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  3. Introduction

Electrical Contact

Electrical Contact refer to the electric contact terminal that mechanically opens, closes or accesses the electric circuits.

Economical, high quality contacts offered based on 30 years of expertise Electrical Contact
Electrical Contact are used in many industries such as electric and electronics, communication devices, automobiles, high voltage wiring and elevators where various switches, relays and magnetic switches are used. In recent years, these devices have become smaller or more powerful, requiring high reliability. We use the latest reliability test for contacts to meet consumer needs.
  • Personnel in charge: [In Korea] Deputy Manager Hyeongseok Kim 010-9982-4250     Email: hyskim@ltmetal.co.kr
                [International] Manager Wanjung Yun 010-5044-5215     Email: wjyun@ltmetal.co.kr

Characteristics required for Contact

  • 01 Safety and low contact resistance
  • 02 Good resistance to welding, and definite open/close
  • 03 Excellent electrical conductivity and heat conductivity
  • 04 Sure resistance to wear and no changeable to contact surface

Characteristics of LT Metal's Contacts

We are comprehensive contact manufacturing company to produce various types and shapes contacts customized to the demand of customers, from general Solid Type Contact to special product of high-tech Double Clad Contact, under perfect quality control based on 30 years experiences and technical cooperation with foreign company. Particularly, it surely satisfies your expectations that our complete guarantee for performance and continuous endeavors to develop more economical and high- powered contact.

Major Clients

Types of Electrical Contact

Overview of Electrical Contact Material Wire
Our Electrical Contact materials have materialized the customer satisfaction by providing good processing and high-fidelity materials through continuous development of NEW MATERIAL based on 30 years KNOW-HOW.
Electrical Contact Material Wire Classification by material | A detailed table is shown when the categorization by material is clicked.
Pt Group
Suitable to be used in low Electrical Contact capacity and requiring critical fidelity. No oxidation and no discoloration in any temperature.
Pt-lr Group
High reducing power for Arc, and no change of Electrical Contact resistance. The more contents of Lr, the more hardness of it, and no color change. Moving with high speed in big Electrical Contact power, and suitable for requiring high sensitivity.
Its low resistance and high corrosion resistance prevents the surface discoloration or generating oxides even though it is plated over low-load Electrical Contact or wireless silver Electrical Contact.
Au Group
A substitute for platinum in high-sensitivity device. Low electrical abrasion resistance.
Better welding resistance and hardness than Ag.
Excellent corrosion resistance, low Electrical Contact resistance, long-durability, confidentiality. Also called to PGS.
Good corrosion resistance and mechanical property.
Alloy containing 62.5% of gold. Manufactured to the state of line or substitute. Resistant to Electrical Contact with impact, good springing property, and no change of color.
Pd Group
Convenient material used as a substitute for platinum in proper conditions, but has a little weak resistance to electrical abrasion. Showing good Arc / oxidation / emulsification resistance.
AgPd Group
Perfect resistance to emulsion film generation. Showing the best hardness and abrasion resistance in containing 40% silver, and used as a substitute for platinum.
Ag Group
다른 모든 금속보다 높은 전기전도도 및 열전도도성을 가지고 있으며 산화가 안되고 저접촉력에서도 낮은 접촉저항을 나타낸다. 공기중에 유화물의 피막을 형성하는 유황이 포함되어 있는 경우에는 사용할 수 없다.
AgNi Group
AgNi alloy is a Electrical Contact, which complementing the welding resistance and abrasion resistance of Ag and elevating the potential of processing. Since Ni is not employed in Ag, it is manufactured by Power Metallurgy Process, and the contents Ni is 5~20wt%.
AgCu Group
Its property of discolor resistance are decreased by the contents of copper, but its hardness and mechanical abrasion resistance are increased. It has high Electrical Contact capacity and may not used if there is Sliding Electrical Contact in operating.
AgCdO Group
AgCdO Group is manufactured mainly with cadmium oxide silver. As a Electrical Contact, it has an excellent welding resistance and abrasion resistance, stable Electrical Contact resistance, good electric and thermal conductivity. Widely used in Electrical Contact for heavy current.
AgSnO2 Group (Powder Process)
은기지에SnO2 산화물 분말을 분말야금법에 의해 분산시킨 소재로 우수한 전기전도도를 유지하면서 내Arc성 , 내용착성 ,내소모성이 향상된 소재이다.
AgSnO2 Group (Total Oxidation Process)
Ag oxide-dispersion-strengthened alloy; heat stable SnO2 owing to its feature of material; micro-dispersion of SnO2 to Ag Matrix to give resistance to Arc, welding, and abrasion; total oxidation process. Particularly, it has excellent feature for relay and switch in the heavy duty area of DC.
AgSnO2 lnOx Group
Cd-free material not brining about environmental problem; manufactured by internal oxidation which alloying with various additional elements to Ag-Sn alloy; very fine dispersion of oxide particles, which giving good welding / abrasion resistance; used in both AC and DC resistance.