Product Category
UHCCY solar connectors provide cable-to-cable, panel-mount, branch, fuse-integrated and diode-integrated connection solutions for photovoltaic DC systems. The range includes 1000V and 1500V platforms, selected higher-voltage configurations, and model-specific options for different conductor sizes and current requirements.
Product Range
Browse available models here, then use the comparison table below to compare family-level specifications.
UH-PC-MF01
UH-PC-MD01
UH-PC-PM01
UH-PC-MC01
UH-PC-TB01
UH-PC-YB01
UH-PC-MC04
UH-PC-MF02
UH-PC-PM02
UH-PC-MC05
UH-PC-MC02
UH-PC-YB02
Overview
UHCCY solar connectors provide reliable PV DC connections with 1000V, 1500V and selected high-voltage solutions for cable, panel and branch applications.
Solar connectors provide detachable electrical connections between photovoltaic modules, solar cables and DC-side equipment. Their role extends beyond simply joining two conductors: the connector system must maintain electrical contact, mechanical retention, insulation, environmental sealing and polarity control throughout installation and service.
UHCCY solar connectors are therefore organized as a product family rather than a single universal connector. Different platforms are selected according to system voltage, required current, conductor cross-section, cable outer diameter, installation location and connector architecture.
For complete cable assemblies, the connector should be selected together with the appropriate Solar Cable rather than choosing the connector based only on current rating.
The UHCCY range includes several connector architectures for different positions within a photovoltaic DC system.
Cable-to-cable solar connectors provide the standard detachable connection between PV cables and are available across several voltage, current and conductor configurations.
Panel-mount solar connectors provide a fixed connection point through an enclosure or equipment panel and are suitable for applications where the connector interface must be mechanically integrated into equipment.
Branch solar connectors combine or distribute PV circuits using predefined branch arrangements. The actual input/output configuration must be selected according to the specific branch model rather than assuming all Y- or multi-branch products are electrically identical.
Fuse-integrated solar connectors combine a PV connection interface with fuse protection in applications where an integrated configuration is appropriate.
Diode-integrated solar connectors incorporate a diode function into the connector assembly, with current-specific versions selected according to the intended circuit.
This architecture allows the category page to explain common selection logic while individual product pages retain exact dimensions, ratings and configuration-specific data.
A connector should never be selected from one headline specification alone.
For example, a nominal current value only has meaning when considered together with:
connector platform → contact design → conductor cross-section → cable outer diameter → system voltage → installation condition.
Across the UHCCY range, current-specific variants such as 30A, 45A, 50A and 60A are treated as distinct configurations rather than being collapsed into a generic “30–60A” specification.
Likewise, 2.5 mm², 4 mm², 6 mm² and 10 mm² cable configurations must be matched to the appropriate contact and cable sealing range.
For a more detailed explanation of the relationship between voltage, current and cable size, the existing solar connector specifications guide can provide the deeper technical layer while this category page remains focused on product selection.
PV connectors should not be treated as universally interchangeable simply because two products appear mechanically similar.
Current standards and manufacturer guidance emphasize using connector pairs evaluated as a defined mating system. UL 6703 specifically evaluates PV connectors with compatible mating parts, and its current scope states that mating parts are generally to be of the same brand unless manufacturers jointly submit a combination for evaluation.
UHCCY should therefore describe its products according to the UHCCY connector platform and approved mating pair, rather than making broad claims such as “universal compatible connector.”
“MC4” is not the generic technical name for every photovoltaic connector. It refers to Stäubli's Original MC4 product family.
Because the term has become widely used informally in the solar market, customers may still encounter searches or discussions using phrases such as “MC4 connector.” On UHCCY product and category pages, however, the correct generic terminology is Solar Connector or PV Connector.
UHCCY products should not be presented as Original MC4 products or as universally interchangeable with Stäubli connectors. Stäubli explicitly advises against cross-mating connectors from different manufacturers and states that it does not recognize third-party products advertised as MC4 compatible.
Key Advantages
1000V and 1500V solar connector platforms are available, with selected higher-voltage configurations for specific product families.
Individual connector variants are available for different current requirements rather than treating a wide current range as one interchangeable specification.
Applicable models support common photovoltaic conductor sizes including 2.5, 4, 6 and 10 mm², depending on connector platform and contact design.
The range includes cable-to-cable, panel-mount, branch, fuse-integrated and diode-integrated solar connector configurations.
Tin-plated copper contacts are the standard UHCCY configuration, with silver-plated copper available for selected requirements.
Connector configuration, cable compatibility, packaging and related assembly requirements can be coordinated for wholesale and OEM projects.
