Professional PV Connector Manufacturer
TÜV Rheinland · UL · CE · RoHS — Product-Specific Certification & Compliance | info@treasol.com
DIRECT PV CONNECTOR MANUFACTURER SINCE 2009

PV Connectors & Custom Cable Assemblies for 1500 V Solar Projects

For distributors, EPC contractors, installers and solar manufacturers. We provide model-specific TÜV/UL-certified options, flexible trial orders and OEM support.

Standard Products: No Fixed MOQ
Custom Cable Assemblies: MOQ 200 Sets per Model
Samples in 5–7 Working Days, Production 15–20 Days

Specifications, MOQ, lead time and certifications vary by product model and order requirements.

Since 2009
PV Manufacturing Experience
Up to 1500 V DC
Model-Specific Solutions
IP68 Options
Outdoor PV Applications
No Fixed MOQ
For Standard Products
200 Sets
Custom Cable Assembly MOQ
15–20 Days
Production After Drawing Release

Specifications and certifications vary by product model. Applicable documents will be confirmed before quotation.

Why Global PV Buyers Choose Treasol

We focus on the details that reduce sourcing risk.

01

Model-Matched Documentation

We confirm the exact connector model, cable size, electrical rating and applicable certification before quotation, helping reduce supplier qualification and product-selection risks.

02

Controlled Manufacturing & Quality Inspection

Our production process covers incoming-material inspection, terminal processing, injection molding, assembly, electrical testing, mechanical testing and final inspection.

03

Flexible OEM & Cable Assembly Support

We support customized cable length, connector configuration, labeling, packaging and wiring harness assembly based on your approved drawing or project specifications.

Send Your Specifications

PV Connection Products for B2B & Project Supply

Select a product or send us your technical requirements for model matching, documentation and quotation.

Last updated: October 2026

Solar Cable connectorCN4U-C Solar Cable Connector

CN4U-C Solar Connector

Current70 A
Voltage1500 V
ProtectionIP68

View CN4U-C Solar Connector →

Solar Fuse ConnectorF4C-200-1085 Solar Fuse Connector

F4C-200-1085

Current1–30 A
Voltage1500 V
ProtectionIP68

View F4C-200-1085 →

Solar Fuse ConnectorF4C-201-1085 Solar Fuse Connector

F4C-201-1085

Current1–30 A
Voltage1500 V
ProtectionIP68

View F4C-201-1085 →

Solar Fuse ConnectorF4C-212-1038 Solar Fuse Connector

F4C-212-1038

Current1–30 A
Voltage1000 / 1100 / 600 V
ProtectionIP68

View F4C-212-1038 →

Solar Panel connectorCN4U-P Solar Panel Connector

CN4U-P

Current52 A
Voltage1500 V
ProtectionIP68

View CN4U-P →

PV Diode ConnectorD4A PV Diode Connector

D4A

Current1–8 A
Voltage1000 / 600 V
ProtectionIP68

View D4A →

PV Diode ConnectorD4B PV Diode Connector

D4B

Current30 A
Voltage1500 V
ProtectionIP67

View D4B →

Solar Branch connectorBranch Connector Series-1

Branch Connector Series-1

Current45 A
Voltage1000 V
ProtectionIP67

View Branch Connector Series-1 →

Solar Branch connectorBranch Connector Series-2

Branch Connector Series-2

Current60 A
Voltage1500 V
ProtectionIP68

View Branch Connector Series-2 →

PV Junction BoxJT3 PV Junction Box

JT3

Current5 A
Voltage1500 / 1000 V
ProtectionIP65

View JT3 →

PV Junction BoxJB2 PV Junction Box

JB2

Current5 A
Voltage1000 / 600 V
ProtectionIP65

View JB2 →

PV Junction BoxJT3-abcd PV Junction Box

JT3-abcd

Current32 A
Voltage1500 V
ProtectionIP68

View JT3-abcd →

MC4 is a registered trademark of Stäubli International AG. Treasol is an independent manufacturer and is not affiliated with or endorsed by Stäubli. For product safety and compliance, Treasol male and female connectors should be used as matched pairs. Do not cross-mate connectors from different manufacturers unless the exact combination has been approved under the applicable certification and project requirements.

Compare Our PV Connector Solutions

A quick reference to help you select the right product for your application.

