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PV combiner box

3 Strings 3 in 1 out Ac 380V 125A solar pv combiner box

Technical Parameters

3 Strings 3 in 1 out Ac 380V 125A solar pv combiner box
Protection level
Grid-connected voltage
Maximum current
3 Strings
1 Strings
working temperature
-25 to+60 ° C
Structure characteristic
Plug-push module
Installation method
Wall mourning type

Product name:3 Strings 3 in 1 out Ac 380V 125A solar pv combiner box

Material:Stainless steel or Iron shell


Rated current:125A

Number of AC Inputs:3

Number of AC Outputs:1

Protection Level:IP65

Application:Solar Power System

Installation method:wall mounting type

The 3 Strings 3 in 1 out AC pv combiner box can meet long-term outdoor use. The box structure is moisture-proof, UV resistant, anti-aging, and easy to dissipate heat. All components are of domestic/foreign well-known brands, have the certification of authoritative institutions, and have complete qualifications. The incoming and outgoing circuit breakers are installed vertically in the positive direction and laid flat on the box. The wiring is one-to-one corresponding to avoid wrong wiring; The main road is connected by red copper bars, and the surface of the copper bars is treated by a tin plating process that is corrosion and oxidation resistant; Each phase line is marked with a common color in the industry, which is clear and eye-catching; Optional intelligent monitoring system (system voltage, trunk current, switch status, lightning protection status); Applicable to various voltage levels in the industry: 380Vac, 480Vac, 540Vac.

Advantages of photovoltaic combiner box:
1. The photovoltaic combiner box improves the safety of solar panels and the entire photovoltaic power plant.
2. Photovoltaic combiner box, also known as DC distribution board, as a plug and play solution, is factory assembled with monitoring equipment, fuses, surge protection devices, and isolation switches.
3. Different shell sizes can flexibly cover a range of up to 32 strings.

Technical Data sheet

Product model


Number of inverter input channels

3 string (customizable)

Total AC output paths

1 string

Confluence requirements

Three-phase confluence

System voltage


Branch switch capacity


Circuit breaker brand


Protection function

Short circuit protection

overload protection

Lightning protection

Lightning protection against failure

Environmental suitability

Temperature and humidity

Operating temperature: - 25 to+60 ° C

Storage temperature: VO to+7 (FC)

Humidity: 0-90% without condensation frost

Places without corrosive and oily gas

Use altitude


Salt fog resistance

Standard salt spray test for 336 hours

Safety regulations

Copper bar

Red copper bar (tin plating process)

safety protection

PVC protective plate

Electrical clearance

> 14mm

Creepage distance

> 25mm

insulation resistance


Insulation voltage

AC3000V, IM IN

General parameters

Cabinet material

Stainless steel or Iron shell

Protection level

Outdoor IP65

Box type

Single door distribution box

Installation method

Wall mounted/floor mounted (customizable)

Box size (length * width * height)


Characteristics of photovoltaic combiner box:
1. Factory assembled combiner box solution, suitable for all residential, commercial, and utility scale applications, using single or up to 32 strings of 1000V and 1500VDC; Monitoring is optional.
2. The combiner box adopts Gemini thermoplastic outdoor box, which has excellent mechanical strength.
3. Due to its mechanical properties, it can prevent dust, sea or strong water columns, chemicals, and strong ultraviolet rays: IP66, IK10, and GWT 750 ° C.
4. Electrical characteristics: Double insulation (Class II), Ui/Ue: 1000V DC/1500V DC.
5. According to on-site conditions, the Gemini casing can be installed in a floor or wall mounted manner.



Q1:.What is working time?
A:08:30-17:00 (GMT+8 Beijing), from Monday to Saturday.
24 Hours customerservice
For any query or problem , please contact us :
Moble ( 0086-13356127116)
Q2: Will my drawing be safe after you get it?
A:Yes, we will not release your design to third party unless with your permission. And we can sign the NDA before you send the drawing.
Q3: What is the MOQ?
A: Usually we don't set MOQ, but the more, the cheaper. Besides, we are happy to make prototype or sample for clients to ensure quality standard.
Q4:Whether some samples can be provided?
A: Yes, We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q5: What is your terms of payment?
A: T/T 50% as deposit, and 50% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q6: How about your delivery time?
A: Generally, it will take 5-7 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order