Heavy Duty Connectors - Accessories

Image Part Number Description / PDF Quantity Rfq
7940000235

7940000235

Weidmuller

PROPORT RJ45

0

7940111833

7940111833

Weidmuller

KIT, FRONTCOM VARIO DOUBLE FRAME

6

0295000000

0295000000

Weidmuller

PLUG BLANKING BRASS PG 16

0

1430900000

1430900000

Weidmuller

CODING SET FOR CONN DSTV COS 24

0

7940000227

7940000227

Weidmuller

PROPORT 2X 9PIN FEM DSUB BULKH

0

0501100000

0501100000

Weidmuller

PLUG DONE 29X12MM 39MM DIA BRASS

0

1664370000

1664370000

Weidmuller

PLATE COVER SIZE 5 PLASTIC GRAY

0

7940000249

7940000249

Weidmuller

PROPRT AB DH +AC PWR+5A BREAKR

0

1664990000

1664990000

Weidmuller

COVER TERM ADP 8 GN 3M

0

1665020000

1665020000

Weidmuller

COVER TERM ADP-8/6 ORANGE

0

7940000256

7940000256

Weidmuller

PROPORT 9 PIN FEM DSUB 8 TERMS

0

1666230000

1666230000

Weidmuller

PLATE MTG DSUB SZ4 PLAST 2X25POS

0

1664330000

1664330000

Weidmuller

PLATE COVER SIZE 2 PLASTIC GRAY

0

1777730000

1777730000

Weidmuller

CONN PLUG BLANK M16 BRASS STD

0

0295060000

0295060000

Weidmuller

PLUG BLANKING PLASTIC PG 16

125

1665620000

1665620000

Weidmuller

HDC-HB-16-DBP

0

7940111831

7940111831

Weidmuller

KIT, FRONTCOM VARIO SINGE FRAME,

6

7940000246

7940000246

Weidmuller

PROPORT 9PIN D-SUB+8 PIN F D

0

0521600000

0521600000

Weidmuller

PLUG BLANKING BRASS PG 7

0

7940005660

7940005660

Weidmuller

PROPORT AC RJ45 CAT5 DB9 F-F

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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