Heavy Duty Connectors - Housings, Hoods, Bases

Image Part Number Description / PDF Quantity Rfq
1204800000

1204800000

Weidmuller

CONN HOOD SIDE ENTRY SZ4 PG16

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1222700000

1222700000

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CONN HOOD SIDE ENTRY SZ12 PG36

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1664860000

1664860000

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CONN HOOD TOP ENTRY SZ5 PG21

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1652670000

1652670000

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CONN HOOD TOP ENTRY SZ3 PG21

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1654910000

1654910000

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CONN HOOD TOP ENTRY SZ4 PG29

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1787320000

1787320000

Weidmuller

CONN HOOD TOP ENTRY SZ4 M25

0

1805930000

1805930000

Weidmuller

CONN HOOD SIDE ENTRY SZ3 M20

0

1666380000

1666380000

Weidmuller

CONN HOOD TOP ENTRY SZ7 PG29

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1654890000

1654890000

Weidmuller

CONN HOOD TOP ENTRY SZ4 PG21

0

1223500000

1223500000

Weidmuller

CONN BASE SIDE ENTRY SZ12 PG29

0

1655230000

1655230000

Weidmuller

CONN HOOD SIDE ENTRY SZ4 PG16

0

1657660000

1657660000

Weidmuller

CONN BASE SIDE ENTRY SZ6 PG21

0

1218500000

1218500000

Weidmuller

CONN HOOD SIDE ENTRY SZ10 PG29

0

1656550000

1656550000

Weidmuller

CONN HOOD SIDE ENTRY SZ6 PG21

0

1579940000

1579940000

Weidmuller

CONN BASE BOTTOM ENTRY SZ6

0

1851910000

1851910000

Weidmuller

CONN HOOD SIDE/TOP SZ8 M16/25/32

0

1652590000

1652590000

Weidmuller

CONN HOOD SIDE ENTRY SZ3 PG21

0

1828480000

1828480000

Weidmuller

CONN BASE BOTTOM ENTRY SZ8

0

1654260000

1654260000

Weidmuller

CONN HOOD TOP ENTRY SZ4 PG16

0

1828490000

1828490000

Weidmuller

CONN BASE BOTTOM ENTRY SZ8

0

Heavy Duty Connectors - Housings, Hoods, Bases

1. Overview

Heavy duty connectors' housings, hoods, and bases are critical mechanical components designed to protect electrical connections in harsh environments. These elements provide structural support, environmental sealing, and safety shielding for connectors used in industrial, transportation, and energy systems. Their importance has grown with advancements in automation, renewable energy systems, and electric vehicle infrastructure.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Metallic HousingsHigh mechanical strength, EMI shielding, corrosion resistanceIndustrial control cabinets
Polymer HousingsLightweight, chemical resistance, UV stabilitySolar power inverters
Modular BasesInterchangeable mounting patterns, tool-less assemblyFactory automation systems
Explosion-proof HoodsPressure containment, flame path controlPetrochemical plant equipment

3. Structure and Composition

Typical construction includes: - Outer shell (die-cast aluminum, stainless steel, or reinforced thermoplastics) - Sealing interfaces (EPDM rubber gaskets, silicone O-rings) - Mounting features (din-rail clips, threaded inserts) - Cable entry systems (PG/NPT threaded ports) - Safety interlocks (mechanical keying systems)

4. Key Technical Specifications

ParameterImportance
IP68/IP69K ratingProtection against dust and high-pressure water ingress
Vibration resistance (MIL-STD-202)Reliability in transportation applications
Operating temperature (-40 C to +125 C)Performance in extreme climates
Material flammability (UL94 V-0)Safety compliance in electrical systems
EMI shielding effectiveness (40-100dB)Signal integrity preservation

5. Application Areas

  • Energy: Wind turbine converters, substation equipment
  • Transportation: Locomotive control systems, EV charging stations
  • Manufacturing: Robotic welding cells, CNC machinery
  • Infrastructure: Smart grid devices, outdoor telecom enclosures

6. Leading Manufacturers and Products

ManufacturerRepresentative Product
TE ConnectivityDEUTSCH DT series metal housings
Amphenol IndustrialSSX explosion-proof connector bodies
MolexMICRO-CLIK modular base systems
Weidm llerOMNIMATE PCB mounting bases

7. Selection Recommendations

Key considerations: - Environmental factors (temperature, chemical exposure) - Mechanical load requirements (cable strain relief capacity) - Regulatory compliance (ATEX, IECEx for hazardous locations) - Service accessibility (quick-disconnect features) - Cost lifecycle analysis (maintenance frequency impact)

8. Industry Trends

Emerging developments include: - Integration of smart sensors in connector housings - Development of bio-based polymer materials - Standardization of hybrid power/data connector modules - Adoption of additive manufacturing for complex geometries - Increased demand for hydrogen fuel cell infrastructure compatibility

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