Heavy Duty Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
0936000495

0936000495

Woodhead - Molex

NYL LOCKNUT PG42 GY RAL7035

0

0936000060

0936000060

Woodhead - Molex

S-Q12/0 POLARIZATION KEY

0

0936014220

0936014220

Woodhead - Molex

32A HE COVER W/GKT 4PGS

0

0936000421

0936000421

Woodhead - Molex

POLYAMIDE CABLE GLAND

0

0936000313

0936000313

Woodhead - Molex

MET. ENLARGING ADAPTER M16-M20

0

0936000382

0936000382

Woodhead - Molex

PLAST.CABLE GLAND W/NUT END GAS.

0

0936000134

0936000134

Woodhead - Molex

NYL CABGLAND IP67 SP.TOP M25X1.5

0

0936070059

0936070059

Woodhead - Molex

16B BOTTOM GASKET FOR BULKHEAD H

0

0936010714

0936010714

Woodhead - Molex

3A STD NYL COVER 1LEV F/ MALE GY

0

0936070037

0936070037

Woodhead - Molex

SCREW M5X8 COPPER PLATED

0

0936013850

0936013850

Woodhead - Molex

24B HE COVER W/GKT 1LEV

0

0936000483

0936000483

Woodhead - Molex

NYL LOCKNUT PG16 GY RAL7035

0

0936070038

0936070038

Woodhead - Molex

SCREW M5X10 COPPER PLATED

0

0936070068

0936070068

Woodhead - Molex

SINGLE LEVER 16P 1 5MM STEEL ZIN

0

0936000328

0936000328

Woodhead - Molex

MET. REDUCER PG21-PG16

92

0936012378

0936012378

Woodhead - Molex

16B HEHV COVER W/GKT 4PGS

0

0628001499

0628001499

Woodhead - Molex

DOCKING STATION KIT

0

0936014471

0936014471

Woodhead - Molex

HI/CONST.HOOD TOP/ENT 2 LEV.M40

0

0588660001

0588660001

Woodhead - Molex

CONN RECT END BELL CAP YELLOW

120

0936010738

0936010738

Woodhead - Molex

24B HPHE COVER SCRW W/ WIRE

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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