Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
3200933

3200933

Phoenix Contact

CONN FERRULE DIN TWO X 20AWG WHT

285942500

3200632

3200632

Phoenix Contact

CONN FERRULE 24AWG BLUE

14145200

3200137

3200137

Phoenix Contact

CONN FERRULE 8AWG BROWN

20

3200234

3200234

Phoenix Contact

CONN FERRULE DIN 18AWG SILVER

917122000

3200881

3200881

Phoenix Contact

CONN FERRULE DIN 20AWG WHITE

1739000

1200163

1200163

Phoenix Contact

CONN FERRULE DIN 18AWG BLUE

1033

3200687

3200687

Phoenix Contact

CONN FERRULE DIN 20AWG WHITE

24714000

3201013

3201013

Phoenix Contact

CONN FERRULE DIN TWO X 10AWG YLW

102115300

3200014

3200014

Phoenix Contact

CONN FERRULE DIN 20AWG WHITE

50332

3201848

3201848

Phoenix Contact

CONN FERRULE DIN 2/0AWG YELLOW

123

3200292

3200292

Phoenix Contact

CONN FERRULE DIN 14AWG SILVER

227225000

3202517

3202517

Phoenix Contact

CONN FERRULE DIN 18AWG

75

3200603

3200603

Phoenix Contact

CONN FERRULE DIN 10AWG YELLOW

2675400

3200056

3200056

Phoenix Contact

CONN FERRULE DIN 16AWG BLACK

77

3200593

3200593

Phoenix Contact

CONN FERRULE DIN 12AWG GRAY

0

3202481

3202481

Phoenix Contact

CONN FERRULE DIN 20AWG SILVER

0

3241126

3241126

Phoenix Contact

CONN FERRULE W TYPE 20AWG ORANGE

0

1208979

1208979

Phoenix Contact

CONN FERRULE 18AWG GRAY

215

3200894

3200894

Phoenix Contact

CONN FERRULE DIN 18AWG GRAY

1870

3200373

3200373

Phoenix Contact

CONN FERRULE DIN 4AWG SILVER

80

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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