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BUSSMANN Semiconductor Fuse: FWH Series, Fast-Acting, 300 A, 500 V AC - Fast-Acting Bolt-On Fuses
BUSSMANNFast-Acting Bolt-On Fuses

BUSSMANN Semiconductor Fuse: FWH Series, Fast-Acting, 300 A, 500 V AC

The BUSSMANN FWH Series is a fast-acting bolt-on semiconductor fuse, model FWH-300A. It is rated for 300 A with a voltage rating of 500 V AC and 500 V DC, supporting AC/DC voltage types.

SKU 3G-OTH-26050

Also listed as: FWH300A · FWH 300A

Brand
BUSSMANN
Item
Semiconductor Fuse: FWH Series, Fast-Acting, 300 A, 500 V AC
Category
Fast-Acting Bolt-On Fuses
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Technical Specifications

BUSSMANN
Manufacturer Part Number
FWH-300A
Series
FWH
Type
Fast-Acting, 300 A
AC
500 V
Voltage Type
AC/DC
DC DC Volt Rating
500 V

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

Product Description

The BUSSMANN FWH Series is a fast-acting bolt-on semiconductor fuse, model FWH-300A. It is rated for 300 A with a voltage rating of 500 V AC and 500 V DC, supporting AC/DC voltage types.

Frequently Asked Questions

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

The BUSSMANN FWH-300A is a fast-acting bolt-on fuse designed to protect power semiconductors, such as diodes and thyristors, in industrial drives, UPS systems, and power conversion equipment. Its 300 A rating and 500 V AC/DC capability make it suitable for high-current DC bus and AC line protection.

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

The BUSSMANN FWH-300A is part of the FWH Series, rated for 300 A with a voltage rating of 500 V AC and 500 V DC. It is a fast-acting, bolt-on type fuse with AC/DC voltage capability. The manufacturer part number is FWH-300A, and it is designed for semiconductor protection.

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

3G Electric supplies the BUSSMANN FWH-300A fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this fuse to support your operations anywhere.

How to select the correct BUSSMANN FWH series fuse for an application?

To select the correct BUSSMANN FWH series fuse, match the continuous current rating (e.g., 300 A for FWH-300A) to your load, and ensure the voltage rating (500 V AC/DC) exceeds your system voltage. Consider the fast-acting characteristic for semiconductor protection. Consult the fuse's I²t and clearing time curves for coordination.

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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