Model Selection
Compare the main family-level parameters, then open a model for its complete specifications and inquiry details.
| Model | Rated Voltage | Rated Current | Configuration | Cable Size | Contact Material |
|---|---|---|---|---|---|
| UH-PC-MC011000V Solar Connector for 2.5 – 6 mm² PV Cable – UH-PC-MC01 | 1000V DC | 30A ~ 50A | Inline connector | 2.5 ~ 6 mm² / 14 ~ 10 AWG | Tin-Plated Copper |
| UH-PC-MC02Compact 1000V Solar Connector for 2.5, 4 & 6 mm² PV Cable – UH-PC-MC02 | 1000V DC | 30A ~ 50A | Inline Connector | 2.5 ~ 6 mm² / 14 ~ 10 AWG | Tin-Plated Copper |
| UH-PC-PM011000V Panel-Mount Solar Connector – UH-PC-PM01 | 1000V DC | 30A | Inline Connector | 4 mm² / 12 AWG | Tin-Plated Copper |
| UH-PC-PM021500V Panel-Mount Solar Connector for 2.5, 4 & 6 mm² PV Cable – UH-PC-PM02 | 1500V DC | 30A ~ 50A | Inline Connector | 2.5 ~ 6 mm² / 14 ~ 10 AWG | Tin-Plated Copper |
| UH-PC-MC041500V High-Current Solar Connector up to 60A – UH-PC-MC04 | 1500V DC | 30A ~ 60A | Inline Connector | 2.5 ~ 16 mm² / 14 ~ 6 AWG | Tin-Plated Copper |
| UH-PC-MC052000V Solar Connector for High-Voltage PV Systems – UH-PC-MC05 | 2000V DC | 30A ~ 60A | Inline Connector | 2.5 ~ 16 mm² / 14 ~ 6 AWG | Tin-Plated Copper |
| UH-PC-TB011000V T-Branch Solar Connector – 2-to-1 to 6-to-1 – UH-PC-TB01 | 1000V DC | 30A | T-Branch Connector | 4 mm² / 12 AWG | Tin-Plated Copper |
| UH-PC-YB011000V Y-Branch Solar Connector – 2-to-1, 3-to-1 & 4-to-1 – UH-PC-YB01 | 1000V DC | 30A | Y-Branch Connector | 4 mm² / 12 AWG | Tin-Plated Copper |
| UH-PC-MF011000V Inline Fuse Solar Connector for 10 × 38 mm PV Fuse – UH-PC-MF01 | 1000V DC | Inline Connector | 4 mm² / 12 AWG | Tin-Plated Copper | |
| UH-PC-MF021500V Inline Fuse Solar Connector for 10 × 85 mm PV Fuse – UH-PC-MF02 | 1500V DC | Inline Connector | 4 mm² / 12 AWG | Tin-Plated Copper | |
| UH-PC-MD011000V Inline Solar Diode Connector for Reverse-Current Protection – UH-PC-MD01 | 1000V DC | 10A ~ 30A | Inline Connector | 4 mm² / 12 AWG | Tin-Plated Copper |
Technical Data
The specifications below describe the available UHCCY solar connector range. Exact ratings, cable dimensions, protection levels and certification status vary by model.
| Parameter | Available Range / Configuration |
|---|---|
| Product Type | Photovoltaic DC Connector |
| Rated Voltage | 1000V DC / 1500V DC / selected higher-voltage models |
| Rated Current | 30A / 45A / 50A / 60A, model dependent |
| Conductor Cross-Section | 2.5 / 4 / 6 / 10 mm², model dependent |
| Connector Architecture | Cable-to-Cable / Panel-Mount / Branch / Fuse / Diode |
| Contact Material | Copper |
| Standard Contact Plating | Tin-Plated Copper |
| Optional Contact Plating | Silver-Plated Copper, selected configurations |
| Connection Method | Crimp connection for applicable cable connectors |
| Cable Outer Diameter | Model dependent |
| Polarity | Positive / Negative mating pair |
| Ingress Protection | According to individual model specification |
| Operating Temperature | According to individual model specification |
| Applicable Connector Standard | IEC 62852 for applicable ≤1500V connector models |
| OEM Configuration | Available according to project requirements |
Selection Guide
Correct connector selection starts with the PV system rather than the connector appearance.
First identify what the connector needs to do.
Choose between:
For ordinary module and string wiring, a standard male/female connector pair is normally the starting point.
Confirm the maximum voltage that can occur in the PV string under the expected operating and environmental conditions.
The connector rated voltage must be suitable for that system voltage.
Do not substitute a lower-voltage connector into a higher-voltage PV architecture.
Connector current rating must be suitable for the current carried by the circuit.
For branch connectors, pay particular attention to the current after multiple strings are combined.
The connector, output cable and downstream equipment must all be appropriately rated.
Check both:
Cable conductor cross-section
and
Cable outer diameter
A connector that accepts the conductor electrically may still be unsuitable if the cable outer diameter does not match the sealing system.
Common-looking PV cables can have different insulation thicknesses and outer diameters.
Use the specified mating pair from the same connector system.
Do not assume that connectors from two manufacturers are compatible simply because they can physically plug together.
For existing PV systems, identify the original connector manufacturer and model before replacing or extending the connection.
Consider:
The relevant product ratings must match the actual application.
Connector contacts require consistent conductor preparation and crimping.
Use the specified crimping die and assembly tools for the selected connector and cable.
Incorrect stripping, crimping or sealing can compromise both electrical and environmental performance.
