DC Connector for Solar PV Systems
The DC connector series is a dedicated photovoltaic connector rated 17A–30A at 1000V DC (standard) and 1500V DC (high-voltage). IP67 waterproof protection with ≤0.5mΩ contact resistance. Available in φ4mm pin system, compatible with 1.5–6mm² (16–10AWG) PV cables. UL94-V0 flame-retardant housing, -40℃ to +90℃ operating range. For solar PV arrays, combiner boxes, inverter connections, and battery storage systems.
Standard: IEC 62852 / UL 6703
Rated Current: 17A (1.5mm²), 22A (2.5mm²), 30A (4mm², 6mm²)
Rated Voltage: 1000V DC / 1500V DC
Protection Rating: IP67 (mated)
Contact Resistance: ≤0.5mΩ
Connector System: φ4mm
Flame Class: UL94-V0
Applications: Solar PV systems, combiner boxes, inverter DC inputs, battery storage, DC distribution
Product Information
Technical Data
| Parameter | DC Connector (1000V) | DC Connector (1500V) |
|---|---|---|
| Connector System | φ4mm | |
| Rated Voltage | 1000V DC | 1500V DC |
| Rated Current | 17A (1.5mm²/16AWG), 22A (2.5mm²/14AWG), 30A (4mm²/12AWG, 6mm²/10AWG) | |
| Test Voltage | 6kV (50Hz, 1min.) | |
| Temperature Range | -40℃ ~ +90℃ (IEC) / -40℃ ~ +75℃ (UL) | |
| Upper Temperature Limit | +105℃ (IEC) | |
| Degree of Protection (mated) | IP67 | |
| Degree of Protection (unmated) | IP2X | |
| Contact Resistance | ≤ 0.5mΩ | |
| Safety Class | I / II | |
| Contact Material | Copper Alloy, Tin Plated | |
| Insulation Material | PC/PA | |
| Locking System | Snap-in | |
| Flame Class | UL94-V0 | |
| Salt Mist Spray Test | IEC 60068-2-52 (Severity 5) | |
| MOQ | Contact for project quotation | |
The DC connector series is a purpose-built solar DC connector — engineered and rigorously tested for photovoltaic system interconnection. Unlike standard connectors, it delivers consistent contact resistance and IP67-rated waterproof protection across all current ratings, ensuring safe and reliable DC power transmission in solar installations. Available in both 1000V DC and 1500V DC voltage classes, it serves projects ranging from rooftop residential to large-scale utility solar farms. Widely available options match 2.5mm², 4mm², and 6mm² solar cables.
DC Connector Protection & Installation Characteristics
Available with φ4mm pin system and snap-in locking mechanism, the DC connector ensures secure, tool-free mating and disconnection. Its IP67 protection rating when mated provides reliable sealing against dust and temporary immersion, making it ideal for outdoor PV installations. The connector’s 6kV test voltage withstand capability ensures safe operation under transient overvoltage conditions commonly found in solar arrays.
Request a Quotation for DC Connectors – 1000V/1500V Series
Rated at 17A–30A, IP67 standard, φ4mm connector system, comes in 1000V DC and 1500V DC varieties. 0.5mΩ contact resistance, UL94-V0 confirmed. Suitable for solar PV systems, installation in combiner boxes and connecting inverters. OEM/ODM option available with full documentation.
Project-Based Quotation • IEC/UL Certified • Worldwide Shipping
OEM/ODM Supply – Custom-Built DC Connection Solutions
DC Connector – Authentic, Reliable DC Protection
The DC connector series addresses challenges seen in substandard PV connectors, where high contact resistance and poor sealing lead to overheating and system failures. It delivers true DC-rated performance with ≤0.5mΩ contact resistance, IP67 protection, and UL94-V0 flame-rated housing. Available in both 1000V and 1500V DC versions, it is tailored for modern solar applications such as residential rooftop systems and large-scale utility projects. Switching from competing brands like Stäubli, Amphenol, or TE Connectivity is seamless, with HUYU Electric offering certified safety, custom labeling, and competitive pricing directly from the manufacturer.
Frequently Asked Questions
What is a DC cable for?
The DC cable functions by conveying direct current electricity generated from different sources for use by various loads. For example, in a photovoltaic setup, DC cables facilitate the connection of solar panels to combiner boxes and inverters. DC connectors have been designed to join and secure DC solar cables.
What is DC cable company?
A manufacturer of DC lines makes cables and connected for transmitting DC electricity. HUYU, being a complete manufacturer of DC cable connectors, develops connectors that are matched with a DC cable offering a whole range of connection solutions for solar PV methods.
What’s the difference between DC cable and AC cable?
DC cables Direct current cables contain a steady voltage without zero crossing. They use connectors such as a DC connector, which has good insulation and low contact resistance while being IP rated. Alternating current cables transfer alternating current and face many different requirements for connections and insulation, as they have zero crossing current and different voltage levels which affect insulation and cable properties.
Is DC cable copper?
Definitely, top-notch DC cables make use of copper conductors (bare or tinned copper) because of great electrical conductivity. Copper pins of the connectors used in DC connection are tinned for low contact resistance (≤0.5mΩ) and corrosion. Our connectors work in conjunction with standard PV copper wires to offer good efficiency in solar applications.
Are DC connectors waterproof?
Indeed, upon pairing, our DC connectors acquire their IP67 protection rating – meaning that the connectors are completely protected against solid objects, such as dust, and are capable of withstanding temporary immersion in water (for instance, at a depth of 1 meter for 30 minutes). As a result, they are suitable for outdoor solar installations that may be subject to rain, snow, and similar weather conditions.
What voltage ratings are available for these DC connectors?
We have two types of voltage: 1000V DC (common for small commercial and household setups) and 1500V DC (suitable for utility and large-scale solar panels). The two types have the same mechanical and environmental properties and are therefore approved for use at their voltage levels.
