Heavy Duty Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
0936000048

0936000048

Woodhead - Molex

METAL CABLE GLAND NORMAL GASKET

0

0936000137

0936000137

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP PG7 BK

0

0936000162

0936000162

Woodhead - Molex

NYL BLANKING PLUG W/GKT M20X1.5

0

0936070016

0936070016

Woodhead - Molex

SCREW M4 X 20 S.S ZINC PLATED

0

0936000472

0936000472

Woodhead - Molex

NYL LOCKNUT PG9 GY RAL7001

0

0936000400

0936000400

Woodhead - Molex

PLAST.CABLE GLAND WITH NUT END G

246

0936000390

0936000390

Woodhead - Molex

PLAST.CABLE GLAND WITH NUT END G

22

0936000439

0936000439

Woodhead - Molex

POLYAMIDE CABLE GLAND

0

0936000498

0936000498

Woodhead - Molex

NYL LOCKNUT PG48 GY RAL7035

0

0936014217

0936014217

Woodhead - Molex

32A HE COVER W/GKT 2LEV

0

0936070034

0936070034

Woodhead - Molex

SCREW M4X6 COPPER PLATED

0

0936000249

0936000249

Woodhead - Molex

MET. LOCKNUT SS M16

0

0936000145

0936000145

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP PG13.5

0

0936070075

0936070075

Woodhead - Molex

PE SCREW FOR INSERTS

0

0936000463

0936000463

Woodhead - Molex

NYL LOCKNUT M50X1.5 GY RAL7001

0

0936010594

0936010594

Woodhead - Molex

3A HPHE COVER TOGG W/ WIRE

0

0936000106

0936000106

Woodhead - Molex

METAL NUT PG7

0

0936000113

0936000113

Woodhead - Molex

METAL BLANKING PLUGS M32X1.5 W/G

0

0936000427

0936000427

Woodhead - Molex

POLYAMIDE CABLE GLAND

0

0936000164

0936000164

Woodhead - Molex

NYL BLANKING PLUG W/GKT M25X1.5

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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