Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
3240664

3240664

Phoenix Contact

CONN FERRULE 18AWG GRAY

0

3200069

3200069

Phoenix Contact

CONN FERRULE 14AWG GRAY

735738200

3201534

3201534

Phoenix Contact

CONN FERRULE 18MM LENGTH BLACK

10700

3241125

3241125

Phoenix Contact

CONN FERRULE W TYPE 16AWG RED

0

3201026

3201026

Phoenix Contact

CONN FERRULE TWO X 8AWG RED

1001000

3200289

3200289

Phoenix Contact

CONN FERRULE DIN 14AWG SILVER

3635

3200263

3200263

Phoenix Contact

CONN FERRULE DIN 16AWG SILVER

1379

3201152

3201152

Phoenix Contact

CONN FERRULE W TYPE 6AWG GREEN

27300

3200221

3200221

Phoenix Contact

CONN FERRULE DIN 18AWG SILVER

102

3201123

3201123

Phoenix Contact

CONN FERRULE DIN 20AWG ORANGE

5179

3200276

3200276

Phoenix Contact

CONN FERRULE DIN 16AWG SILVER

268045000

3203150

3203150

Phoenix Contact

CONN FERRULE 20AWG WHITE

426

3200577

3200577

Phoenix Contact

CONN FERRULE DIN 4AWG YELLOW

723900

3200250

3200250

Phoenix Contact

CONN FERRULE DIN 18AWG SILVER

99259000

3200205

3200205

Phoenix Contact

CONN FERRULE 14AWG GRAY

4342700

3201589

3201589

Phoenix Contact

CONN FERRULE 18AWG YELLOW

1000104000

3201110

3201110

Phoenix Contact

CONN FERRULE DIN 18AWG WHITE

43225500

3200315

3200315

Phoenix Contact

CONN FERRULE DIN 12AWG SILVER

1423

3201181

3201181

Phoenix Contact

CONN FERRULE 6AWG IVORY

120

3200399

3200399

Phoenix Contact

CONN FERRULE DIN 2AWG

190

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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