Products Description

In the core logic of high-voltage switching circuits, Normally Open Contactor Electrical Contacts bear the crucial responsibility of "connection and disconnection." Our composite silver contact utilizes an industry-leading "silver core, copper frame" structural design. Its bottom layer is made of highly conductive copper (Cu) or copper alloy (CuNi), providing robust mechanical support and heat dissipation capabilities; while the contact layer is covered with a high-purity silver alloy (such as AgSnO₂, AgCdO, AgNi, etc.), leveraging silver's excellent conductivity and arc resistance to achieve both "low impedance between opening and closing" and "high flame retardancy between switching on and off."
Core Properties
Composite Structure Characteristics
Spring Loaded Electrical Contacts employing a double-layer composite integrated molding process, the contact layer is made of silver alloys such as AgSnO₂/AgCdO/AgNi, and the base layer is made of copper alloys such as Cu/CuNi. The two layers are tightly bonded through a professional composite process, eliminating the risk of delamination or detachment, while balancing conductivity and mechanical strength.
Normally Open Adaptability
Designed specifically for normally open contactors, focusing on the core scenario of "normally open, closed on demand" circuits, Schneider Auxiliary Contact offers rapid contact response and precise switching. It can stably adapt to the control requirements of high-frequency, high-load normally open circuits, meeting the stringent operating standards of high-end electrical equipment.
Standardized Adaptability
Size specifications cover mainstream normally open contactor requirements. Contact diameter, thickness, and tolerances are manufactured according to international standards. Non-standard customization is also supported, allowing for precise adaptation to customer equipment parameters, eliminating the need for comparing prices from multiple manufacturers and reducing selection costs for Normally Open Limit Switch Electrical Contacts.

Core Processes
Material Proportioning and Pre-treatment
Based on the material type required by the order, the contact layer and base layer materials are precisely proportioned. The Switch Electrical Contact raw materials undergo surface grinding, degreasing, and rust removal to remove surface impurities and oxide layers, ensuring a tight bond during lamination and preventing potential bonding problems.
High-Temperature Lamination Process
The pre-treated contact layer and base layer materials are placed in a high-temperature, high-pressure lamination machine. The lamination temperature, pressure, and time are strictly controlled to ensure a tight bond between the two layers, with a bonding surface density ≥99.5%, forming an integrated composite blank for Normally Open Limit Switch Electrical Contacts.
Precision Forming Process
The composite blank is placed in a high-precision forming machine. Precision forming is performed according to the contact diameter and thickness parameters required by the order, strictly controlling tolerances within ±0.01mm~±0.05mm to ensure dimensional accuracy. After forming, the Schneider Auxiliary Contact surface is initially ground to remove burrs.

Product details
Material Details
The Spring Loaded Electrical Contacts layer has a uniform color, is free of impurities and oxide layers, and meets purity standards; the copper alloy base layer has a smooth surface, free of scratches and burrs, and is dense; a material testing report is available; the two layers are tightly bonded, without delamination or gaps, and the bonding surface density is ≥99.5% as tested by professional equipment.
Dimensional Details
The contact diameter and thickness are precisely controllable, with tolerances strictly controlled within ±0.01mm~±0.05mm, with no dimensional deviations; the Schneider Auxiliary Contact surface is flat, without unevenness, ensuring tight contact with the normally open contactor and avoiding potential contact problems.
Manufacturing Details
The composite process traces are uniform, free of bubbles and cracks; the Normally Open Limit Switch Electrical Contacts edges are smooth and burr-free; after annealing, the contacts have excellent toughness and are not easily brittle or deformed; after precision polishing, the surface is highly smooth, improving contact performance and oxidation resistance.

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For customized solutions or selection support for Normally Open Contactor Electrical Contacts, please contact us. We will provide you with professional and efficient technical services and solutions.
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