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BUSSMANN Semiconductor Fuse: FWJ Series, Fast-Acting, 300 A, 1,000 V AC - Fast-Acting Bolt-On Fuses
BUSSMANNFast-Acting Bolt-On Fuses

BUSSMANN Semiconductor Fuse: FWJ Series, Fast-Acting, 300 A, 1,000 V AC

The BUSSMANN FWJ Series Semiconductor Fuse is a fast-acting bolt-on fuse designed for AC/DC applications. The FWJ-300A model is rated for 300 A, with a voltage rating of 1,000 V AC and 800 V DC. This fuse provides…

SKU 3G-OTH-27794

Also listed as: FWJ300A · FWJ 300A

Brand
BUSSMANN
Item
Semiconductor Fuse: FWJ Series, Fast-Acting, 300 A, 1,000 V AC
Category
Fast-Acting Bolt-On Fuses
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

BUSSMANN
Manufacturer Part Number
FWJ-300A
Series
FWJ
Type
Fast-Acting, 300 A
AC
1,000 V
Voltage Type
AC/DC
DC DC Volt Rating
800 V

Technical Documents

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BUSSMANN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BUSSMANN FWJ Series Semiconductor Fuse is a fast-acting bolt-on fuse designed for AC/DC applications. The FWJ-300A model is rated for 300 A, with a voltage rating of 1,000 V AC and 800 V DC. This fuse provides overcurrent protection for power electronic circuits.

Frequently Asked Questions

What is the BUSSMANN FWJ-300A semiconductor fuse used for?

The BUSSMANN FWJ-300A is a fast-acting bolt-on fuse used for overcurrent protection in power electronic circuits, such as variable frequency drives, rectifiers, and UPS systems. It handles AC/DC applications up to 1,000 V AC and 800 V DC, safeguarding sensitive semiconductor devices from short circuits and overloads.

What are the specifications of the BUSSMANN FWJ-300A fuse?

The BUSSMANN FWJ-300A is part of the FWJ Series, rated for 300 A with a voltage rating of 1,000 V AC and 800 V DC. It is a fast-acting, bolt-on type fuse designed for AC/DC applications. The manufacturer part number is FWJ-300A, and it provides reliable overcurrent protection for industrial power electronics.

Where to buy the BUSSMANN FWJ-300A fuse worldwide?

You can source the BUSSMANN FWJ-300A fuse through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine BUSSMANN components for your power protection needs.

How to select the right BUSSMANN FWJ series fuse for my application?

To select the correct BUSSMANN FWJ series fuse, match the continuous current rating (e.g., 300 A) to your circuit load and ensure the voltage rating (1,000 V AC or 800 V DC) exceeds your system voltage. Consider the fast-acting characteristic for semiconductor protection. Consult the fuse's time-current curve and mounting style (bolt-on) for proper integration.

Used in

Common applications for BUSSMANN
Industrial motor control centers — BUSSMANN LPT series Class T time-delay fuses for branch circuit protection
Semiconductor protection in variable frequency drives — BUSSMANN FWA series fast-acting bolt-on fuses rated 150 V AC/DC
Automotive auxiliary circuit protection — BUSSMANN CB222 series Type II circuit breakers in 12 V DC systems
Control panel overcurrent protection — BUSSMANN FNA series midget time-delay indicating fuses for instrumentation
Main feeder protection in power distribution — BUSSMANN KLU series Class L time-delay bolt-on fuses up to 650 A
Fuse replacement in existing panels — BUSSMANN S-8301-1-R fuse block accepting 3AG and other glass/ceramic fuses

BUSSMANN Products

3G Electric supplies BUSSMANN fast-acting bolt-on fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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