Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
1218110

1218110

American Electrical, Inc.

CONN FERRULE DIN 8AWG

3788

1161015

1161015

American Electrical, Inc.

CONN FERRULE DIN 16AWG BLACK

8963

MC2050

MC2050

American Electrical, Inc.

CONN FERRULE W TYPE 22AWG ORANGE

1000

121210400

121210400

American Electrical, Inc.

CONN FERRULE DIN 12AWG

5292

121210075

121210075

American Electrical, Inc.

CONN FERRULE DIN 20AWG

0

1163014

1163014

American Electrical, Inc.

CONN FERRULE T TYPE 26-28AWG BRN

3948

11102075

11102075

American Electrical, Inc.

CONN FERRULE W TYPE 20-22AWG WHT

6945

12710034

12710034

American Electrical, Inc.

CONN FERRULE DIN 22AWG

17962

11101015

11101015

American Electrical, Inc.

CONN FERRULE DIN 16AWG BLACK

41335

1162050

1162050

American Electrical, Inc.

CONN FERRULE W TYPE 20-24AWG ORG

5959

121510150

121510150

American Electrical, Inc.

CONN FERRULE DIN 16AWG

614

121010150

121010150

American Electrical, Inc.

CONN FERRULE DIN 16AWG

5851

11610025

11610025

American Electrical, Inc.

CONN FERRULE DIN 24-26AWG YELLOW

13987

1182025

1182025

American Electrical, Inc.

CONN FERRULE W TYPE 14AWG BLUE

6288

11102050

11102050

American Electrical, Inc.

CONN FERRULE W TYPE 20-24AWG ORG

6218

11122040

11122040

American Electrical, Inc.

CONN FERRULE W TYPE 12AWG GRAY

1014

12510034

12510034

American Electrical, Inc.

CONN FERRULE DIN 22AWG

9021

11820025

11820025

American Electrical, Inc.

CONN FERRULE W TYPE 24-26AWG BLU

3669

11101075

11101075

American Electrical, Inc.

CONN FERRULE DIN 20-22AWG GRAY

11021

121810600

121810600

American Electrical, Inc.

CONN FERRULE DIN 10AWG

900

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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