Heavy Duty Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
0936000322

0936000322

Woodhead - Molex

MET. REDUCER M25-M20

0

0936000389

0936000389

Woodhead - Molex

PLAST.CABLE GLAND WITH NUT END G

0

0936000344

0936000344

Woodhead - Molex

POLYAMIDE CABLE GLAND - BLACK M1

0

0936000101

0936000101

Woodhead - Molex

METAL NUT PG21

0

0936010592

0936010592

Woodhead - Molex

3A HPHE COVER TOGG W/O WIRE

0

0936000405

0936000405

Woodhead - Molex

POLYAMIDE CABLE GLAND

300

0936000142

0936000142

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP PG11

0

0936000424

0936000424

Woodhead - Molex

PLAST.CABLE GLAND WITH NUT END G

93

0936000325

0936000325

Woodhead - Molex

MET. REDUCER M50-M40

0

0936070015

0936070015

Woodhead - Molex

SCREW M4 X 16 S.S

0

0936000446

0936000446

Woodhead - Molex

NYL LOCKNUT M12X1.5 BK RAL9005

0

0936000136

0936000136

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP PG7

0

0936070043

0936070043

Woodhead - Molex

SINGLE LEVER 3A - THERMOPLASTIC

0

0936000174

0936000174

Woodhead - Molex

NYL BLANKING PLUG W/GKT M50X1.5

0

0936000130

0936000130

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP M20X1.5

0

0936000004

0936000004

Woodhead - Molex

MET. THREADED EXT. TUBE M25-M25

0

0936050006

0936050006

Woodhead - Molex

GROUND TERMINAL 6B

0

0936000482

0936000482

Woodhead - Molex

NYL LOCKNUT PG16 BK RAL9005

0

0936010769

0936010769

Woodhead - Molex

16B HPHE COVER TOGG W/ WIRE

0

0936010707

0936010707

Woodhead - Molex

PROTEC COVER W/SMALL GASKET HE M

0

Heavy Duty Connectors - Accessories

1. Overview

Heavy Duty Connectors (HDC) and accessories are industrial-grade electrical components designed to establish secure and reliable connections in harsh environments. They support high current, voltage, and mechanical stress tolerance, enabling safe power/data transmission in critical systems. These connectors are essential in modern infrastructure, including renewable energy systems, smart grids, and industrial automation, where failure prevention and operational continuity are paramount.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Industrial Circular ConnectorsRobust metal/plastic housing, IP65-IP69K protection, threaded couplingFactory automation equipment, robotics
Power Distribution ConnectorsHigh-current capacity (up to 1000A), multi-pole designWind turbines, data center UPS systems
Railway ConnectorsVibration-resistant, EMI shielding, fire-retardant materialsHigh-speed trains, subway systems
Hydraulic/Pneumatic ConnectorsCombined electrical-fluidic interfaces, leak-proof sealingMining equipment, construction machinery
AccessoriesCable glands, panel mount adapters, contact insertsCustom system integration

3. Structure and Components

A typical HDC assembly comprises:
- Housing: Thermoplastic (PA66) or die-cast metal (aluminum alloy) with anti-UV treatment
- Contact System: Silver-plated copper alloy contacts with self-cleaning design
- Insulation: High-temperature resistant PA or PPS materials (180 C rating)
- Retention Mechanism: Threaded, bayonet, or push-pull locking systems
- Sealing: EPDM rubber gaskets for IP67 protection

4. Key Technical Specifications

ParameterImportance
Rated Current (16-2000A)Determines power transmission capacity
Dielectric Withstanding Voltage (1000-8000V)Ensures electrical safety under overvoltage
Contact Resistance ( 0.5m )Minimizes energy loss and thermal rise
Mechanical Durability (5000-20000 mating cycles)Long-term reliability indicator
Operating Temperature (-40 C to +150 C)Environmental adaptability
Vibration Resistance (10G-50G)Critical for mobile/transport applications

5. Application Fields

Key industries include:
- Energy: Solar inverters, offshore wind turbines
- Transportation: Electric vehicle charging stations, locomotive systems
- Manufacturing: CNC machines, automated guided vehicles (AGVs)
- Infrastructure: Smart grid switchgear, emergency power systems
- Special Cases: Explosion-proof connectors for petrochemical plants

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
TE ConnectivityDEUTSCH HC Series600A capacity, aerospace-grade reliability
Amphenol IndustrialDuramax MaxGuardIP69K rated, corrosion-resistant marine grade
Phoenix ContactHeavycon SystemModular design with hybrid power/signal integration
Delphi Connection SystemsWeatherGuard HV1500V DC rating for photovoltaic applications

7. Selection Recommendations

Key considerations:
1. Calculate maximum current/voltage with 20% safety margin
2. Match IP rating to environmental conditions (e.g., IP67 for outdoor use)
3. Consider mating cycle requirements for maintenance frequency
4. Verify material compatibility for chemical exposure
5. Check standard certifications (IEC 61984, UL 1977)
Case Example: For offshore wind turbine generator connection: Select IP68-rated connector with 1500V insulation and salt spray resistance >1000h.

8. Industry Trends

Emerging trends include:
- Miniaturization with increased power density (e.g., 30% size reduction by 2025)
- Integrated smart sensors for predictive maintenance
- Adoption of composite materials for weight reduction (-40% vs. metal)
- Development of hydrogen-compatible connectors for fuel cell systems
- Growth in hybrid connectors combining power, data, and fluid transmission

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