Eaton Bussmann

Bussmann FNM-3/10 Time-Delay Midget Fuse 300mA 250VAC

SKU: LL1-BSM-FNM-3/10*1

$6.12

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Bussmann FNM-3/10 Time-Delay Midget Fuse 300mA 250VAC

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Eaton Bussmann

Bussmann FNM-3/10 Time-Delay Midget Fuse 300mA 250VAC

SKU: LL1-BSM-FNM-3/10*1

PRODUCT PRICE USD

$6.12

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PRODUCT DOCUMENTATION

Product Information

Technical specifications, features, applications and purchasing information.

Technical Specifications

Brand	Bussmann (Eaton)
Model Number	FNM-3/10
Product Category	Time-Delay Midget Fuse
Fuse Series	FNM
Current Rating	0.3 A (300 mA, 3/10 A)
AC Voltage Rating	250 VAC
Operating Characteristic	Time-Delay
Fuse Element	Dual Element
Fuse Format	Midget Cartridge Fuse
Nominal Dimensions	10.3 x 38.1 mm (13/32 x 1-1/2 in)
Termination Style	Ferrule End Caps
Fuse Indication	Non-Indicating
Interrupting Rating at 250 VAC	35 A
Interrupting Rating at 125 VAC	10 kA
Fuse Body Construction	Melamine Tube
End Cap Material	Nickel-Plated Bronze
Voltage Color Code	Green (250 VAC Maximum)
Compliance	UL Listed (UL 248-14, File E19180); CSA Certified (File 53787); CE Marked; RoHS Compliant
Protection Type	Supplemental Overcurrent Protection

Key Features

300 mA Current Rating

Provides supplemental overcurrent protection for electrical circuits requiring a 0.3 A time-delay fuse rating.

250 VAC Voltage Rating

Designed for compatible AC control and equipment circuits operating within the published 250 VAC rating.

Dual-Element Time-Delay Design

Helps accommodate temporary inrush currents associated with inductive loads, motors and transformers according to the published fuse time-current characteristics.

Compact Midget Fuse Format

Uses a nominal 10.3 x 38.1 mm cylindrical cartridge design for installation in dimensionally compatible and properly rated fuse holders.

Voltage-Specific Interrupting Ratings

Provides an interrupting rating of 35 A at 250 VAC and 10 kA at 125 VAC. Selection must account for available fault current at the actual system voltage.

Industrial Supplemental Protection

Combines melamine tube construction, dual-element time-delay operation and ferrule connections for suitable inductive control circuits.

Applications

Industrial control power transformer circuits
Low-current inductive control circuits
Circuits with temporary inrush currents
Supplemental motor control protection
Industrial electrical control panels
Power electronic equipment circuits
Electrical equipment maintenance and replacement
Compatible midget fuse holders and fuse blocks

Purchase Information

We support online purchase of the Bussmann FNM-3/10 Time-Delay Midget Fuse. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.

Frequently Asked Questions

What is the Bussmann FNM-3/10?
It is a 300 mA time-delay midget fuse from the Eaton Bussmann FNM series, designed for supplemental overcurrent protection.

Who manufactures FNM-3/10?
FNM-3/10 is a product in the Eaton Bussmann series of electrical circuit protection devices.

What is the current rating?
The rated current is 0.3 A, equivalent to 300 mA or three-tenths of an ampere.

What is its voltage rating?
The specified voltage rating is 250 VAC maximum.

Is FNM-3/10 a fast-acting fuse?
No. It is a dual-element time-delay fuse designed to accommodate certain temporary inrush currents.

What is the interrupting rating at 250 VAC?
The published interrupting rating for FNM-3/10 is 35 A at 250 VAC.

What is the interrupting rating at 125 VAC?
The published interrupting rating is 10,000 A at 125 VAC. This higher value must not be applied to circuits operating at 250 VAC.

What are the fuse dimensions?
The nominal dimensions are 10.3 mm in diameter and 38.1 mm in length, corresponding to the midget cartridge fuse format.

Does this fuse have a visual indicator?
No. The standard FNM-3/10 is a non-indicating fuse.

What type of terminals does it use?
It uses ferrule-style end caps made of nickel-plated bronze for installation in compatible fuse holders.

Can FNM-3/10 be used for branch-circuit protection?
The FNM series is intended for supplemental overcurrent protection. Branch-circuit applications require a protection device with the appropriate classification and interrupting capacity.

What should be verified before ordering?
Confirm the FNM-3/10 model number, 300 mA current rating, 250 VAC voltage rating, voltage-specific interrupting capacity, time-delay requirements, physical dimensions and fuse-holder compatibility.

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