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RD Series Insulated Ring Terminal | Pre-insulated Copper Sleeve Ring Wire Lug

RD insulated ring terminal, pre-insulated round ring cold crimp lug with solid copper sleeve for firm anti-drop electrical fixed wiring.
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RD Pre-insulated Round Ring Terminal Tin-plated Copper Sleeve Cold Crimp Terminal

Item Specification
Product Series RD Insulated Ring Terminal
Material High purity tin-plated copper sleeve + Flame retardant nylon insulation
Certification CE, RoHS, TUV, UL, REACH
Rated Voltage 600V
Working Temperature -40℃ ~ 105℃
Type Round ring pre-insulated cold crimp terminal
Wire Range 0.5mm² – 10mm²
Features Round ring fixed design, anti-drop firm locking, integrated copper sleeve, full insulation, easy bolt installation
Application Electrical cabinets, power switches, instruments, household appliances, machinery fixed wiring

Product Description

RD insulated ring terminal is classic round ring type pre-insulated wiring terminal with integrated solid copper sleeve. It adopts high-quality seamless copper tube crimping body, stable structure, good ductility and firm crimping effect.
Surface tin-plated treatment effectively prevents oxidation and corrosion, ensures low contact resistance and excellent conductive performance. Outer flame retardant insulating jacket provides full safety insulation, avoid electric leakage and electric shock risks.
Round ring head design can be firmly fixed on bolts, will not slip off or loosen during vibration, far more stable than fork terminals. Compact structure, complete specifications with color coding, easy matching and wiring arrangement, widely used for permanent fixed circuit connection, fully meet international export standards.

Product Features

  • Solid Integrated Copper Sleeve
    Thickened copper tube, strong compression resistance, durable and not easy to deform
  • Tin-plated Conductive Body
    High conductivity, rust-proof and anti-aging, long service life
  • Flame Retardant Pre-insulated Shell
    High temperature resistant, safe insulation, good electrical isolation
  • Round Ring Anti-drop Design
    Firm bolt fixation, anti-loose anti-slip, suitable for long-term fixed wiring
  • Smooth Inner Crimp Hole
    No burrs, protect wire strands without damage
  • Color Size Classification
    Different colors correspond to different wire gauges, convenient selection
  • Easy Installation & Maintenance
    Standard round hole, match all common specification bolts
  • Full International Certifications
    Meet global market sales and engineering wiring standards

Application Scope

  • Electrical control cabinet internal fixed wiring
  • Power distribution equipment terminal connection
  • Electromechanical equipment stable circuit wiring
  • Household electrical appliances internal bolt wiring
  • Instrument and meter circuit fixed connection
  • Outdoor equipment anti-loose safe wiring

Installation Steps

  1. Strip wire insulation to standard length
  2. Insert wire fully into copper sleeve of the terminal
  3. Crimp tightly with cold crimp pliers
  4. Pass bolt through round ring hole and tighten firmly

Precautions

  1. Select RD model according to wire cross-section and bolt diameter
  2. Avoid excessive crimping to prevent insulation rupture and copper sleeve deformation
  3. Ensure wire is fully inserted to guarantee good conductive contact
  4. Preferred choice for long-term fixed wiring, not suitable for frequent disassembly
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