Heavy Duty Connectors - Housings, Hoods, Bases

Image Part Number Description / PDF Quantity Rfq
1787340000

1787340000

Weidmuller

CONN HOOD TOP ENTRY SZ4 M25

2

1788330000

1788330000

Weidmuller

CONN HOOD TOP ENTRY SZ12 M50

0

1787470000

1787470000

Weidmuller

CONN HOOD SIDE ENTRY SZ3 M32

3

1000600000

1000600000

Weidmuller

SL-SMT 3.5/04/90RF 1.5SN BK RL

0

1902670000

1902670000

Weidmuller

CONN BASE SIDE ENTRY SZ10 M32

0

1902990000

1902990000

Weidmuller

HDC 40D SBU 1M32G

0

1786870000

1786870000

Weidmuller

CONN HOOD TOP ENTRY SZ8 M25

0

1902650000

1902650000

Weidmuller

HDC 32B SDLU 1M32G

0

1788710000

1788710000

Weidmuller

CONN HOOD TOP ENTRY SZ5 M20

40

1788530000

1788530000

Weidmuller

CONN BASE SIDE ENTRY SZ1 M20

0

1788050000

1788050000

Weidmuller

CONN BASE SIDE ENTRY SZ7 M32

0

1787680000

1787680000

Weidmuller

CONN BASE SIDE ENTRY SZ4 M20

0

1658410000

1658410000

Weidmuller

CONN BASE SIDE ENTRY SZ6 PG29

20

8948920000

8948920000

Weidmuller

HDC 10B KLU 1PG21G-NPT3/4

0

1666550000

1666550000

Weidmuller

CONN BASE SIDE ENTRY SZ7 PG21

0

1000630000

1000630000

Weidmuller

SL-SMT 3.50/07/90RF 1.5SN BK B

0

1788650000

1788650000

Weidmuller

CONN BASE SIDE ENTRY SZ2 M25

0

1417520000

1417520000

Weidmuller

HDC 32B ADLU CS

0

1788190000

1788190000

Weidmuller

CONN HOOD SIDE ENTRY SZ6 M25

2

1656840000

1656840000

Weidmuller

CONN BASE SIDE ENTRY SZ6 PG29

27

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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