Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
3200742

3200742

Phoenix Contact

CONN FERRULE DIN 18AWG RED

129865400

3200700

3200700

Phoenix Contact

CONN FERRULE DIN 4AWG YELLOW

1550

3200331

3200331

Phoenix Contact

CONN FERRULE DIN 8AWG SILVER

336

3202892

3202892

Phoenix Contact

CONN FERRULE 16AWG BLACK

217

3203053

3203053

Phoenix Contact

CONN FERRULE 22AWG TURQUOISE

1984659700

3201408

3201408

Phoenix Contact

CONN FERRULE 14AWG BLUE

500120000

3203024

3203024

Phoenix Contact

CONN FERRULE 24AWG YELLOW

3658

3200328

3200328

Phoenix Contact

CONN FERRULE DIN 10AWG SILVER

152224500

3201097

3201097

Phoenix Contact

CONN FERRULE DIN 18AWG YELLOW

739530200

3200959

3200959

Phoenix Contact

CONN FERRULE DIN 12AWG GRAY

396871600

1200105

1200105

Phoenix Contact

CONN FERRULE DIN 18AWG GRAY

42428500

3240669

3240669

Phoenix Contact

CONN FERRULE TWO X 14AWG GRAY

0

1208966

1208966

Phoenix Contact

CONN FERRULE 20AWG WHITE

495

3200409

3200409

Phoenix Contact

CONN FERRULE DIN 2AWG SILVER

105

3200027

3200027

Phoenix Contact

CONN FERRULE 18AWG BLUE

440022900

3240679

3240679

Phoenix Contact

CONN FERRULE AI TWIN 2X1-12 RED

5826900

3200849

3200849

Phoenix Contact

CONN FERRULE DIN 18AWG GRAY

110613200

3203309

3203309

Phoenix Contact

CONN FERRULE 15MM LENGTH WHITE

2455800

3200564

3200564

Phoenix Contact

CONN FERRULE DIN 6AWG BLUE

33853500

3201288

3201288

Phoenix Contact

CONN FERRULE DIN 18AWG GRAY

3305

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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