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Middle 3 Pin (20A)

The Middle 3pin Waterproof Connector is rated at 20A current and 300V voltage, Designed for IoT, energy storage, industrial automation and robotics, it delivers reliable electrical connections for outdoor and mobile equipment.

Advantages
● Self-locking for easy mating/unmating
● Audible click upon locking
● RoHS & REACH compliant
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Specifications Challenges Positioning Features Applications FAQ Related

Specifications

Rated Voltage: 300V DC
Rated Current: 20A
Withstand Voltage: 2,000V AC
Insulation Resistance: 100MΩ at DC 500V
IP Rating: IP67 Mated
OperatingTemperature: -40°C to 105°C
Salt Spray: 5% Nacl, 48H
Mating Cycle: 500 Cycles
Wire Processing: Solder
Wire Gauge: 14AWG/Max
Flammability Rating: UL94V-0

Challenges

In IoT, outdoor lighting, solar trackers and industrial automation, connectors face water ingress, temperature extremes and electrical compatibility challenges. The Middle 3pin Industrial Waterproof Connector combines IP67 protection, wide-temperature operation and compliance certifications with 20A/300V performance, supporting reliable connections across industrial equipment while helping simplify compliance and reduce maintenance costs.

Positioning

Middle 3pin is an industrial-grade outdoor connector designed for demanding environments. Rated at 20A/300V, it combines IP67 protection with a -40°C to 105°C operating range. Designed for IoT, energy storage, industrial automation and robotics, it delivers reliable electrical connections for outdoor and mobile equipment. Key benefits include dust and water protection, stable electrical performance, wide-temperature capability, dual UL compliance, and robust mechanical durability.

Features

Advanced Dust & Water Protection

With IP67 protection, the connector is dust-tight and can withstand temporary immersion under standard temperature and pressure conditions. Compared with conventional IP65 connectors, it provides enhanced protection against dust and water ingress, supporting reliable operation in heavy rain, dust and high-humidity environments while helping reduce connection failures and maintenance requirements.

Wide Operating Temperature Range

Designed for a wide operating temperature range of -40°C to 105°C, the connector supports up to 500 mating cycles. Its broader temperature capability than standard consumer-grade connectors helps maintain reliable electrical and insulation performance across demanding conditions, making it suitable for outdoor projects and equipment operating across varied climates.

UL Certification for Compliance

Certified to UL 1977 and UL 2238, the connector provides established safety and compliance support for industrial applications. Compared with non-certified solutions, it helps meet acceptance requirements for North American export markets and industrial projects, reducing compliance risks and additional certification or testing requirements.

Applications

IoT, Outdoor Lighting, Solar Trackers, Energy Storage, Electric Gardening Tools, Robotics, AGVs, Drones, Marine Equipment, and Industrial Automation.

FAQ

Q

My electric motorcycle charging interface needs to support 300V/50A. Which Chogori connector series should I choose?

A
We recommend the Large Pro Series. Designed for high-power, safe, and reliable charging and discharging, the series supports 300V and 50A, making it suitable for electric motorcycles operating in challenging road and varying weather conditions. It is also fully compatible with the Large Series.
Q

Which Chogori connectors are suitable for commercial and industrial energy storage systems?

A
Chogori’s CPL Series is an ideal connector solution for commercial and industrial energy storage systems, where high-current, high-power transmission, reliability, and safety are critical.

The CPL Series covers a current range of 100–300A and is designed for connections between battery clusters and PCS (Power Conversion Systems) in commercial and industrial energy storage cabinets and large-scale energy storage plants.

Featuring high-current contacts and reinforced insulation, the series supports long-term, high-power charging and discharging. It also provides IP67 protection and arc-resistant design, enabling reliable operation in demanding commercial and industrial environments while enhancing overall system safety and stability.
Q

Which Chogori connectors are suitable for IoT (Internet of Things) applications?

A
Chogori offers a range of connector solutions for IoT (Internet of Things) applications, addressing requirements such as compact design, multi-signal integration, low power consumption, and high reliability.

Recommended products include the Mini Series 7-pin (2A), Standard Series 8/12-pin (5A/2A), Middle Series 10-pin (5A), Large Series 24-pin (5A), and M12 Series 8-pin (2A).

These connectors support multi-channel signal transmission, enabling sensor data acquisition, device control, and communication within a single system. Most models feature IP67 protection, making them suitable for demanding environments such as outdoor gateways and smart meters.

They are widely used in smart cities, smart home systems, and industrial IoT applications.
Q

Which Chogori connectors are suitable for architectural lighting applications?

A
For architectural lighting applications, connectors need to provide long-term outdoor durability, corrosion resistance, and reliable protection against water and dust. Chogori offers a range of suitable connector solutions, including:

Mini Series: 8-pin (8A)
Standard Series: 2–4 pin (10A)
Standard Series: 2+4 / 2+6 pin (10A + 2A / 5A + 2A)
Middle Series: 2–5 pin (10–20A)
Middle Series: 3+5 pin (15A + 2A)

These connectors feature weather-resistant housing materials and reliable sealing structures to withstand challenging outdoor conditions such as temperature fluctuations, rain, and UV exposure.

Their multi-pin integrated designs can handle multiple power and control signal circuits, simplifying wiring while improving overall system reliability. They are well suited for applications such as building facade lighting, architectural contour lighting, and landscape lighting projects.
Q

What IP protection ratings are available for Chogori's connectors?

A
Chogori connectors are available with a range of IP protection ratings to suit different operating environments.

Common waterproof ratings include IPX5, IPX6, and IPX7, providing protection against water jets and temporary immersion. For combined water and dust protection, available ratings include IP65, IP66, IP67, IP68, and IP69K, making them suitable for demanding environments such as outdoor industrial applications, vehicles, high-humidity and dusty conditions, and high-pressure cleaning.

Customers can select the appropriate IP-rated connector based on their specific application and environmental requirements.

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