China M40 Cable Circular Power Plug Waterproof Connector - IP67 Bayonet Coupling by Reliable Suppliers and Factory
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.
Connecting Mode |
Crimp & Screw Locking |
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Pins No. |
2 |
3 |
4 |
5 |
2+4 |
3+9 |
Rated Current |
150A |
120A |
50A |
120A +10A |
50A +10A |
|
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 |
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Protective Level |
IP67 |
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Cable Gauge |
4mm²–35.0mm² |
4.0mm²–25.0mm² |
1.0mm²–6.0mm² |
2.0mm²–16.0mm² |
1.0mm²–6.0mm² |
|
Diameter Range |
MAX ø 25.0mm |
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Operating Temp. |
-40℃ ~ 105℃ |
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Copper Needles Material |
Copper Alloy |
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Flame Resistant |
94-V0 |
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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.
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Q What is the maximum current rating for the M40 Series connector?The M40 Series supports up to 150A at 600V for the 2-pin configuration. Other pin arrangements (3Pin, 4Pin, 5Pin) offer different current ratings — for example, the 3-pin and 4-pin versions support up to 120A at 600V, while the 5-pin version supports 50A at 500V. ODM options for custom current ratings are also available.
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Q What is the IP rating of the M40 Series waterproof connector?The M40 Series connector achieves an IP67 waterproof rating when fully mated. This means it is protected against dust ingress and can withstand temporary immersion in water up to 1 meter for 30 minutes, making it ideal for outdoor and solar energy applications.
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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, CCC, as well as IP67 and IP68 ratings. We can also apply for additional certifications based on your specific project requirements.
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Q Does the M40 Series connector support OEM or ODM customization?Yes, we fully support both OEM and ODM customization. Whether you need a specific pin arrangement, current rating, cable gauge, or branding, our R&D team can work with you to develop a tailored solution. Please contact us with your requirements for a detailed quote.
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Q What is the operating temperature range of the M40 Series connector?The M40 Series connectors are designed to operate reliably across a wide temperature range of -40°C to +105°C. This makes them highly suitable for demanding environments such as photovoltaic inverter systems and other industrial power equipment.
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Q What wiring method does the M40 Series use and is soldering required?The M40 Series uses a crimping wiring method combined with a bayonet screw locking mechanism. No soldering is required, making installation faster, cleaner, and more reliable. The bayonet structure ensures a quick and secure connection that is both safe and easy to operate in the field.

