Terminal Blocks - Accessories

Terminal Blocks - Accessories - Wire Ferrules

Part Number	Description / PDF	Quantity
FSD85-16-L Panduit Corporation	CONN FERRULE DIN 4AWG YELLOW	131115750
FSD81-10-D Panduit Corporation	CONN FERRULE DIN 12AWG GRAY	855321000
F82-15-M Panduit Corporation	CONN FERRULE DIN 10AWG	20964000
F89-25-L Panduit Corporation	CONN FERRULE 2/0AWG	1301900
FSD90-25-Q Panduit Corporation	CONN FERRULE DIN 3/0AWG RED	59825
FSD78-10-D Panduit Corporation	CONN FERRULE DIN 16AWG BLACK	203500
FSD91-27-Q Panduit Corporation	CONN FERRULE DIN 250 MCM BLUE	52700
F84-32-TL Panduit Corporation	CONN FERRULE DIN 6AWG	1018
F73-7-M Panduit Corporation	CONN FERRULE DIN 24AWG	33889000
FSD82-18-C Panduit Corporation	CONN FERRULE DIN 10AWG YELLOW	611
F74-7-M Panduit Corporation	CONN FERRULE DIN 22-24AWG	347420000
FSD80-8-KD6 Panduit Corporation	CONN FERRULE DIN 14AWG BLUE	904
FTD75-8-D Panduit Corporation	CONN FERRULE DIN TWO X 22AWG WHT	2147483647
F75-6-M Panduit Corporation	CONN FERRULE DIN 22AWG	33042000
FSD81-12-C Panduit Corporation	CONN FERRULE DIN 12AWG GRAY	1761298100
F81-15-M Panduit Corporation	CONN FERRULE DIN 12AWG	162946000
F82-20-M Panduit Corporation	CONN FERRULE DIN 10AWG	48000
FSD78-12-D Panduit Corporation	CONN FERRULE DIN 16AWG BLACK	2147483647
FSDXL78-10-C Panduit Corporation	CONN FERRULE DIN 16AWG BLACK	750800
F78-8-M Panduit Corporation	CONN FERRULE DIN 16AWG	2147483647

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

Type	Functional Features	Application Examples
Open Barrel Ferrules	Allow partial insertion of wires; suitable for frequent disassembly	Control panels in manufacturing systems
Insulated Ferrules	Include plastic sleeves for additional safety and insulation	Medical equipment and HVAC systems
Double-Crimped Ferrules	Provide dual compression points for enhanced mechanical strength	Automotive wiring harnesses
Multi-Wire Ferrules	Accommodate multiple wires in a single termination point	Power 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

Parameter	Significance
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

Manufacturer	Representative Product
Phoenix Contact	MAU-SET series ferrules with push-in technology
Weidm ller	KLUEGO color-coded ferrules for rail applications
TE Connectivity	Dynamic ferrules for automotive vibration environments
WAGO	TOPJOB 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