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China M40 Waterproof Circular Power Plug Connector - High Current Bayonet Connector from Reliable Suppliers & Factory
Product Feature
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.
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.
Contact Us
Frequently Asked Questions
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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 offer different ratings — for example, the 3-pin and 4-pin versions are rated at 120A/600V, while the 5-pin version supports 50A/500V.
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Q What is the waterproof rating of the M40 Series connector?The M40 Series connector achieves an IP67 waterproof rating when fully mated, making it suitable for outdoor and harsh-environment applications such as photovoltaic inverter systems.
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Q Does the M40 connector support OEM or ODM customization?Yes, we fully support OEM and ODM customization. You can request custom pin arrangements, current ratings, cable gauges, and other specifications. Please contact our sales team with your requirements for a tailored solution.
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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, and CCC. They also carry IP67/IP68 ingress protection ratings. We can assist with additional certification applications upon request.
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Q What wiring method does the M40 Series connector use?The M40 Series uses a crimping wiring method combined with a screw locking mechanism. No soldering is required, which makes installation fast, clean, and reliable — ideal for high-volume production environments.
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Q What operating temperature range does the M40 connector support?The M40 Series connector is rated for an operating temperature range of -40℃ to +105℃, making it suitable for a wide range of industrial and outdoor environments including solar power systems and heavy-duty equipment.