GT-400 copper connecting tube

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GT-400 copper connecting tube

GT-400 copper connecting tube

(1 đánh giá)

Đầu nối ống đồng GT-400

The GT-400 copper connecting tube is a straight through-type connector used to join two copper cable ends by compression. This model has an outer diameter D of 34 mm, an inner diameter d of 26 mm and an overall length L of 130 mm. Its tubular construction allows the two prepared conductors to be inserted from opposite ends before compression with a compatible crimping tool and die.

Specification Value
Model GT-400
Product type Straight copper connecting tube
Material Copper
Outer diameter D 34 mm
Inner diameter d 26 mm
Overall length L 130 mm

Before ordering, check the actual conductor dimensions, cable material, die model and operating range of the crimping tool. Do not select the connector only by the cable’s overall outside diameter. Send the model, quantity and cable details to Truong Phat for specification checking and quotation support.

When two copper cable sections must be joined in a straight line, the connector should be checked for bore size, overall length and compatibility with the selected crimping system. The GT-400 copper connecting tube is a straight through-type tube that accepts one conductor from each end before compression. According to the supplied catalog, the GT-400 has a 34 mm outer diameter, a 26 mm inner diameter and a total length of 130 mm.

What is the GT-400 copper connecting tube used for?

The GT-400 belongs to the straight copper cable connector category. Unlike a bolted cable lug, which includes a palm and a bolt hole for connection to equipment terminals, this product consists of a continuous tube designed to join two cable ends along the same conductor route.

During installation, the two cable ends are prepared separately and inserted from opposite sides of the tube. The connector is then compressed with a compatible tool and die. Its function is to provide mechanical retention and electrical contact at the joint. The quality of the completed connection depends on selecting the correct connector, conductor material, die set and installation procedure.

The GT-400 is not designed to be bolted directly to a busbar, circuit breaker or equipment terminal. Where a bolted connection is required, a suitable cable lug should be selected instead of a straight connecting tube.

GT-400 dimensions and product specifications

Symbol Description Value
Cat.No. Catalog number GT-400
D Outer diameter 34 mm
d Inner diameter 26 mm
L Overall length 130 mm
Construction Tube configuration Straight through type
Material Tube material Copper
Installation method Connection method Compression with a compatible tool and die

In the catalog drawing, D indicates the outside diameter, d indicates the inside diameter and L indicates the total product length. The 26 mm inner diameter is the tube bore dimension. It should not automatically be treated as the actual conductor diameter of every cable associated with the GT-400 model designation.

Construction and suitable applications

The connector has a hollow cylindrical body with open ends. This design is suitable for straight-line cable joints where two conductor ends need to be connected along the same route, including cable extension work, replacement of a damaged cable section or installation of an intermediate joint.

  • The open-ended tube accepts conductors from two opposite directions.
  • The 130 mm overall length provides the tube body required for compression according to the applicable tool and installation procedure.
  • The 34 mm outside diameter should be checked against the die set, installation space and final insulation system.
  • The 26 mm bore must be compared with the actual conductor dimensions after insulation removal.
  • The copper tube is intended for use with compatible copper conductors.

The GT-400 copper connecting tube should only be installed when the conductor material, conductor dimensions and compression system are compatible. A standard copper tube must not be used to connect an aluminium conductor directly unless an approved transition connector is specified for that application.

Checks to complete before selecting the GT-400

Confirm the conductor material

The catalog identifies the product as a copper connecting tube. The first step is therefore to confirm that the cables being joined have copper conductors. Aluminium conductors or copper-to-aluminium transition joints require a connector specifically designed and verified for those materials.

Measure the conductor after removing insulation

The actual conductor dimensions should be checked against the 26 mm inner diameter. Do not use the outside diameter of the insulated cable as the basis for selection. Nominal conductor cross-section also does not necessarily equal the conductor’s actual diameter because conductor construction and strand arrangement may vary.

Verify the crimping tool and die

Before ordering, provide the crimping tool model, die reference or operating range whenever available. The die must be compatible with both the connector and the conductor. Crimping force, number of compression points and compression sequence cannot be determined solely from the D, d and L dimensions shown in the catalog.

Check installation clearance

The 34 mm outside diameter and 130 mm overall length affect the working space required for the connector, crimping head and final insulation. The installation area should provide adequate clearance for the tube, the tool and the selected insulation or mechanical protection system.

Preparation, crimping and safety guidance

  1. Disconnect and isolate the electrical supply, then verify that the circuit is de-energised before starting work.
  2. Confirm the GT-400 model and inspect the tube for visible deformation or damage.
  3. Verify that both conductor ends are compatible in material, construction and dimensions.
  4. Prepare the cable ends with suitable tools without cutting, scoring or excessively deforming the conductor strands.
  5. Clean the conductor surfaces and prevent dirt or foreign material from remaining between the conductor and the tube bore.
  6. Insert both conductor ends into the connector according to the approved installation procedure.
  7. Fit the correct die to the crimping tool and perform the compression according to the tool manufacturer’s instructions or the approved work procedure.
  8. Inspect the completed joint for conductor movement, misalignment, cracking or other visible defects.
  9. Apply an insulation and mechanical protection system suitable for the cable and operating environment.

The supplied catalog does not specify crimping force, die reference, number of compression points or insulation stripping length. These values should not be estimated from general practice because they may vary according to the cable construction, die profile and crimping equipment.

Frequently asked questions about the GT-400

Is the GT-400 a bolted cable lug?

No. It is a straight through-type connecting tube used to join two conductor ends. It does not have a palm or bolt hole for attachment to an equipment terminal.

What are the main dimensions of the GT-400?

According to the GT-400 row in the catalog, the outer diameter D is 34 mm, the inner diameter d is 26 mm and the overall length L is 130 mm.

Can the connector be selected only from the GT-400 model name?

No. The conductor material, actual conductor dimensions, cable construction, die set and crimping tool range should also be checked. The supplied catalog does not separately confirm the compatible cable cross-section.

Can the GT-400 be used directly on aluminium cable?

A standard copper connecting tube should not be used to join an aluminium conductor directly. Aluminium or copper-to-aluminium joints require a connector designed for the applicable conductor materials.

How many compression points are required?

The catalog does not specify the number of compression points. Their number and position must follow the instructions for the connector, die set, crimping tool or an approved installation procedure. They should not be estimated solely from the 130 mm tube length.

What information is required for a quotation?

Please provide the GT-400 model, quantity, conductor material, cable details, dimensions to be checked, crimping tool or die information and delivery location. These details support specification verification before quotation.

Request a quotation for the GT-400 copper connecting tube

Pricing depends on order quantity, delivery requirements and any requested documentation at the time of enquiry. To receive a quotation for the GT-400 copper connecting tube, send Truong Phat the model, required quantity and cable information. The sales team will check the specified dimensions of D 34 mm, d 26 mm and L 130 mm before confirming the supply proposal.


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