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BUSSMANN FNM-4 Time-Delay Cylindrical Fuse - Time-Delay Cylindrical Fuses
BUSSMANNTime-Delay Cylindrical Fuses

BUSSMANN FNM-4 Time-Delay Cylindrical Fuse

The BUSSMANN FNM Series is a time-delay cylindrical fuse, specifically the Midget type, designed for overcurrent protection. This non-indicating fuse is rated for 4 A at 250 V AC and measures 13/32 in x 1 1/2 in…

SKU 3G-OTH-24451

Also listed as: FNM4 · FNM 4

Brand
BUSSMANN
Item
FNM-4 Time-Delay Cylindrical Fuse
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
FNM-4
Series
FNM
Type
Midget, Time-Delay, 4 A, 13/32 in x 1 1/2 in, Non-Indicating
AC
250 V

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

Product Description

The BUSSMANN FNM Series is a time-delay cylindrical fuse, specifically the Midget type, designed for overcurrent protection. This non-indicating fuse is rated for 4 A at 250 V AC and measures 13/32 in x 1 1/2 in, with the manufacturer part number FNM-4.

Frequently Asked Questions

What is the BUSSMANN FNM-4 fuse used for?

The BUSSMANN FNM-4 is a time-delay cylindrical fuse used for overcurrent protection in industrial control panels, motor circuits, and lighting systems. Its time-delay characteristic allows it to withstand temporary inrush currents without nuisance opening, making it suitable for applications with inductive loads.

What are the specifications of the BUSSMANN FNM-4 fuse?

The BUSSMANN FNM-4 is a Midget, time-delay, non-indicating fuse rated 4 A at 250 V AC. It measures 13/32 in x 1 1/2 in and is part of the FNM Series. The manufacturer part number is FNM-4. It provides reliable overcurrent protection in a compact cylindrical package.

Where to buy BUSSMANN FNM-4 fuses worldwide?

3G Electric supplies BUSSMANN FNM-4 fuses worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source genuine BUSSMANN components to support your maintenance and production needs.

How to select the correct BUSSMANN FNM series fuse for my application?

To select the correct BUSSMANN FNM series fuse, match the voltage rating (250 V AC) and current rating (4 A for FNM-4) to your circuit requirements. Consider the time-delay characteristic for motor or transformer starting currents. Ensure the physical size (13/32 in x 1 1/2 in) fits your fuse holder. Consult a qualified engineer for critical applications.

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
Time-delay cylindrical fuse rated 4.5 A and 250 V AC. Midget size with 13/32 x 1-1/2 in dimensions, non-indicating. Used in industrial control circuits, motor protection, and transformer protection to allow temporary inrush currents without nuisance opening
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Time-delay cylindrical fuse rated 4.5 A and 250 V AC. Midget size with 13/32 x 1-1/2 in dimensions, non-indicating. Used in industrial control circuits, motor protection, and transformer protection to allow temporary inrush currents without nuisance opening
Time-delay cylindrical fuse rated 3.5 A at 250 V AC. Midget size with 13/32 in x 1 1/2 in dimensions. Non-indicating design. Suitable for overcurrent protection in control circuits, motors, and transformers where temporary inrush currents occur
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Time-delay cylindrical fuse rated 3.5 A at 250 V AC. Midget size with 13/32 in x 1 1/2 in dimensions. Non-indicating design. Suitable for overcurrent protection in control circuits, motors, and transformers where temporary inrush currents occur
Time-delay cylindrical fuse rated 3.2 A and 250 V AC. Midget size with dimensions 13/32 in x 1 1/2 in, non-indicating design. Used in industrial control circuits, motor protection, and transformer applications to handle temporary inrush currents without nuisance opening
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Time-delay cylindrical fuse rated 3.2 A and 250 V AC. Midget size with dimensions 13/32 in x 1 1/2 in, non-indicating design. Used in industrial control circuits, motor protection, and transformer applications to handle temporary inrush currents without nuisance opening
Time-delay cylindrical fuse, midget type, rated 6 A at 250 V AC. Non-indicating design with dimensions 13/32 in x 1 1/2 in. Used in industrial control circuits, motor protection, and transformer protection to accommodate temporary inrush currents without nuisance opening
BUSSMANN
Time-delay cylindrical fuse, midget type, rated 6 A at 250 V AC. Non-indicating design with dimensions 13/32 in x 1 1/2 in. Used in industrial control circuits, motor protection, and transformer protection to accommodate temporary inrush currents without nuisance opening
Time-delay cylindrical fuse rated 5.6 A and 250 V AC. Midget size with 13/32 in x 1 1/2 in dimensions. Non-indicating design. Suitable for overcurrent protection in industrial control panels, motor circuits, and lighting systems where time-delay characteristics accommodate temporary inrush currents
BUSSMANN
Time-delay cylindrical fuse rated 5.6 A and 250 V AC. Midget size with 13/32 in x 1 1/2 in dimensions. Non-indicating design. Suitable for overcurrent protection in industrial control panels, motor circuits, and lighting systems where time-delay characteristics accommodate temporary inrush currents
Time-delay midget fuse rated 2.25 A and 250 V AC. Non-indicating design with dimensions 13/32 in x 1 1/2 in. Provides overload and short-circuit protection for control circuits, motors, and transformers, accommodating temporary inrush currents
BUSSMANN
Time-delay midget fuse rated 2.25 A and 250 V AC. Non-indicating design with dimensions 13/32 in x 1 1/2 in. Provides overload and short-circuit protection for control circuits, motors, and transformers, accommodating temporary inrush currents