Product Main Application Current Voltage IP Rating Key Feature
CN4U-CPV Cable ConnectionUp to 70 A1500 V DCIP68High-current connection
CN4U-PSolar Panel ConnectionUp to 52 A1500 V DCIP68Module-side connection
PV Fuse ConnectorPV Circuit ProtectionModel-specificUp to 1500 VIP68Overcurrent protection
PV Diode ConnectorPV ProtectionModel-specificUp to 1500 VIP68Reverse-current protection
Wiring HarnessCustomized PV ConnectionModel-specificModel-specificModel-specificOEM / custom assembly

Quality Control for Reliable PV Connections

Key electrical, mechanical and environmental checks are performed according to the applicable product specification and inspection plan.

Contact Resistance Testing

Verifies low-resistance electrical contact in PV connection systems.

Pull Force Testing

Confirms secure crimping and mechanical retention strength.

Insertion & Withdrawal Testing

Verifies consistent mating and unmating force.

Waterproof / IP Testing

Checks sealing performance for outdoor PV applications.

Insulation & Dimensional Inspection

Confirms electrical insulation and dimensional accuracy.

Testing is conducted according to the applicable product specification and inspection plan.

Watch Manufacturing Videos

Who We Supply

Treasol supports different customer types across the solar supply chain.

PV Distributors & Wholesalers

Standard PV connectors, fuse connectors, junction boxes and related accessories for local distribution and inventory supply.

EPC Contractors & Installers

Project-matched connectors and cable assemblies based on voltage, current, cable size and installation requirements.

Solar Module Manufacturers

Panel connectors, JT3 junction boxes and customized module-side connection solutions.

OEM & Solar Equipment Manufacturers

Customized wiring harnesses, cable lengths, labels and packaging based on approved drawings.

PV Connector Certifications & Compliance

Certification and compliance documentation is available for applicable products to support international PV projects and customer qualification processes. See the PV connector and solar cable standards reference for the scope each standard covers.

TÜV Rheinland

PV connector certification to applicable IEC 62852 / EN 50521 requirements.

UL Listed

UL 6703 certification for applicable photovoltaic connectors and junction boxes.

CE Marking

Applicable European conformity requirements for relevant products.

RoHS Compliant

Restriction of Hazardous Substances compliance for applicable products.

Request Certificates & Datasheets

From Product Selection to PV Connector Supply

A clear four-step workflow for B2B solar customers.

Step 1 — Send Your Requirements

Share the connector type, cable size, voltage/current, quantity, certification requirement or drawing.

Step 2 — Model Matching & Quotation

We recommend the suitable model and provide the applicable datasheet, certification information, MOQ, lead time and quotation.

Step 3 — Sample & Approval

Samples can be arranged for compatibility, assembly and performance evaluation before mass production.

Step 4 — Production & Delivery

Production is arranged according to the approved model, drawing, labeling, packaging and delivery requirements.

Frequently Asked Questions About PV Connectors

Key questions before placing a PV connector order.

What is the MOQ?+

Standard connector models carry no fixed MOQ. Build-to-order cable assemblies start at 200 sets per model for a repeat configuration and 500 sets for a new drawing, because tooling, cable scheduling and test fixture setup are fixed costs that have to be spread across the run. Sample orders of 1-5 sets are built before the production run and credited against it.

What is the production lead time?+

Standard connector models ship from stock. Build-to-order assemblies follow one schedule: samples in 5-7 working days for a repeat configuration and 7-12 working days for a new drawing, then 15-20 days of production after drawing release, or 20-30 days after sample approval where the design is new or needs overmold tooling. Freight and any customer inspection add to the door-to-door time.

Can I request samples?+

Yes. Samples are available for evaluation. Sample availability, cost and shipping will be confirmed according to the model and destination.

Can you provide certificates and datasheets?+

Yes. We provide the applicable datasheet and certification information for the specific model quoted. Certification scope varies by product.

Can connectors from different manufacturers be mixed?+

For safety and compliance, connectors should normally be used as matched male and female pairs from the same manufacturer. Cross-mating should only be considered when the exact combination is approved under the applicable project and certification requirements. The full assessment procedure is set out in our guide to PV connector cross-mating and intermateability.

Can you manufacture custom PV cable assemblies?+

Yes. Please provide the cable size, cable length, connector configuration, labeling, quantity and drawing if available. Our team will evaluate the specification and recommend a suitable solution.

Get the Correct PV Connector Recommendation

Share your cable size, voltage/current, quantity and required certification. We will reply with the recommended model, datasheet, applicable certification information and quotation.

What you can receive:

  • Recommended product model
  • Datasheet
  • Applicable certification information
  • MOQ & lead time
  • OEM options

Contact the PV connector team

Send us the parameters above and our engineering team will confirm the right connector and the certification that applies. We normally respond within 24 hours.

Email: info@treasol.com

WhatsApp: +86 186 8861 9157

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