Heavy Duty Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
0936070018

0936070018

Woodhead - Molex

SCREW M4 X 24 S.S ZINC PLATED

0

0936000403

0936000403

Woodhead - Molex

POLYAMIDE CABLE GLAND

248

0936010595

0936010595

Woodhead - Molex

3A HPEMC COVER TOGG W/ WIRE

0

0936000397

0936000397

Woodhead - Molex

POLYAMIDE CABLE GLAND

0

0936000001

0936000001

Woodhead - Molex

MET. THREADED EXT. TUBE M20-M20

0

0936000180

0936000180

Woodhead - Molex

NYL BLANKING PLUG W/GKT PG7 RAL7

0

0936000467

0936000467

Woodhead - Molex

NYL LOCKNUT M63X1.5 BK RAL9005

0

0936000128

0936000128

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP M16X1.5

0

0936010713

0936010713

Woodhead - Molex

3A STD NYL COVER W/GKT 1LEV F/ F

0

0936000077

0936000077

Woodhead - Molex

MET.ADAPT FROM M TO NPT & FROM P

0

0936070028

0936070028

Woodhead - Molex

SCREW M6 X 40 S.S ZINC PLATED

0

0936070056

0936070056

Woodhead - Molex

SCREW M5X12X BOXS1,S2,S3,S4,S5,I

0

0936012885

0936012885

Woodhead - Molex

16B HEHV COVER 4PGS

0

0936000071

0936000071

Woodhead - Molex

32X13 NYL CABGLAND W/GROM PG16 (

0

0936000201

0936000201

Woodhead - Molex

NYL BLANKING PLUG W/GKT PG36 RAL

0

0936000402

0936000402

Woodhead - Molex

PLAST.CABLE GLAND WITH NUT END G

0

0936010718

0936010718

Woodhead - Molex

3A HE MET. COVER 1LEV FOR MALE

0

0936000456

0936000456

Woodhead - Molex

NYL LOCKNUT M25X1.5 GY RAL7035

0

0936000046

0936000046

Woodhead - Molex

METAL CABLE GLAND NORMAL GASKET

0

0936000347

0936000347

Woodhead - Molex

POLYAMIDE CABLE GLAND

300

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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