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Class RK5 time-delay fuse rated 45 A, 250 V AC and 125 V DC. The indicating feature provides visual confirmation when the fuse opens. Suitable for motor circuits, transformers, and lighting panels where temporary inrush currents occur
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Class RK5 time-delay fuse rated 45 A, 250 V AC and 125 V DC. The indicating feature provides visual confirmation when the fuse opens. Suitable for motor circuits, transformers, and lighting panels where temporary inrush currents occur
Time-delay cylindrical fuse rated 30 A at 250 V AC. Midget size (13/32 in x 1 1/2 in), non-indicating. Provides overcurrent protection in circuits with motors, transformers, or other loads that draw temporary inrush currents
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Time-delay cylindrical fuse rated 30 A at 250 V AC. Midget size (13/32 in x 1 1/2 in), non-indicating. Provides overcurrent protection in circuits with motors, transformers, or other loads that draw temporary inrush currents
Time-delay cylindrical fuse rated 125 mA at 500 V AC. Midget size (13/32 in x 1 1/2 in), non-indicating. Provides overcurrent protection with time-delay characteristic to withstand inrush currents in control circuits, motor starters, and panel boards
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Time-delay cylindrical fuse rated 125 mA at 500 V AC. Midget size (13/32 in x 1 1/2 in), non-indicating. Provides overcurrent protection with time-delay characteristic to withstand inrush currents in control circuits, motor starters, and panel boards
Class RK5 time-delay cylindrical fuse rated 30 A at 250 V AC or 125 V DC. The indicating feature provides visual confirmation when the fuse has opened, aiding in troubleshooting. Suitable for overcurrent protection in motor circuits, lighting, and industrial equipment
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Class RK5 time-delay cylindrical fuse rated 30 A at 250 V AC or 125 V DC. The indicating feature provides visual confirmation when the fuse has opened, aiding in troubleshooting. Suitable for overcurrent protection in motor circuits, lighting, and industrial equipment
The BUSSMANN GMC-4-R is a GMC Series time-delay cylindrical fuse rated 4 A at 125 V AC. It features a 5 mm x 20 mm package and is used for overcurrent protection in industrial equipment such as control panels, power supplies, and machinery
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The BUSSMANN GMC-4-R is a GMC Series time-delay cylindrical fuse rated 4 A at 125 V AC. It features a 5 mm x 20 mm package and is used for overcurrent protection in industrial equipment such as control panels, power supplies, and machinery
Time-delay cylindrical fuse rated at 3.2 A and 250 V AC, with dimensions of 1/4 in x 1 1/4 in. Provides overcurrent protection in circuits where temporary inrush currents occur, such as motors and control circuits, preventing nuisance blowing while safeguarding against sustained faults
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Time-delay cylindrical fuse rated at 3.2 A and 250 V AC, with dimensions of 1/4 in x 1 1/4 in. Provides overcurrent protection in circuits where temporary inrush currents occur, such as motors and control circuits, preventing nuisance blowing while safeguarding against sustained faults
Time-delay cylindrical fuse rated 800 mA, 250 V AC, with a 5 mm x 20 mm non-indicating body. Part of the S505 series, equivalent to 477 and GSF series. Used for overcurrent protection in circuits with temporary inrush currents, such as motor circuits, transformers, and control panels
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Time-delay cylindrical fuse rated 800 mA, 250 V AC, with a 5 mm x 20 mm non-indicating body. Part of the S505 series, equivalent to 477 and GSF series. Used for overcurrent protection in circuits with temporary inrush currents, such as motor circuits, transformers, and control panels
Class RK5 time-delay cylindrical fuse rated 8 A, 600 V AC and 300 V DC. Non-indicating design from the FRS-R Series. Suitable for branch-circuit protection of motor circuits, transformers, and lighting panels, accommodating inrush currents without nuisance opening
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Class RK5 time-delay cylindrical fuse rated 8 A, 600 V AC and 300 V DC. Non-indicating design from the FRS-R Series. Suitable for branch-circuit protection of motor circuits, transformers, and lighting panels, accommodating inrush currents without nuisance opening