Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
11102010

11102010

American Electrical, Inc.

CONN FERRULE W TYPE 18AWG YELLOW

4185

1162015

1162015

American Electrical, Inc.

CONN FERRULE W TYPE 16AWG RED

3340

1182010

1182010

American Electrical, Inc.

CONN FERRULE W TYPE 18AWG YELLOW

30896

11102015

11102015

American Electrical, Inc.

CONN FERRULE W TYPE 16AWG RED

1200

11162250

11162250

American Electrical, Inc.

CONN FERRULE W TYPE 4AWG BROWN

391

1182014

1182014

American Electrical, Inc.

CONN FERRULE W TYPE 26-28AWG GRY

49

1181034

1181034

American Electrical, Inc.

CONN FERRULE DIN 22-24AWG TURQ

31227

11121075

11121075

American Electrical, Inc.

CONN FERRULE DIN 20-22AWG GRAY

30575

11182250

11182250

American Electrical, Inc.

CONN FERRULE W TYPE 4AWG BROWN

203

102100

102100

American Electrical, Inc.

CONN FERRULE W TYPE 18AWG YELLOW

0

12610100

12610100

American Electrical, Inc.

CONN FERRULE DIN 18AWG

51106

13142100

13142100

American Electrical, Inc.

CONN FERRULE W TYPE 2X8AWG IVORY

0

13122040

13122040

American Electrical, Inc.

CONN FERRULE W TYPE 2X12AWG GRAY

215

11181060

11181060

American Electrical, Inc.

CONN FERRULE DIN 10AWG YELLOW

14870

13131025

13131025

American Electrical, Inc.

CONN FERRULE DIN TWO X 14AWG BLU

7212

1218150

1218150

American Electrical, Inc.

CONN FERRULE DIN 1AWG

828

1161014

1161014

American Electrical, Inc.

CONN FERRULE DIN 26-28AWG GRAY

56403

MC2250

MC2250

American Electrical, Inc.

CONN FERRULE W TYPE 14AWG BLUE

1000

12510025

12510025

American Electrical, Inc.

CONN FERRULE DIN 24AWG

13596

MC1075

MC1075

American Electrical, Inc.

CONN FERRULE DIN 20AWG GRAY

2000

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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