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BUSSMANN FNA-4-1/2 Time-Delay Midget Fuse, 4.5 A, 250 V AC, Indicating - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN FNA-4-1/2 Time-Delay Midget Fuse, 4.5 A, 250 V AC, Indicating

The BUSSMANN FNA Series is a time-delay cylindrical fuse, specifically a midget type rated at 4.5 A and 250 V AC. It features a 13/32 in x 1 1/2 in dimension and is an indicating fuse (MPN FNA-4-1/2).

SKU 3G-OTH-25671

Also listed as: FNA412 · FNA 4 1 2 · FNA-4-1-2

Brand
BUSSMANN
Item
FNA-4-1/2 Time-Delay Midget Fuse, 4.5 A, 250 V AC, Indicating
Category
Time-Delay Cylindrical Fuses
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

BUSSMANN
Manufacturer Part Number
FNA-4-1/2
Series
FNA
Type
Midget, Time-Delay, 4.5 A, 13/32 in x 1 1/2 in, Indicating
AC
250 V

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

Product Description

The BUSSMANN FNA Series is a time-delay cylindrical fuse, specifically a midget type rated at 4.5 A and 250 V AC. It features a 13/32 in x 1 1/2 in dimension and is an indicating fuse (MPN FNA-4-1/2).

Frequently Asked Questions

What is the BUSSMANN FNA-4-1/2 fuse used for?

The BUSSMANN FNA-4-1/2 is a time-delay midget fuse used for overcurrent protection in industrial control panels, motor circuits, and lighting systems. Its indicating feature allows quick identification of a blown fuse, reducing downtime in maintenance applications.

What are the specifications of the BUSSMANN FNA-4-1/2 fuse?

The BUSSMANN FNA-4-1/2 is a 4.5 A, 250 V AC time-delay midget fuse from the FNA Series. It measures 13/32 in x 1 1/2 in and is an indicating type. The manufacturer part number is FNA-4-1/2.

Where to buy the BUSSMANN FNA-4-1/2 fuse worldwide?

3G Electric supplies the BUSSMANN FNA-4-1/2 fuse worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct BUSSMANN FNA series fuse for your application?

To select the correct BUSSMANN FNA series fuse, match the voltage rating (250 V AC) and current rating (4.5 A) to your circuit requirements. The time-delay characteristic handles inrush currents in motor or transformer loads. The indicating feature aids visual inspection.

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 time-delay cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
BUSSMANN Fuse: FNA Series, Midget, Time-Delay, 2.25 A, 250 V AC, 13/32 in x 1 1/2 in, Indicating (MPN FNA-2-1/4)
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BUSSMANN Fuse: FNA Series, Midget, Time-Delay, 2.25 A, 250 V AC, 13/32 in x 1 1/2 in, Indicating (MPN FNA-2-1/4)
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BUSSMANN Fuse: FNA Series, Midget, Time-Delay, 2.5 A, 250 V AC, 13/32 in x 1 1/2 in, Indicating (MPN FNA-2-1/2)
Time-delay midget fuse rated 800 mA at 250 V AC. Features an indicating function for quick identification of a blown fuse. Dimensions 13/32 in x 1 1/2 in. Suitable for overcurrent protection in control panels, motor circuits, and lighting systems
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Time-delay midget fuse rated 800 mA at 250 V AC. Features an indicating function for quick identification of a blown fuse. Dimensions 13/32 in x 1 1/2 in. Suitable for overcurrent protection in control panels, motor circuits, and lighting systems
Midget fuse, 1.8 A, 250 V AC, 13/32 in x 1 1/2 in, time-delay, indicating type. Used for overcurrent protection in control panels, motor circuits, and lighting systems where temporary inrush currents occur
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Midget time-delay cylindrical fuse rated 750 mA at 250 V AC, with 13/32 in x 1 1/2 in dimensions and indicating feature. Suitable for overcurrent protection in control circuits, motor starters, and lighting systems where delayed response to inrush currents is required
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Midget time-delay cylindrical fuse rated 750 mA at 250 V AC, with 13/32 in x 1 1/2 in dimensions and indicating feature. Suitable for overcurrent protection in control circuits, motor starters, and lighting systems where delayed response to inrush currents is required
Time-delay midget fuse rated 1.4 A, 250 V AC, with 13/32 in x 1 1/2 in indicating body. Provides overcurrent protection in industrial control circuits, lighting, and small motor applications where temporary inrush currents occur
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Time-delay midget fuse rated 1.4 A, 250 V AC, with 13/32 in x 1 1/2 in indicating body. Provides overcurrent protection in industrial control circuits, lighting, and small motor applications where temporary inrush currents occur

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