Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
11121040

11121040

American Electrical, Inc.

CONN FERRULE DIN 12AWG GRAY

15532

13101025

13101025

American Electrical, Inc.

CONN FERRULE DIN TWO X 14AWG BLU

4972

11221250

11221250

American Electrical, Inc.

CONN FERRULE DIN 4AWG YELLOW

130

12810100

12810100

American Electrical, Inc.

CONN FERRULE DIN 18AWG

6957

13121040

13121040

American Electrical, Inc.

CONN FERRULE DIN TWO X 12AWG GRY

4769

1181050

1181050

American Electrical, Inc.

CONN FERRULE DIN 20-24AWG WHITE

72251

1381010

1381010

American Electrical, Inc.

CONN FERRULE DIN TWO X 18AWG RED

25326

1181075

1181075

American Electrical, Inc.

CONN FERRULE DIN 20-22AWG GRAY

168205

1161050

1161050

American Electrical, Inc.

CONN FERRULE DIN 20-24AWG WHITE

33567

1181015

1181015

American Electrical, Inc.

CONN FERRULE DIN 16AWG BLACK

73696

1181010

1181010

American Electrical, Inc.

CONN FERRULE DIN 18AWG RED

166645

1225170

1225170

American Electrical, Inc.

CONN FERRULE DIN 2/0AWG

0

1182034

1182034

American Electrical, Inc.

CONN FERRULE W TYP 22-24AWG TURQ

2328

11161250

11161250

American Electrical, Inc.

CONN FERRULE DIN 4AWG YELLOW

1120

101050

101050

American Electrical, Inc.

CONN FERRULE DIN 22AWG WHITE

6107

13141100

13141100

American Electrical, Inc.

CONN FERRULE DIN TWO X 8AWG RED

1757

1162075

1162075

American Electrical, Inc.

CONN FERRULE W TYPE 20-22AWG WHT

7088

121510600

121510600

American Electrical, Inc.

CONN FERRULE DIN 10AWG

800

121210150

121210150

American Electrical, Inc.

CONN FERRULE DIN 16AWG

1032

11181015

11181015

American Electrical, Inc.

CONN FERRULE DIN 16AWG BLACK

1637

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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