40A Waterproof Power Connector

HuaYi-FaDa Technology professionally develops and manufactures the 40A Waterproof Power Connector, a high-current waterproof power connector featuring a screw-locking structure for secure wiring and easy plugging/unplugging. It supports up to 40A current transmission and is widely used in industrial equipment, new energy, and outdoor power supply scenarios. With mature manufacturing processes, strict quality control, and rapid response service, we provide stable and reliable 40A Waterproof Power Connectors to customers both domestically and internationally. We support customization and bulk purchasing, making it a practical choice for industrial and outdoor power connections.

Product Introduction

The 40A Waterproof Power Connector is a waterproof power connector launched by HuaYi-FaDa Technology for high-power power supply scenarios.

The product uses a screw-locking structure; installation and disassembly are completed simply by tightening and loosening the nut, making it easy to operate and suitable for rapid on-site installation. With its 40A high current carrying capacity, the 40A Waterproof Power Connector can meet the power supply needs of various equipment main power supplies, power circuits, energy storage devices, and outdoor lighting fixtures.

We implement systematic management from structural design and material selection to production testing, ensuring that the 40A Waterproof Power Connector performs stably in terms of waterproofing, insulation, flame retardancy, and vibration resistance, and can adapt to complex operating environments such as humid, dusty, and high and low temperatures.

Feature And Application 

Product Features

• Multi‑pin configuration

2pin, 3pin and 4pin versions are available, supporting wire‑to‑wire connection for different power supply requirements.

• Circular outdoor power design

Standard circular structure, suitable for outdoor power cable connection, with strong compatibility and easy installation.

• High current output

Rated current up to 40A, dedicated for high‑power equipment power transmission.

• IP67 waterproof protection

Reliable waterproof and dustproof performance, stable operation in outdoor, humid and harsh environments.

• Multiple installation methods

Can be used as a panel mount connector, with screw fitting or soldering termination for flexible selection.

• Safe and certified

Comply with CE and RoHS standards, safe to use and environmentally friendly.

Application Fields

Solar System

Heavy machinery

Product coding machines

Industrial inkjet equipment

Electric power equipment

Communications equipment

Communications Application

Laboratory forensic & pathology equipment

Product Details 

Connection: 

Product Qualification of 40A Waterproof Power Connector

This 40A Waterproof Power Connector has passed CE, RoHS certificate. It is with IP68 waterproof level.

Technical Advantages

Low Contact Resistance Design: Utilizes high-conductivity copper alloy contacts with gold/tin plating, effectively reducing contact resistance and improving the stability of high-current transmission.

High-Strength Insulated Housing: The housing uses high-performance engineering plastics, with pressure resistance, impact resistance, and a flame retardant rating of UL94-V0, ensuring safer use.

All-Scenario Sealed Structure: A complete sealed path is formed from the connector to the cable tail, preventing moisture and dust from entering and extending service life.

Vibration and Tensile Resistance Design: The locking structure, combined with tail stress relief, effectively resists equipment vibration and cable pulling, reducing the probability of failure.

Stable Operation in Wide Temperature Range: Can be used continuously in environments ranging from -40℃ to 105℃, adapting to extremely cold, high-temperature, and large temperature difference conditions.