Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
3200810

3200810

Phoenix Contact

CONN FERRULE TWO X 18AWG RED

502459000

3202588

3202588

Phoenix Contact

CONN FERRULE DIN 16AWG SILVER

660

3200441

3200441

Phoenix Contact

CONN FERRULE DIN 2AWG RED

891450

3200218

3200218

Phoenix Contact

CONN FERRULE DIN 20AWG SILVER

2147483647

3200551

3200551

Phoenix Contact

CONN FERRULE DIN 8AWG RED

358521800

3200991

3200991

Phoenix Contact

CONN FERRULE DIN TWO X 16AWG BLK

549

3201592

3201592

Phoenix Contact

CONN FERRULE 16AWG RED

2287

3200535

3200535

Phoenix Contact

CONN FERRULE DIN/W TYP 12AWG GRY

1295634900

1208869

1208869

Phoenix Contact

CONN FERRULE 18AWG RED

348

3203066

3203066

Phoenix Contact

CONN FERRULE 22AWG TURQUOISE

2147483647

3200878

3200878

Phoenix Contact

CONN FERRULE TWO X 14AWG BLUE

4118800

3200438

3200438

Phoenix Contact

CONN FERRULE 12AWG ORANGE

7834100

3200111

3200111

Phoenix Contact

CONN FERRULE 10AWG GREEN

400

3200519

3200519

Phoenix Contact

CONN FERRULE DIN 18AWG GRAY

2147483647

3200988

3200988

Phoenix Contact

CONN FERRULE DIN TWO X 18AWG RED

331650600

3200412

3200412

Phoenix Contact

CONN FERRULE DIN 4AWG BLACK

50

3200302

3200302

Phoenix Contact

CONN FERRULE DIN 12AWG SILVER

0

3009202

3009202

Phoenix Contact

CONN FERRULE DIN 22AWG SILVER

43841000

3200755

3200755

Phoenix Contact

CONN FERRULE DIN 16AWG BLACK

84671500

3201327

3201327

Phoenix Contact

CONN FERRULE W TYPE 18AWG YELLOW

0

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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