Heavy Duty Connectors - Housings, Hoods, Bases

Image Part Number Description / PDF Quantity Rfq
1788520000

1788520000

Weidmuller

CONN HOOD TOP ENTRY SZ1 M20

24832

1787200000

1787200000

Weidmuller

CONN HOOD CPLNG BOTTOM SZ6 M25

10

1081290000

1081290000

Weidmuller

CONN BASE SIDE ENTRY SZ4 PG29

0

1652470000

1652470000

Weidmuller

CONN HOOD TOP ENTRY SZ1 PG11

82

1003060000

1003060000

Weidmuller

CONN BASE SIDE ENTRY SZHQ

0

1787900000

1787900000

Weidmuller

CONN BASE SIDE ENTRY SZ8 M25

0

1208600000

1208600000

Weidmuller

CONN BASE BOTTOM ENTRY SZ6

71

1081320000

1081320000

Weidmuller

CONN BASE SIDE ENTRY SZ4 M32

0

1081510000

1081510000

Weidmuller

CONN BASE BOTTOM ENTRY SZ3 IP68

0

1670530000

1670530000

Weidmuller

CONN HOOD SIDE ENTRY SZ3 PG13.5

5441

1652580000

1652580000

Weidmuller

CONN HOOD SIDE ENTRY SZ3 PG29

35

1652980000

1652980000

Weidmuller

CONN BASE SIDE ENTRY SZ3 PG16

7

1081540000

1081540000

Weidmuller

CONN BASE BOTTOM ENTRY SZ8 IP68

8

1650860000

1650860000

Weidmuller

CONN HOOD SIDE ENTRY SZ12 PG36

20

1787290000

1787290000

Weidmuller

CONN HOOD TOP ENTRY SZ4 M32

640

1652700000

1652700000

Weidmuller

CONN HOOD TOP ENTRY SZ3 PG29

0

1657310000

1657310000

Weidmuller

CONN HOOD CPLNG BOTTOM SZ6 PG21

163

1003070000

1003070000

Weidmuller

CONN HOOD TOP ENTRY SZHQ PG16

0

1787750000

1787750000

Weidmuller

CONN HOOD SIDE ENTRY SZ8 M32

3677

1654810000

1654810000

Weidmuller

CONN HOOD SIDE ENTRY SZ4 PG16

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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