Blade Type Power Connectors - Contacts are electrical components designed to establish secure, high-current connections in power transmission systems. Featuring flat, blade-shaped conductive elements, these connectors enable efficient energy transfer while maintaining safety and reliability. They play a critical role in modern electrical infrastructure, supporting applications from industrial machinery to renewable energy systems.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| Single Blade Contact | Simplex design for low-to-medium current (up to 30A), quick-disconnect capability | Consumer electronics power supplies |
| Double Blade Contact | Dual-contact interface for higher current capacity (50-100A), improved thermal stability | Industrial motor controllers |
| Insulated Piercing Blade | Self-piercing design for cable connections without pre-stripping, IP67 rating | Outdoor lighting systems |
| High-Density Blade Array | Multi-pin configuration with 0.8mm pitch, signal/power hybrid transmission | Telecom equipment racks |
Typical construction includes:
| Parameter | Value Range | Importance |
|---|---|---|
| Rated Current | 10A - 200A per contact | Determines power transmission capacity |
| Contact Resistance | 5m (initial) - 20m (aged) | Impacts thermal performance and energy loss |
| Dielectric Strength | 1kV - 10kV AC | Ensures electrical safety isolation |
| Temperature Rise | 30K at rated current | Complies with IEC 60998 standards |
| Mating Cycle Life | 500 - 10,000 cycles | Dictates maintenance intervals |
| Manufacturer | Representative Product | Key Specifications |
|---|---|---|
| TE Connectivity | MicroBlade+ 2.5mm | 19A rating, 0.22N contact force, automotive qualified |
| Amphenol | PWRBlade HD | 100A per contact, quick-mate polarization design |
| Molex | Mega Blade | IP69K sealed variant, 150A capacity |
| Weidm ller | BLADEcontrol | Condition monitoring integrated contacts |
Key consideration factors:
Recommended derating: Operate at 80% of rated current for industrial applications
A 50kW solar inverter design implemented double blade contacts with silver-plated copper material, achieving 98.5% power transmission efficiency. The connectors met IP65 requirements and demonstrated 5,000+ mating cycles in accelerated life testing.