Heavy Duty Connectors

Heavy Duty Connectors - Contacts

Part Number	Description / PDF	Quantity
1651620000 Weidmuller	CONTACT H.D. CRIMP PIN 100/PK	428
1651520000 Weidmuller	CONTACT H.D. CRIMP PIN 100/PK	108
1651670000 Weidmuller	CONTACT H.D. CRIMP SOCKET 100/PK	14
1682300000 Weidmuller	CONTACT H.D. CRIMP PIN 7AWG	0
2637430000 Weidmuller	HDC MODUPLUG, 4MM FEMALE, PNEUMA	2080
1651530000 Weidmuller	CONTACT H.D. CRIMP PIN 100/PK	8
2637470000 Weidmuller	HDC MODUPLUG, 1.6MM MALE, PNEUMA	4060
1201400000 Weidmuller	CONTACT H.D. CRIMP SOCKET 100/PK	23
1200700000 Weidmuller	CONTACT H.D. CRIMP PIN 100/PK	1027
1682260000 Weidmuller	CONTACT H.D. CRIMP PIN 12AWG	168
1200600000 Weidmuller	CONTACT H.D. CRIMP PIN 100/PK	17
1682290000 Weidmuller	CONTACT H.D. CRIMP SOCKET 10AWG	1097
1651570000 Weidmuller	CONTACT H.D. CRIMP SOCKET 100/PK	23
1601760000 Weidmuller	CONTACT H.D. CRIMP SOCKET 100/PK	3
2637440000 Weidmuller	HDC Moduplug, 3mm Male,Pneumatic	4050
1601750000 Weidmuller	CONTACT H.D. CRIMP PIN 100/PK	275
1651580000 Weidmuller	CONTACT H.D. CRIMP SOCKET 100/PK	57
1651690000 Weidmuller	CONTACT H.D. CRIMP SOCKET 100/PK	18
1651640000 Weidmuller	CONTACT H.D. CRIMP PIN 100/PK	115
1651700000 Weidmuller	CONTACT H.D. CRIMP SOCKET 100/PK	1

Heavy Duty Connectors - Contacts

1. Overview

Heavy duty connectors - contacts are specialized electrical components designed to establish reliable conductive pathways in high-current, high-voltage, or harsh-environment applications. These contacts serve as critical interface points in power transmission systems, industrial machinery, and transportation infrastructure. Their importance continues to grow with advancements in electrification, renewable energy systems, and automated manufacturing processes.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Bolted Contacts	High mechanical stability, screw-terminal connections	Power distribution panels, heavy machinery
Blade Contacts	Quick-insert design with positive lock mechanism	Automotive systems, battery packs
Circular Contacts	360 rotational connectivity	Rotary unions, wind turbines
Printed Circuit Contacts	Surface-mount compatible with PCB integration	Industrial control systems, automation equipment

3. Structure and Components

Typical construction includes:

Contact body: Copper alloys (C18150, C11000) or aluminum alloys
Contact surface: Silver-plated or tin-coated for enhanced conductivity
Insulation housing: Thermoplastic (PBT) or thermoset materials
Locking mechanism: Bayonet, threaded, or spring-loaded systems
Environmental seals: IP65-rated gaskets and O-rings

Modular designs often incorporate replaceable contact inserts and integrated cooling channels.

4. Key Technical Specifications

Parameter	Typical Range	Importance
Current Rating	100A - 5000A	Determines power transmission capacity
Voltage Rating	600V - 15kV	Ensures dielectric safety
Contact Resistance	<0.1m - 0.5m	Impacts thermal performance
Temperature Range	-55 C to +150 C	Defines operational envelope
Insertion Force	50N - 200N	Affects mating durability

5. Application Fields

Energy: Power generation equipment, grid infrastructure
Transportation: Electric vehicles, rail systems, marine propulsion
Industrial: CNC machinery, welding robots, factory automation
Renewables: Wind turbine converters, solar inverters
Military/Aerospace: Avionics systems, defense equipment

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Features
TE Connectivity	XD Connector System	1500A rating, quick-make design
Amphenol Industrial	MAXRAD High Power	IP67 protection, 3-phase configuration
Delphi Automotive	EVP High Voltage Connector	800V capability, fault current protection

7. Selection Recommendations

Key considerations:

Current/voltage requirements with 20% safety margin
Environmental protection (IP rating, corrosion resistance)
Mating cycle requirements (1000-10,000+ cycles)
Compliance with standards (IEC 60999, UL 486A-B)
Thermal derating for ambient temperatures >40 C

Case study: For wind turbine generator connections, specify silver-plated contacts with IP65 sealing and vibration damping features.

8. Industry Trends

Current developments include:

Miniaturization while maintaining high current density
Integration with smart monitoring (IoT-enabled contacts)
Advanced coating technologies (graphene-enhanced surfaces)
Increased focus on recyclable materials
Hybrid designs combining power and signal transmission