly used as a solar protection box or PV combiner box in installations that need twelve input and twelve output architecture.

Key Features

Twelve input and twelve output DC architecture for compact solar layouts
Integrated fuse, MCB, SPD, and diode configuration for coordinated protection
IP65 weatherproof enclosure suitable for outdoor solar environments
Supports safer cable routing, isolation, and DC-side fault management
Wall-mount construction for practical installation and maintenance access
Built for rooftop, commercial, and industrial solar applications
Customizable configuration support based on project requirement
Designed for reliable long-term operation in Chennai, Tamil Nadu, and India site conditions

Technical Specifications

Solar DC Distribution Boxes

Model	GPRO-D5X	GPRO-D10X
Maximum Voltage in open Circuit	1000V	1500V

Input

No of DC inputs

1-52

Maximum Input Fuse* Rating, A *	6/10/12/15/20/30
Max Input Current in short Circuit
Max. input current in short circuit at STC
Maximum string current per fuse holder with all string fuse*	Reduction factor 0.55
Conductor Size , Sq.mm	4 — 4-10 Sq.mm

Output

No of DC Outputs 1	150 Sq.	150 Sq.
Maximum DC Current, A *	Upto 630A	Upto 630A
Isolator/MCB A*	4 — 100/250/315/400/500/630	4 —100/250/315/400/500/630
Conductor Size, Sq.mm	*4 —193 to 3012*	*4 —193 to 3012*
Conductor Size, Sq.mm	4 — 10-300 Sq.mm	4 — 10-300 Sq.mm
Cable gland clamping range,mm	17-50

Protection

DC inputs overcurrent protection

Protection on both polarities, gPV fuses, size 10 x 38 mm, max. rating 30 A (fuses not provided with product)

Surge Protection Device (SPD)*

<<=1000V DC, Class C/Class B/ Class B+C

1500V DC, Class C/Class B/ Class B+C

Electric shock protection	Class II equipment
320V AC,SPD	320V AC,40 KA,type-2,Iscpv 100A
48V DC,SPD	48V DC,40 KA,type-2,Iscpv 100A

String Monitoring Unit

Max Current per String	8-52 Channel, 50A, Hall Effect Based CT
Voltage Measurement	1 Channel (1000V DC Maximum) , Accuracy: 1.5FSD
Internal Temperature Measurement	0 - 100Â°C, Accuracy Â± 2Â°C for full scales
Data communication (Isolated)	RS 485 Modbus RTU Protocol, 2.5KV Isolation, Half Duplex
I/O's;	DI:2, DO:1; AI:2; Temp Input: 1 RTD PT100 3 Wire
Auxiliary Power Supply	230V AC, 50Hz, 1-Ph/Â±15V DC, lA

General

Ingress Protection	IP66/65
Enclosure Type	*PS/PC,Transparent Top cover**
Wall mounting	Yes
Bus Bar*	Yes
Operating conditions Temp :	-20 to +55 Deg. C , RH : 0 — 95% non cond
Type of Protections	Short-Circuit,Surge
International standards followed	IEC 60364
Design Life	25 years +

Applications

Solar PV Power Plants

Downloads

Catalogue	Format	Size	Date
Solar BoS Catalogue	PDF	2.1MB	21Jun2019
Solar DCDB	PDF	2.1 MB	21Jun2019
User Guide
Warranty Terms & Conditions	PDF	326.2 kB	21Jun2019
Certification
Solar COMBO Test Report	PDF	1.2 MB	21Jun2019

FAQs

1. What is a solar DCDB?

A solar DCDB, or DC distribution box, combines and protects the DC output from solar strings before that power reaches the inverter.

2. What is the difference between ACDB and DCDB?

A DCDB is installed on the DC side between the solar array and inverter, while an ACDB is installed on the AC side after the inverter to distribute and protect inverter output.

3. Why is a solar DCDB important?

It helps isolate faults, protects strings from overcurrent and surge conditions, and makes the solar plant safer and easier to service.

4. What protections are normally included in a DCDB?

A typical DCDB can include fuse links, DC MCBs or MCCBs, surge protection devices, isolators, terminals, and busbar arrangements depending on plant size and inverter requirement.

5. How do I choose the right DCDB for my system?

The selection depends on inverter DC voltage, number of strings, short circuit current, type of inverter, enclosure location, and the protections specified for the project.

6. Can one DCDB be used for residential and commercial projects?

Yes, but the rating, number of strings, enclosure type, and protection configuration must be matched to the specific plant size and application.

7. What maintenance is required for a solar DCDB?

The panel should be checked for tight terminations, healthy surge protection devices, fuse continuity, clean enclosure condition, and safe isolation before service work.

8. Can GEESYS help with DCDB sizing and quotation?

Yes. Share plant capacity, inverter details, string count, system voltage, and installation environment, and GEESYS can recommend a suitable DCDB configuration.

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