Heavy Duty Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
0936000186

0936000186

Woodhead - Molex

NYL BLANKING PLUG W/GKT PG11 RAL

0

0936000464

0936000464

Woodhead - Molex

NYL LOCKNUT M50X1.5 BK RAL9005

0

0936050034

0936050034

Woodhead - Molex

6B OPEN COVER W/GASKET FOR BULK.

0

0936000454

0936000454

Woodhead - Molex

NYL LOCKNUT M25X1.5 GY RAL7001

0

0936000169

0936000169

Woodhead - Molex

NYL BLANKING PLUG W/GKT M40X1.5

0

0936000461

0936000461

Woodhead - Molex

NYL LOCKNUT M40X1.5 BK RAL9005

0

0936010711

0936010711

Woodhead - Molex

3A HE MET. COVER FOR MALE

0

0936000254

0936000254

Woodhead - Molex

MET. LOCKNUT SS M50

0

0936070019

0936070019

Woodhead - Molex

SCREW M4 X 24 S.S

0

0936060445

0936060445

Woodhead - Molex

6B NYL FRAME FOR D-SUB CONN. 9P

0

0936000115

0936000115

Woodhead - Molex

METAL BLANKING PLUGS M50X1.5 W/G

0

0936010709

0936010709

Woodhead - Molex

3A STD NYL COVER F/ MALE BK

0

0936000477

0936000477

Woodhead - Molex

NYL LOCKNUT PG11 GY RAL7035

0

0936000375

0936000375

Woodhead - Molex

POLYAMIDE CABLE GLAND

0

0936000487

0936000487

Woodhead - Molex

NYL LOCKNUT PG29 GY RAL7001

0

0936010573

0936010573

Woodhead - Molex

3A HPEMC COVER SCRW W/ WIRE

0

0936000139

0936000139

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP PG9

0

0936000140

0936000140

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP PG9 BK

0

0936070046

0936070046

Woodhead - Molex

SINGLE LEVER 48B - STEEL ZINC PL

0

0936000468

0936000468

Woodhead - Molex

NYL LOCKNUT M63X1.5 GY RAL7035

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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