Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
124011850

124011850

American Electrical, Inc.

CONN FERRULE DIN 350 MCM

100

122010250

122010250

American Electrical, Inc.

CONN FERRULE DIN 14AWG

1750

11183025

11183025

American Electrical, Inc.

CONN FERRULE T TYPE 14AWG GRAY

0

1163034

1163034

American Electrical, Inc.

CONN FERRULE T TYP 22-24AWG PINK

0

11123100

11123100

American Electrical, Inc.

CONN FERRULE T TYPE 8AWG RED

0

11183100

11183100

American Electrical, Inc.

CONN FERRULE T TYPE 8AWG BROWN

0

11181025

11181025

American Electrical, Inc.

CONN FERRULE DIN 14AWG BLUE

7073

11123010

11123010

American Electrical, Inc.

CONN FERRULE T TYPE 18AWG RED

0

11103075

11103075

American Electrical, Inc.

CONN FERRULE T TYPE 20-22AWG BLU

0

11183250

11183250

American Electrical, Inc.

CONN FERRULE T TYPE 4AWG BLACK

0

112721200

112721200

American Electrical, Inc.

CONN FERRULE W TYPE 4/0AWG BLUE

0

1183015

1183015

American Electrical, Inc.

CONN FERRULE T TYPE 16AWG BLACK

0

11271700

11271700

American Electrical, Inc.

CONN FERRULE DIN 2/0AWG YELLOW

0

11202500

11202500

American Electrical, Inc.

CONN FERRULE W TYPE 1AWG OLIVE

0

11203700

11203700

American Electrical, Inc.

CONN FERRULE T TYPE 1/0AWG YLW

0

11252500

11252500

American Electrical, Inc.

CONN FERRULE W TYPE 1AWG OLIVE

0

1225125

1225125

American Electrical, Inc.

CONN FERRULE DIN 4AWG

140

1220110

1220110

American Electrical, Inc.

CONN FERRULE DIN 8AWG

325

122010400

122010400

American Electrical, Inc.

CONN FERRULE DIN 12AWG

1700

11202700

11202700

American Electrical, Inc.

CONN FERRULE W TYPE 1/0AWG YLW

0

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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