Lawson BS88 Semiconductor Protection Fuses Overview

The Lawson BS88 series semiconductor protection fuses are engineered to deliver fast, reliable interruption of fault currents to protect sensitive power semiconductors such as thyristors, diodes, and IGBTs. These fuses combine excellent breaking capacity with minimal power loss, ensuring optimal performance in power electronics, motor drives, and UPS systems.

Available in two main voltage classes:

• 240V fuses — LSCA series

• 690V fuses — LSCB series

Both series feature bolted connection terminals with either offset or central tags, designed for secure and efficient installation.

Key Features

• Fast-Acting Semiconductor Protection: Minimizes damage from short circuits and overcurrents by interrupting quickly.

• High Breaking Capacity: Suitable for demanding industrial power electronics.

• Low Power Loss: Improves system efficiency and reduces heat generation.

• Bolted Connections: Ensures secure, vibration-resistant mounting with options for offset or central tag positioning.

• Wide Current Ratings: From 10A up to 900A (240V) and up to 710A (690V) to meet diverse application requirements.

• Standard BS88 Form Factor: Fits common fuse holders and panels for easy integration.

• Reliable and Durable: Engineered to withstand harsh electrical environments.

Technical Specifications

Example Part Ratings:

• LSCA (240V Offset Tags): 10A, 12A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A, 150A, 180A, 200A, 250A, 300A, 315A

• LSCAD (240V Central Tags): 300A, 325A, 350A, 400A, 450A, 500A, 550A, 600A, 630A

• LSCB (690V Offset Tags): 10A, 12A, 16A, 20A, 25A, 30A, 32A, 40A, 50A, 63A, 70A, 75A, 80A, 90A, 100A, 160A, 180A, 200A, 225A, 250A, 280A, 315A, 350A, 355A

• LSCBD (690V Central Tags): 175A, 180A, 200A, 225A, 235A, 280A, 300A, 315A, 325A, 350A, 355A, 400A, 450A, 500A, 550A, 560A, 630A

Applications

Lawson BS88 semiconductor fuses are ideal for:

• Power semiconductor device protection (thyristors, diodes, IGBTs)

• Motor drives and inverters

• Uninterruptible Power Supplies (UPS)

• Industrial power electronics systems

• Renewable energy systems (solar, wind)

• Electrical distribution and control panels

Why Choose Lawson Semiconductor Protection Fuses?

Lawson BS88 fuses ensure high reliability and precision protection in electrical systems where semiconductor devices are at risk. Their robust design and wide current range make them a preferred choice for engineers and system designers looking for long-lasting, effective fuse solutions.

For professional advice and detailed technical assistance on selecting the right Lawson fuse for your application, contact Casadaa Distribution today.

Casadaa Distribution – Your reliable partner for industrial electrical protection solutions.