Blade Type Power Connectors

Blade Type Power Connectors - Contacts

Image	Part Number	Description / PDF	Quantity	Rfq
	0913070001 Wickmann / Littelfuse	SPRINGTERM. ATO CB 0.5-0.8MM	0

Image

Part Number

Description / PDF

Quantity

Rfq

0913070001

Wickmann / Littelfuse

SPRINGTERM. ATO CB 0.5-0.8MM

Blade Type Power Connectors - Contacts

1. Overview

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.

2. Main Types and Functional Classification

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

3. Structure and Composition

Typical construction includes:

Contact Blade: Phosphor bronze or beryllium copper substrate with gold-plated surface (thickness: 0.1-0.3 m)
Insulation Body: High-temperature resistant thermoplastic (UL94 V-0 rating), operating temperature range: -40 C to +150 C
Retention Mechanism: Spring-loaded locking arms with 0.5N-2.0N normal force control
Termination Interface: Solder tabs (reflow compatible) or screw terminals (M3-M6 threads)

4. Key Technical Specifications

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

5. Application Fields

Energy Sector: Solar inverters, wind turbine control cabinets
Automotive: EV charging stations (Type 2/CCS interfaces)
Industrial: CNC machine tool power distribution
Telecom: 48V DC power systems for base stations
Consumer: Smart home energy storage systems

6. Leading Manufacturers and Products

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

7. Selection Guidelines

Key consideration factors:

Current/voltage requirements with 20% safety margin
Environmental conditions (temperature, humidity, vibration)
Compliance with regional standards (UL/CSA/IEC)
Termination method compatibility (solder vs. screw)
Service life vs. maintenance cost trade-off

Recommended derating: Operate at 80% of rated current for industrial applications

8. Industry Development Trends

Miniaturization: 0.5mm pitch blade arrays for compact electronics
Smart Integration: Embedded current sensing and temperature monitoring
Material Innovation: Graphene-enhanced copper alloys for reduced resistance
Sustainability: Halogen-free insulation materials and RoHS compliance
Automotive Focus: 800V high-voltage blade connectors for EV platforms

Application Case: Renewable Energy System

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.