Heavy Duty Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
0936000480

0936000480

Woodhead - Molex

NYL LOCKNUT PG13.5 GY RAL7035

0

0936000153

0936000153

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP PG21 RA

0

0936000393

0936000393

Woodhead - Molex

POLYAMIDE CABLE GLAND

371

0936000435

0936000435

Woodhead - Molex

POLYAMIDE CABLE GLAND

0

0936050001

0936050001

Woodhead - Molex

EXTENSION GROUND TERMINAL LEFT T

0

0936010572

0936010572

Woodhead - Molex

3A HPHE COVER SCRW W/ WIRE

0

0936000193

0936000193

Woodhead - Molex

NYL BLANKING PLUG W/GKT PG21

0

0936000342

0936000342

Woodhead - Molex

POLYAMIDE CABLE GLAND

0

0936000125

0936000125

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP M12X1.5

0

0936000085

0936000085

Woodhead - Molex

MET.ADAPT FROM M TO NPT & FROM P

0

0936012377

0936012377

Woodhead - Molex

16B HV COVER W/GKT 4PGS

0

0936000253

0936000253

Woodhead - Molex

MET. LOCKNUT SS M40

0

0585500003

0585500003

Woodhead - Molex

CONN RECT END BELL CAP ASSY

0

0936000425

0936000425

Woodhead - Molex

PLAST.CABLE GLAND WITH NUT END G

0

0936012889

0936012889

Woodhead - Molex

16B EMC COVER W/GKT 2LEV

0

0936000045

0936000045

Woodhead - Molex

METAL CABLE GLAND NORMAL GASKET

0

0936000189

0936000189

Woodhead - Molex

NYL BLANKING PLUG W/GKT PG13.5 R

0

0936000429

0936000429

Woodhead - Molex

POLYAMIDE CABLE GLAND

0

0936000205

0936000205

Woodhead - Molex

NYL BLANKING PLUG W/GKT PG48

0

0936000195

0936000195

Woodhead - Molex

NYL BLANKING PLUG W/GKT PG21 RAL

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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