Terminal Blocks - Accessories - Wire Ferrules

Image Part Number Description / PDF Quantity Rfq
F86-25-C

F86-25-C

Panduit Corporation

CONN FERRULE DIN 2AWG

37257600

12810050

12810050

American Electrical, Inc.

CONN FERRULE DIN 20AWG

57834

966066-5

966066-5

TE Connectivity AMP Connectors

CONN FERRULE DIN 26AWG GRAY

25956

101150

101150

American Electrical, Inc.

CONN FERRULE DIN 16AWG BLACK

0

9019070000

9019070000

Weidmuller

CONN FERRULE DIN 17AWG RED 500PC

14

3200687

3200687

Phoenix Contact

CONN FERRULE DIN 20AWG WHITE

24714000

3201013

3201013

Phoenix Contact

CONN FERRULE DIN TWO X 10AWG YLW

102115300

9026100000

9026100000

Weidmuller

CONN FERRULE 14AWG BLUE 1=500PC

35348

216-203

216-203

WAGO

FERRULE; SLEEVE FOR 1 MM / AWG 1

7958

1215125

1215125

American Electrical, Inc.

CONN FERRULE DIN 4AWG

2514

FSD78-8-K

FSD78-8-K

Panduit Corporation

CONN FERRULE DIN 16AWG BLACK

375119000

9026030000

9026030000

Weidmuller

CONN FERRULE 22AWG TURQS 500PC

158

3200014

3200014

Phoenix Contact

CONN FERRULE DIN 20AWG WHITE

50332

2-966067-0

2-966067-0

TE Connectivity AMP Connectors

CONN FERRULE DIN 11AWG GRAY

3019

11101050

11101050

American Electrical, Inc.

CONN FERRULE DIN 20-24AWG WHITE

14578

0409700000

0409700000

Weidmuller

CONN FERRULE 17AWG YLW 1=500PC

328

1182075

1182075

American Electrical, Inc.

CONN FERRULE W TYPE 20-22AWG WHT

0

3201848

3201848

Phoenix Contact

CONN FERRULE DIN 2/0AWG YELLOW

123

11121015

11121015

American Electrical, Inc.

CONN FERRULE DIN 16AWG BLACK

7818

11810025

11810025

American Electrical, Inc.

CONN FERRULE DIN 24-26AWG YELLOW

14684

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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