Heavy Duty Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
0936070022

0936070022

Woodhead - Molex

SCREW M6 X 25 S.S ZINC PLATED

0

0936000104

0936000104

Woodhead - Molex

METAL NUT PG42

0

0936000358

0936000358

Woodhead - Molex

POLYAMIDE CABLE GLAND

191

0936000054

0936000054

Woodhead - Molex

MET. ENLARGING ADAPTER PG21-PG29

49

0936010698

0936010698

Woodhead - Molex

PROTECTION COVER W/GASKET GRY IN

0

0936000496

0936000496

Woodhead - Molex

NYL LOCKNUT PG48 GY RAL7001

0

0936070012

0936070012

Woodhead - Molex

SINGLE LEVER 6 B '44X27'STAINLES

0

0936000090

0936000090

Woodhead - Molex

MET.ADAPT FROM M TO NPT & FROM P

0

0936000459

0936000459

Woodhead - Molex

NYL LOCKNUT M32X1.5 GY RAL7035

0

0936000437

0936000437

Woodhead - Molex

PLAST.CABLE GLAND WITH NUT END G

0

0936000331

0936000331

Woodhead - Molex

MET. REDUCER PG42-PG36

0

0936000490

0936000490

Woodhead - Molex

NYL LOCKNUT PG36 GY RAL7001

0

0936000102

0936000102

Woodhead - Molex

METAL NUT PG29

0

0936050030

0936050030

Woodhead - Molex

6B COVER W/GASKET FOR BULK.HOUS.

0

0936050015

0936050015

Woodhead - Molex

SIMPLE CODE PIN STEEL ZINC PLATE

440

0936000469

0936000469

Woodhead - Molex

NYL LOCKNUT PG7 GY RAL7001

0

0936012891

0936012891

Woodhead - Molex

16B HE COVER 2PGS

0

0936000413

0936000413

Woodhead - Molex

PLAST.CABLE GLAND WITH NUT END G

0

0936000452

0936000452

Woodhead - Molex

NYL LOCKNUT M20X1.5 BK RAL9005

0

0936000418

0936000418

Woodhead - Molex

PLAST.CABLE GLAND WITH NUT END G

141

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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