Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
3201084

3201084

Phoenix Contact

CONN FERRULE W TYPE 4AWG BROWN

187

3201932

3201932

Phoenix Contact

CONN FERRULE 12AWG GRAY

84

3201482

3201482

Phoenix Contact

CONN FERRULE DIN 16AWG BLACK

314442600

3200920

3200920

Phoenix Contact

CONN FERRULE DIN/W TYP 14AWG BLU

322

3201330

3201330

Phoenix Contact

CONN FERRULE DIN 6AWG GREEN

121300

3200043

3200043

Phoenix Contact

CONN FERRULE DIN 16AWG BLACK

2147483647

3200975

3200975

Phoenix Contact

CONN FERRULE TWO X 18AWG GRAY

5396600

3201372

3201372

Phoenix Contact

CONN FERRULE 18AWG GRAY

705114000

3201107

3201107

Phoenix Contact

CONN FERRULE DIN 10AWG BLACK

1675923300

3200823

3200823

Phoenix Contact

CONN FERRULE TWO X 16AWG BLACK

632220900

3200247

3200247

Phoenix Contact

CONN FERRULE DIN 18AWG SILVER

1874

3201068

3201068

Phoenix Contact

CONN FERRULE W TYPE 8AWG IVORY

7100

3200548

3200548

Phoenix Contact

CONN FERRULE DIN 10AWG YELLOW

2951

1200106

1200106

Phoenix Contact

CONN FERRULE DIN 18AWG RED

2147483647

3200108

3200108

Phoenix Contact

CONN FERRULE 10AWG GREEN

346012500

3200454

3200454

Phoenix Contact

CONN FERRULE DIN 1/0AWG BLUE

1893250

3200140

3200140

Phoenix Contact

CONN FERRULE DIN 6AWG WHITE

305

3201369

3201369

Phoenix Contact

CONN FERRULE 20AWG WHITE

22000

3200904

3200904

Phoenix Contact

CONN FERRULE DIN 18AWG RED

162557000

3200344

3200344

Phoenix Contact

CONN FERRULE DIN 8AWG SILVER

90

Terminal Blocks - Accessories - Wire Ferrules

1. Overview

Wire ferrules are tubular connectors used to terminate stranded wires, ensuring reliable electrical connections in terminal blocks. They compress the wire strands into a solid ring or eyelet, preventing fraying and improving conductivity. These components are critical in industrial automation, power distribution, and control systems where vibration resistance and long-term stability are essential.

2. Main Types & Functional Classification

TypeFunctional FeaturesApplication Examples
Open Barrel FerrulesAllow partial insertion of wires; suitable for frequent disassemblyControl panels in manufacturing systems
Insulated FerrulesInclude plastic sleeves for additional safety and insulationMedical equipment and HVAC systems
Double-Crimped FerrulesProvide dual compression points for enhanced mechanical strengthAutomotive wiring harnesses
Multi-Wire FerrulesAccommodate multiple wires in a single termination pointPower distribution boxes

3. Structure & Composition

Wire ferrules typically consist of: - Conductive Body: Made from electrolytic copper or brass for optimal conductivity - Surface Coating: Tin-plated for corrosion resistance and solderability - Insulation Sleeve: Thermoplastic material (e.g., PA66) for insulated types - Barrel Design: Precision-engineered inner diameter matching specific wire gauges

4. Key Technical Specifications

ParameterSignificance
Conductor Cross-Section Range (0.2-6 mm )Determines current-carrying capacity and wire compatibility
Rated Current (5-30 A)Defines maximum operational current under standard conditions
Crimping Force (50-200 N)Affects connection reliability and cold welding prevention
Temperature Range (-40 C to +120 C)Specifies operational limits in different environments
Material Hardness (60-90 HV)Influences durability and resistance to deformation

5. Application Fields

Primary industries include: - Industrial automation (PLC control cabinets, CNC machines) - Energy systems (solar inverters, wind turbine controllers) - Transportation (railway signaling systems, commercial vehicle wiring) - Building technology (HVAC systems, smart grid interfaces)

6. Leading Manufacturers & Products

ManufacturerRepresentative Product
Phoenix ContactMAU-SET series ferrules with push-in technology
Weidm llerKLUEGO color-coded ferrules for rail applications
TE ConnectivityDynamic ferrules for automotive vibration environments
WAGOTOPJOB S ferrules with integrated test points

7. Selection Recommendations

Key considerations: - Match ferrule inner diameter to stripped wire length (typically 0.5-1.0 mm tolerance) - Select material based on environmental factors (e.g., tin-plated for humid environments) - Consider insulation requirements per IEC 61558-1 standards - Verify compatibility with terminal block clamping mechanisms - For high-vibration applications, choose double-crimped designs

8. Industry Trends

Current developments include: - Miniaturization for PCB-mounted terminal blocks (down to 2.5 mm pitch) - Integration with smart diagnostic systems (e.g., temperature-sensing ferrules) - Adoption of halogen-free materials for improved fire safety - Development of hybrid ferrules combining power and signal transmission - Increased use of automated crimping systems in production lines

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