LCDQ Series Laminated Copper Flexible Connector

The LCDQ series features laminated copper foil flexible connectors, manufactured from multiple layers of thin electrolytic copper foil. These connectors provide excellent flexibility while maintaining high current carrying capacity.

Product Overview

Laminated flexible connectors (also known as flexible busbar or copper expansion joints) are designed to accommodate thermal expansion, vibration, and misalignment in electrical power systems.

Construction

Copper Foil Layers

• Made from high-purity C11000 copper foil
• Standard foil thickness: 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.3mm
• Number of layers: 10 - 200+ (depending on current rating)
• Each layer is insulated or treated to prevent inter-layer friction

Termination Options

• Welded ends: Diffusion welded or molecularly welded for maximum conductivity
• Bolted ends: With drilled holes for bolted connections
• Crimped ends: Tubular crimped terminals

Insulation Options

• Heat-shrink tubing (various colors and temperature ratings)
• Glass fiber sleeve for high temperature
• Silicone coating for harsh environments
• Bare (no insulation) for enclosed applications

Key Advantages

Superior Flexibility

The laminated foil construction allows for bending in multiple planes, making installation easier and accommodating movement from thermal expansion.

Vibration Resistance

Excellent fatigue resistance for applications with continuous vibration, such as generators, motors, and railway equipment.

High Current Density

Compact design with high current carrying capacity relative to cross-sectional area.

Technical Parameters

Standard Series

Model	Current Rating	Cross Section	Typical Width
LCDQ-100	100A	25mm²	20mm
LCDQ-200	200A	50mm²	30mm
LCDQ-400	400A	100mm²	40mm
LCDQ-630	630A	160mm²	50mm
LCDQ-800	800A	200mm²	60mm
LCDQ-1000	1000A	250mm²	60mm
LCDQ-1250	1250A	315mm²	80mm
LCDQ-1600	1600A	400mm²	80mm
LCDQ-2000	2000A	500mm²	100mm
LCDQ-2500	2500A	630mm²	100mm
LCDQ-3150	3150A	800mm²	120mm
LCDQ-4000	4000A	1000mm²	120mm

Custom sizes and current ratings available upon request.

Applications

Power Generation & Distribution

Used in transformers, switchgear, circuit breakers, and busbar systems to accommodate thermal expansion and vibration.

Renewable Energy

Ideal for solar inverters, wind turbine generators, and battery energy storage systems.

Railway & Transit

Used in traction systems, power converters, and grounding connections on trains and metros.

Industrial Equipment

Welding machines, power supplies, electrolysis equipment, and electric furnaces.