UL94-V0 3 Pin M25 Waterproof Cable Connector Self Locking IP67 Power Connector
Industrial Circular Connector M25 3 Pin 50A IP67 Waterproof Connector
Designed for harsh industrial environments, the M25 3 Pin 50A IP67 waterproof circular connector provides reliable industrial power connections. With stable high-current transmission and strong environmental resistance, it is widely used in industrial automation, new energy equipment, and outdoor machinery.
The standard M25 3-pin structure supports three-phase or multi-circuit DC/AC power. Its 50A rated current safely powers medium to high-power equipment, while IP67 protection guarantees stable operation in humid, dusty, and vibrating conditions.
Application Industries
- Communications Applications
- Product Coding Machines
- Inventory Product Coding Systems
- Inkjet Systems
- Solar Systems
- Industrial Inkjet Equipment
- Electric Power Equipment
- Laboratory Forensic & Pathology Equipment
- Communications Equipment
- Heavy Machinery
Quick Details of IP67 Waterproof Connector
1. Excellent Electrical Performance
Rated 600V high voltage and 50A large current, supports high-power stable power transmission
3-core pure power pin design with large conductive area, low voltage drop and no overheating
Ideal for heavy-duty industrial power connection with stable and reliable load capacity
2. UL94-V0 Flame Retardant Housing
Adopts UL94-V0 grade flame-retardant material, self-extinguishing and fireproof
High temperature resistance, anti-aging and excellent insulation, effectively prevent electric leakage and short circuit
Meets industrial safety standards for long-term continuous operation
3. M25 Self-Locking Quick Connection
Tool-free quick plug-in & self-locking design for fast and easy installation
Built-in buckle structure provides anti-vibration, anti-loosening and anti-drop performance
Repeated plugging and unplugging available, long service life and easy maintenance
4. IP67 Waterproof & Dustproof
Industrial IP67 rating, fully dust-tight and waterproof against temporary immersion
High-quality silicone sealing ring effectively blocks water, dust, oil and moisture
Stable performance in harsh outdoor and industrial environments
5. Premium Conductive Material & Durability
High-purity brass contacts with low resistance and excellent conductivity
Anti-oxidation, anti-corrosion and wear-resistant, ensuring stable connection long-term
Robust structure, pull-resistant and impact-resistant for heavy-duty applications
6. Wide Application
Widely used in new energy equipment, photovoltaic systems, industrial machinery, outdoor power equipment, automation devices and engineering lighting
Perfect for high-current power connection in industrial, outdoor and vehicle scenarios
Technical Parameters
| Contact Resistance | 10 mΩ max |
| Insulation Structure | 500 MΩ at 500VDC |
| Operating Temperature | -40°C ~ +105°C |
| IP Class | IP67 (1m / 30min) when mated |
| Mold Material | PA66 |
| Contact/Terminal Material | Gold Plated Brass |
| Seal Material | Silicone |
Operation Parameters
| Voltage Rating | 600VAC max |
| Current Rating | 50A max |
| Min Wire Size OD | 6.5mm ~ 10mm |
| Max Wire Size OD | 10.5mm ~ 18mm |
| Max Cable Cross Section Area | 0.5mm² ~ 6.0mm² |
Product Images

Frequently Asked Questions
Q: Are you a factory or trading company?
A: We are a factory located in Ulinkcon Industrial Park, Bao'an District, Shenzhen, China.
Q: Do you support product customization?
A: Yes, customization is available for specifications, colors, and packaging. Please provide your detailed requirements, and we will quote accordingly with a sample confirmation process.
Q: How can I get samples?
A: We are pleased to offer samples, with freight costs covered by the customer. Please provide your courier account number and detailed address, and we will dispatch samples immediately.