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Insulated Ring Terminals

  • insulated ring type lugs
  • ring type insulated cable lugs
  • insulated terminal lugs
  • insulated ring lugs
  • insulated lugs types
  • insulated cable lugs sizes
  • insulated ring type lugs
  • ring type insulated cable lugs
  • insulated terminal lugs
  • insulated ring lugs
  • insulated lugs types
  • insulated cable lugs sizes
  • Maximum electrical rating of insulated ring terminal: 600volts

  • Maximum temperature of insulated ring: 75℃

  • Terminal Body of insulated ring lugs: The terminal body of ring type insulated cable lugs is made of  Brass or Copper

  • Plating of ring terminal insulated: Tin plated

  • Insulation material of terminal ring connectors: vinyl (PVC)

We also provide some other prodects with some alike functions, like insulated flag terminal crimping tool and  female disconnect wire connectors.

Drawings of Insulated Ring Terminals

Drawings of Insulated Ring Terminals

Technical Specification Of Insulated Ring Terminals

Item NO.UNCscrew dia.Dimension
d2(mm)B(mm)L(mm)F(mm)H(mm)D φ(mm)
Cable size:0.5~1.5mm2(A.W.G.22~16)    max current:Imax=19A      thickness:0.75mm
RV1.25-3#43.25.717.84.95104.30.5~1.5mm²           (22-16):Imax=19ARed
Cable size: 1.5~2.5mm2(A.W.G.16~14)    max current:Imax=27A      thickness:0.8mm
RV2-3#43.26.617.84.3104.91.5~2.5mm² (16~14):Imax=27ABlue
Cable size: 2.5~4mm2(A.W.G.14~12)    max current:Imax=37A     thickness:1.0mm
RV3.5-4#84.3824.57.712.56.22.5~4mm² (14~12):Imax=37ABlack
Cable size: 4~6mm2(A.W.G.12~10)   max current:Imax=18A        thickness:1.0mm
RV5.5-3.5#²          (12~10) :Imax=48AYellow

Terminal Types and Uses

Vinyl/PVC Terminals:Vinyl/PVC terminals are electrical connectors covered in a layer of vinyl or polyvinyl chloride. They come in various sizes and shapes, making them versatile for different applications.

Electrical Wiring:

Ideal for connecting wires in electrical systems.

Resistant to moisture, chemicals, and abrasion.

Automotive Applications:

Widely used in vehicles for connecting electrical components.

PVC provides protection against harsh conditions.

Nylon Terminals:Nylon terminals are connectors made with nylon insulation. This material offers excellent durability and insulation properties.

Heavy-Duty Connections:

Suited for high-stress environments.

Commonly used in industrial settings and heavy machinery.

Moisture Resistance:

Nylon's resistance to moisture makes these terminals suitable for outdoor applications.

Prevents corrosion and ensures a secure connection.

Heat Shrink Terminals: Heat shrink terminals have a plastic outer layer that shrinks when heat is applied, creating a tight seal around the wire.

Sealing and Insulating:

Perfect for creating a watertight seal.

Provides insulation in areas with exposure to extreme temperatures.

Wire Protection:

Guards against abrasion and physical damage.

Commonly used in marine and automotive wiring.

Hont Insulated Ring Terminals Advantages

Enhanced Safety:

The primary advantage of insulated ring terminals is safety.

The insulation layer provides a barrier, preventing accidental contact with exposed wires.

Reduces the risk of electrical shocks and short circuits.

Prevention of Short Circuits:

The insulation layer acts as a safeguard against short circuits.

Minimizes the chance of wires coming into contact with each other and causing electrical malfunctions.

Corrosion Resistance:

Insulated ring terminals often have coatings that resist corrosion.

Suitable for environments where moisture or harsh conditions could affect the connections.

Durability in Harsh Environments:

Designed to withstand challenging conditions.

Ideal for applications where the terminals may be exposed to extreme temperatures, chemicals, or vibrations.

Ease of Identification:

Insulation is often color-coded, aiding easy identification of wire sizes.

Facilitates organized and efficient installation, reducing the chances of errors.

Insulated Ring Terminals VS Non Insulated Ring Terminals

Insulated Ring Terminals Advantages:

Enhanced Safety:

Insulation layer provides a barrier, reducing the risk of electrical shocks and short circuits.

Ideal for applications where safety is a top priority.

Prevention of Short Circuits:

Acts as a safeguard against wires coming into contact, minimizing the risk of short circuits.

Offers added protection in environments prone to electrical malfunctions.

Corrosion Resistance:

Often coated to resist corrosion, making them suitable for harsh conditions.

Ideal for installations exposed to moisture or corrosive substances.

Ease of Identification:

Color-coded insulation aids in quick identification of wire sizes.

Facilitates organized installations, reducing the chances of errors.

Durability in Harsh Environments:

Designed to withstand challenging conditions, including extreme temperatures and vibrations.

Ensures longevity and reliability in diverse environments.

Non-Insulated Ring Terminals Advantages:


Typically more budget-friendly compared to insulated counterparts.

Ideal for projects with tight budget constraints.

Simple Installation:

Straightforward installation process without dealing with insulation layers.

Quick and easy connections, making them suitable for simple applications.

Compact Design:

Non-insulated terminals are often more compact.

Useful in situations where space is limited.


Suitable for a broad range of applications where insulation may not be a critical factor.

Offers flexibility in less demanding environments.

Ring vs Spade Terminals

Ring Terminals

Ring Shape:

As the name suggests, ring terminals have a circular shape with a hole in the center.

Designed to be secured to a terminal post or screw.

Secure Connection:

Offers a secure and stable connection.

Ideal for applications where vibration or movement is a consideration.


Available in various sizes to accommodate different wire gauges.

Versatile for a wide range of applications, from automotive to home wiring.

Ease of Use:

Easy to install by slipping the ring over a terminal post and securing it with a nut or screw.

Provides a reliable and long-lasting connection.

Spade Terminals

Flat, Forked Shape:

Spade terminals have a flat, forked shape resembling a spade.

The forked end is designed to be inserted under a screw or secured to a terminal.

Quick Connections:

Known for their ease of use and quick connections.

Suitable for applications where frequent disconnection is necessary.

Space Efficiency:

The flat design allows for space-efficient connections, making them suitable for tight spaces.

Often preferred in situations with limited room for bulkier ring terminals.

Variety of Sizes:

Like ring terminals, spade terminals come in various sizes to match different wire gauges.

Versatile for multiple applications, especially where space is a consideration.

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