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BUSSMANN Semiconductor Fuse: FWJ Series, Fast-Acting, 40 A, 1,000 V AC - Fast-Acting Bolt-On Fuses
BUSSMANNFast-Acting Bolt-On Fuses

BUSSMANN Semiconductor Fuse: FWJ Series, Fast-Acting, 40 A, 1,000 V AC

The BUSSMANN FWJ Series Semiconductor Fuse (MPN FWJ-40A) is a fast-acting bolt-on fuse rated at 40 A, 1,000 V AC, and 800 V DC. This AC/DC voltage type fuse is designed for semiconductor protection in industrial…

SKU 3G-OTH-26773

Brand
BUSSMANN
Item
Semiconductor Fuse: FWJ Series, Fast-Acting, 40 A, 1,000 V AC
Category
Fast-Acting Bolt-On Fuses
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Technical Specifications

BUSSMANN
Manufacturer Part Number
FWJ-40A
Series
FWJ
Type
Fast-Acting, 40 A
AC
1,000 V
Voltage Type
AC/DC
DC DC Volt Rating
800 V
View Full Spec Sheet

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

Product Description

The BUSSMANN FWJ Series Semiconductor Fuse (MPN FWJ-40A) is a fast-acting bolt-on fuse rated at 40 A, 1,000 V AC, and 800 V DC. This AC/DC voltage type fuse is designed for semiconductor protection in industrial equipment.

Frequently Asked Questions

What is the BUSSMANN FWJ-40A semiconductor fuse used for?

The BUSSMANN FWJ-40A is a fast-acting bolt-on fuse designed to protect semiconductor devices such as diodes, thyristors, and IGBTs in industrial power electronics. It is commonly applied in AC/DC drives, inverters, and UPS systems where rapid overcurrent interruption is critical to prevent damage to sensitive components.

What are the specifications of the BUSSMANN FWJ-40A fuse?

The BUSSMANN FWJ-40A is a fast-acting semiconductor fuse rated at 40 A, 1,000 V AC, and 800 V DC. It belongs to the FWJ Series and features a bolt-on mounting style. The voltage type is AC/DC, and the manufacturer part number is FWJ-40A. This fuse is designed for high-speed overcurrent protection in industrial equipment.

Where to buy the BUSSMANN FWJ-40A fuse worldwide?

You can source the BUSSMANN FWJ-40A 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. 3G Electric supplies genuine BUSSMANN components for industrial applications.

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

To select the correct BUSSMANN FWJ series fuse, match the continuous current rating (e.g., 40 A) to the load, and ensure the voltage rating (1,000 V AC or 800 V DC) exceeds the system voltage. Consider the fast-acting characteristic for semiconductor protection. Always consult the manufacturer's data sheet for interrupting capacity and mounting dimensions.

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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