CN4U-P Solar Panel Connector
Solar Panel connectorCN4U-P is a high-performance solar panel connector designed for reliable photovoltaic (PV) module co...
View DetailsSolar PV Connectors
Last updated: October 2026
MC4-compatible solar DC connectors engineered for photovoltaic systems, providing reliable, weatherproof interconnections between solar panels, cables and junction boxes.
A solar PV connector is the intermateable, touch-safe plug pair that carries DC current from a module string to the cable run. The category covers the whole DC connection chain: the module-side pair (CN4U-P), the cable-side pair (CN4U-C), Y/T branch connectors for paralleling strings, and mid-line fuse and diode connectors that sit inside the string itself.
Every connector listed here is built to the same construction: a tin-plated copper contact in a PPE/PA66 housing, a double-fixed retention that keeps the contact from backing out under thermal cycling, and a silicone seal for the mated interface. Rated values run to 1500 V DC and 70 A with contact resistance held below 0.5 mΩ, and bodies are rated IP67 to IP68 for the mated condition.
Showing 4 products in this category
CN4U-C Solar Cable Connector
Solar Cable connectorCN4U-C is a high-current solar cable connector designed for reliable photovoltaic (PV) system connec...
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Branch Connector Series-2
Solar Branch connectorBranch Connector Series-2 is a 1500 V solar branch connector designed for combining and distributing...
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Branch Connector Series-1
Solar Branch connectorBranch Connector Series-1 is a 1000 V solar branch connector designed for combining and distributing...
View DetailsSpecification comparison
| Model | Rated voltage | Rated current | Protection | Contact resistance | Conductor size |
|---|---|---|---|---|---|
| CN4U-P Solar Panel Connector | 1500 V (TUV) 1500 V (UL) | 52 A Max | IP68 | <0.5 mΩ | — |
| CN4U-C Solar Cable Connector | 1500 V (TUV) 1500 V (UL) | 70 A Max | IP 68 | <0.5 mΩ | 14/12/10/8/6AWG 2.5/4.0/6.0/10/16 mm² |
| Branch Connector Series-2 | 1500 V (TUV) 1500 V (UL) | OUTPUT Max 60 A | IP 68 | <0.5 mΩ | — |
| Branch Connector Series-1 | 1000 V (TUV) 1000 V (UL) | OUTPUT Max 45 A | IP 67 | <0.5 mΩ | — |
Values are the mated-pair ratings from our published datasheets. Where a field is blank, that variant does not specify it — ask us and we will confirm against the drawing for your configuration.
Frequently asked questions
What is the difference between the module connector and the cable connector?
The module connector (CN4U-P) is the half that stays with the panel or the panel lead; the cable connector (CN4U-C) terminates the field cable. They share the same mating interface and are ordered as matching pairs — the pair rating, not either half alone, is what the 1500 V DC and 70 A figures apply to.
Which standard do PV connectors have to meet?
IEC 62852 is the safety standard for connectors for DC application in photovoltaic systems; UL 6703 covers the equivalent North American requirements. Both test the mated pair as a system — contact resistance, temperature rise, ingress protection, and pull-out force are measured on the pair, which is why mixing halves from different manufacturers invalidates the rating.
Can I mix Treasol connectors with other brands?
The housing geometry follows the MC4-compatible interface, so the parts mate mechanically. Whether the pair is safe to use is a separate question: the certified rating only covers a tested pair. Our cross-mating guide sets out what to check before mixing brands on a live string.