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BUSSMANN Semiconductor Fuse: FWH Series, Fast-Acting, 45 A, 500 V AC, 500 V DC DC Volt Rating - Fast-Acting Bolt-On Fuses
BUSSMANNFast-Acting Bolt-On Fuses

BUSSMANN Semiconductor Fuse: FWH Series, Fast-Acting, 45 A, 500 V AC, 500 V DC DC Volt Rating

The BUSSMANN FWH Series Semiconductor Fuse (MPN FWH-45B) is a fast-acting bolt-on fuse rated at 45 A and 500 V AC/DC. This non-indicating fuse is designed for overcurrent protection in power electronic circuits.

SKU 3G-OTH-25050

Also listed as: FWH45B · FWH 45B

Brand
BUSSMANN
Item
Semiconductor Fuse: FWH Series, Fast-Acting, 45 A, 500 V AC, 500 V DC DC Volt Rating
Category
Fast-Acting Bolt-On Fuses
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

BUSSMANN
Manufacturer Part Number
FWH-45B
Series
FWH
Type
Fast-Acting, 45 A, Non-Indicating
AC
500 V
Voltage Type
AC/DC
DC DC Volt Rating
500 V

Technical Documents

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

Product Description

The BUSSMANN FWH Series Semiconductor Fuse (MPN FWH-45B) is a fast-acting bolt-on fuse rated at 45 A and 500 V AC/DC. This non-indicating fuse is designed for overcurrent protection in power electronic circuits.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the BUSSMANN FWH-45B semiconductor fuse used for?

The BUSSMANN FWH-45B 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 safeguards sensitive semiconductor devices by clearing faults quickly, preventing damage from short circuits or overloads in industrial equipment.

What are the specifications of the BUSSMANN FWH-45B fuse?

The BUSSMANN FWH-45B is a 45 A, fast-acting, non-indicating semiconductor fuse from the FWH Series. It has a voltage rating of 500 V AC and 500 V DC, with a bolt-on mounting style. The part number is FWH-45B, and it is designed for overcurrent protection in AC/DC circuits.

Where to buy the BUSSMANN FWH-45B fuse worldwide?

You can source the BUSSMANN FWH-45B 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 times; we provide competitive pricing and reliable sourcing for this BUSSMANN fuse.

How to select the right BUSSMANN FWH series fuse for your application?

To select the correct BUSSMANN FWH series fuse, match the voltage rating (500 V AC/DC) and current rating (e.g., 45 A for the FWH-45B) to your circuit requirements. Ensure the fast-acting characteristic aligns with the inrush current of your semiconductor devices. Consult the fuse's time-current curve for coordination with upstream protection.

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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