Use Cases
Connector assemblies support DC cable connections between PV strings, combiner equipment and inverter inputs.
Protection, connectivity and distribution components for photovoltaic arrays, string circuits and related solar DC systems.
Installation
Solar connectors should be installed using the cable, contact, crimping tool and connector components specified for the exact product family.
Cut and strip the solar cable according to the connector assembly requirements without damaging conductor strands.
Use a compatible crimping tool and die for the selected contact and conductor size. UHCCY installation tools are available through PV Connector Tools.
After crimping, inspect the contact position and mechanical retention before inserting it into the connector housing.
Ensure the contact reaches the intended locking position inside the housing before completing cable-gland assembly.
Tighten connector components according to the requirements of the specific model. Do not assume one torque value applies to every UHCCY solar connector.
Confirm that the cable outer diameter is within the connector sealing range.
Male and female connectors should be used as the approved mating pair from the same connector family.
Do not cross-mate UHCCY connectors with connectors from another manufacturer merely because the interfaces appear mechanically similar. Stäubli and current PV connector standards both highlight the safety and certification risks associated with cross-mating products from different connector systems.
PV DC circuits can remain energized whenever modules are exposed to light. Connectors should not be assembled, disconnected or serviced under load unless the specific system design and instructions explicitly permit the operation.
For a full assembly procedure, refer to the existing PV connector crimping guide and PV connector wiring guide.
Compliance
The principal international product standard for photovoltaic DC connectors is IEC 62852:2014+A1:2020 — Connectors for DC-application in photovoltaic systems — Safety requirements and tests.
The standard covers PV DC connectors with rated voltages up to 1,500 V DC and rated currents up to 125 A per contact within its scope.
PV connector installation should also be considered within the wider photovoltaic array design requirements of IEC 62548-1:2023+A1:2025, which covers DC array wiring and other PV array design requirements.
IEC TR 63225:2019 specifically addresses incompatibility issues involving photovoltaic DC connectors produced by different manufacturers and reinforces the importance of correct connector-system selection.
Depending on the destination market and individual UHCCY model, additional certification or qualification requirements may apply.
TÜV, UL, CE or other certification statements should only be shown for the exact connector models covered by the corresponding documentation.
Certification of one UHCCY MC4 connector should not automatically be interpreted as certification of every model within the complete product family.
Technical Resources
FAQ
Common technical and purchasing questions about this product category.
A solar connector is a purpose-designed electrical connector used for DC connections in photovoltaic systems. It typically connects PV modules, solar cables, branch circuits, equipment panels, combiner systems or inverter-side wiring.
The exact voltage, current, conductor size, sealing and mating requirements depend on the individual connector model.
Not exactly.
Solar connector or PV connector is the generic product category.
MC4 refers specifically to Stäubli's Original MC4 connector family. The term is frequently used informally in the market, but not every solar connector is an MC4 product.
The main difference is the maximum system voltage for which the connector platform is designed and evaluated.
A 1500V connector system may require different insulation distances, housing dimensions, contact structures or sealing arrangements than a 1000V product.
Voltage rating should therefore be verified from the exact connector specification rather than inferred from appearance.
Select the current rating together with the conductor cross-section, contact design, system voltage and installation conditions.
UHCCY provides current-specific connector variants such as 30A, 45A, 50A and 60A, depending on the product family.
Do not replace one current-specific contact configuration with another solely because the housings look similar.
More detailed electrical parameters are covered in the [solar connector specifications guide](https://uhccy.com/mc4-connector-specifications/).
Applicable models cover common photovoltaic conductor sizes including 2.5, 4, 6 and 10 mm².
Compatibility should be confirmed using both conductor cross-section and finished cable outer diameter.
For matching cable options, refer to [Solar Cable](https://uhccy.com/solar-cable/).
They should not be assumed interchangeable.
Connector systems from different manufacturers can differ in contact geometry, material, tolerances, sealing and mating interface even when they appear visually similar.
Use the approved mating pair specified for the connector system rather than relying on broad “compatible” claims. Stäubli explicitly advises against third-party cross-mating, while UL 6703 evaluates connectors with defined compatible mating parts.
Tin-plated copper is the standard UHCCY contact configuration.
Silver-plated copper may be available for selected requirements.
The appropriate plating option depends on the actual connector design and project requirements and should not be treated as an interchangeable specification without confirmation.
Crimp-type solar connectors should be assembled using a crimping tool and die suitable for the contact and conductor size.
General-purpose pliers do not provide controlled crimp geometry.
UHCCY provides compatible cable preparation and crimping equipment through [PV Connector Tools](https://uhccy.com/pv-connector-tools/).
The detailed procedure is covered in the [PV connector crimping guide](https://uhccy.com/how-to-crimp-mc4-connectors/).
Do not assume one ingress-protection rating applies to the complete category.
IP rating depends on the connector model, assembly condition, sealing components and proper cable compatibility.
The exact ingress-protection rating should therefore be taken from the individual product specification.
Contact UHCCY for model selection, technical specifications, OEM/ODM requirements, samples, and quotations.
