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China M40 Cable Circular Power Plug Waterproof Connector - High-Current IP67 Factory Supply for Outdoor and Battery Applications
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China M40 Cable Circular Power Plug Waterproof Connector - High-Current IP67 Factory Supply for Outdoor and Battery Applications

The M40 Series connectors are high-performance, IP67-rated connectors designed for demanding environments. With a robust bayonet coupling design, these connectors are ideal for applications in battery systems and new energy storage solutions, particularly in China. Engineered to handle a higher current range than other models, the M40 features a larger shell, making it a reliable choice for both indoor and outdoor use, including underwater applications. As a leading factory and supplier of quality connectors, we ensure that our M40 Series deliver watertight connections essential for optimal performance in challenging conditions. Choose our M40 connectors for durability and reliability in your energy storage projects
  • Diamter Range MAX ø 25.0mm
  • Operating Tem. -40℃~105℃
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Product Details

Product Feature
Jnicon M40 Cable Circular Power Plug Waterproof Connector
M40 Series connectors mainly feature:
  • Bayonet structure, simple and quick locking design, safe and reliable.
  • Crimping wiring way, no screws, no soldering needed.
  • Different current rated options: 150A max., welcome ODM.
  • Different pins arrangement: 2Pin, 3Pin, 4Pin and 5Pin.
  • Electric Shock protection design in Contact Pins.
  • IP67 Waterproof rating (when mated).
  • Massive Used in Photovoltaic Inverter power equipments.
Product Specification

Connecting Mode

Crimp & Screw Locking

Pins No.

2

3

4

5

2+4

3+9

Rated Current

150A
600V

120A
600V

50A
500V

120A +10A
600V+300V

50A +10A
500V+300V

Contact Diameter X No.

ø 8.0

ø 6.0

ø 3.6

ø 6.0+ø 1.5

ø 3.6 +ø 1.5

Withstanding Voltage

5000V

3000V

2000V

3000V

Protective Level

IP67

Cable Gauge

4mm²–35.0mm²
(10–2AWG)

4.0mm²–25.0mm²
(10–3AWG)

1.0mm²–6.0mm²
(18–9AWG)

2.0mm²–16.0mm²
(14–6AWG)

1.0mm²–6.0mm²
(18–9AWG)

Diameter Range

MAX ø 25.0mm

Operating Temp.

-40℃ ~ 105℃

Copper Needles Material

Copper Alloy

Flame Resistant

94-V0
Our Services
We assist you in choosing the most suitable product for your application.
Solid technical support from our sales team and R&D department combined.
Production photos and videos supplied for every order you place.
Fast shipping services backed by our factory-direct supply chain.
Quality after-sales support including a 5-year warranty coverage.
OEM and ODM customization options are fully supported.
Certifications

Our products have passed rigorous testing and earned certifications from UL, CE, CQC, TUV, RoHS, CCC, plus IP67/IP68 ratings.
Contact us today and we'll send you high-definition images of all our certification credentials!
With premium quality as our cornerstone, we are also capable of applying for any extra certifications you need.

Certifications
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Frequently Asked Questions
Q What is the maximum current rating of the M40 Series connector?
The M40 Series connector supports a maximum rated current of 150A at 600V for the 2-pin configuration. Other pin configurations support up to 120A or 50A depending on the arrangement chosen.
Q What waterproof rating does the M40 Series connector carry?
The M40 Series connector achieves an IP67 waterproof rating when mated, making it suitable for outdoor and harsh environment applications such as photovoltaic inverter power equipment.
Q What pin configurations are available for the M40 Series?
The M40 Series is available in 2-pin, 3-pin, 4-pin, 5-pin, 2+4 pin, and 3+9 pin configurations to accommodate a wide range of application requirements.
Q Does the M40 Series connector support OEM and ODM customization?
Yes. We fully support OEM and ODM customization options, including custom current ratings, pin arrangements, and other specifications tailored to your specific application needs.
Q What certifications does the M40 Series connector hold?
Our M40 Series connectors have passed rigorous testing and hold certifications including UL, CE, CQC, TUV, RoHS, and CCC, along with IP67/IP68 ratings. Additional certifications can be applied for upon request.
Q What is the operating temperature range of the M40 Series connector?
The M40 Series connector is rated for an operating temperature range of -40℃ to 105℃, ensuring reliable performance across a wide range of environmental conditions.