We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
BUSSMANN DFJ-30 Fast-Acting Cylindrical Fuse, Class J, 30 A, 600 V AC, 450 V DC - Fast-Acting Cylindrical Fuses
BUSSMANNFast-Acting Cylindrical Fuses

BUSSMANN DFJ-30 Fast-Acting Cylindrical Fuse, Class J, 30 A, 600 V AC, 450 V DC

The BUSSMANN DFJ Series is a fast-acting cylindrical fuse with a Class J body, rated at 30 A, 600 V AC, and 450 V DC (MPN DFJ-30). This fuse is designed for overcurrent protection in industrial equipment, offering a…

SKU 3G-OTH-133088

Also listed as: DFJ30 · DFJ 30

Brand
BUSSMANN
Item
DFJ-30 Fast-Acting Cylindrical Fuse, Class J, 30 A, 600 V AC, 450 V DC
Part Number
DFJ-30
Category
Fast-Acting Cylindrical Fuses
Available to Order
Also known as:DFJ-30BUSSMANN
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

BUSSMANN
Manufacturer Part Number
DFJ-30
Series
DFJ
Type
Class J, Cylindrical Body, Fast-Acting, 30 A
AC
600 V
DC
450 V
Speed
Fast-Acting
UNSPSC
39121608
Element
Single
Standards
248-8; CE; Class 1422-02; Class J; CSA; File 53787; File E4273; Guide JDDZ; UL
Catalog Page
172
Body Material
Melamine
Current Rating
30 A Current Rating This describes the maximum current these devices can safely handle. Exceeding this current may cause equipment damage or create electrical shock hazards.
Overall Length
2-1/4 in
Fuse Body Style
Cylindrical
Fuse Block Style
Non-Rejection
Overall Diameter
13/16 in
Country of Origin
Mexico (subject to change)
Visual Indication
Non-Indicating
Fuse Class or Type
J
Equivalent Brand and Series
Bussmann DFJ; Littelfuse LDFJ; Mersen HSJ
Compatible Fuse Block Series
CH30J; JM600; JP600; JT600; JTN600 Compatible Fuse Block Series This describes which series, style, or size of fuse block or holder is compatible with these fuses.
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The BUSSMANN DFJ Series is a fast-acting cylindrical fuse with a Class J body, rated at 30 A, 600 V AC, and 450 V DC (MPN DFJ-30). This fuse is designed for overcurrent protection in industrial equipment, offering a compact cylindrical form factor for space-constrained applications.

Frequently Asked Questions

What is the BUSSMANN DFJ-30 fuse used for?

The BUSSMANN DFJ-30 is a fast-acting cylindrical Class J fuse rated at 30 A, 600 V AC, and 450 V DC. It provides overcurrent protection in industrial equipment such as motor control centers, panelboards, and switchgear, especially in space-constrained applications where a compact cylindrical body is required.

What are the specifications of the BUSSMANN DFJ-30 fuse?

The BUSSMANN DFJ-30 is a Class J, fast-acting cylindrical fuse with a current rating of 30 A, voltage rating of 600 V AC and 450 V DC. It is part of the DFJ Series (MPN DFJ-30) and is designed for reliable overcurrent protection in industrial environments. The compact cylindrical body suits tight installations.

Where to buy the BUSSMANN DFJ-30 fuse worldwide?

3G Electric supplies the BUSSMANN DFJ-30 fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this fuse for your project; we provide competitive pricing and reliable service for international orders.

How to select the correct BUSSMANN DFJ-30 fuse for an application?

To select the BUSSMANN DFJ-30, verify your circuit's voltage (up to 600 V AC or 450 V DC) and continuous current (30 A). Ensure the Class J rejection-style holder matches the cylindrical body. For fast-acting protection, confirm the fuse clears overcurrents quickly. Consult a qualified engineer for coordination with downstream devices.

Used in

Common applications for BUSSMANN
Industrial drives — BUSSMANN FWC series fast-acting cylindrical fuses protect power semiconductors in AC/DC drive circuits.
Control transformers — BUSSMANN FNQ-R series time-delay fuses handle inrush currents in control power circuits.
Semiconductor protection — BUSSMANN KAC series bolt-on fuses safeguard diodes, thyristors, and IGBTs in AC-only applications.
Electrical panels — BUSSMANN FP-2, FP-3, FP-4, and FP-6 fuse pullers enable safe fuse replacement in distribution panels.
Automotive electrical systems — BUSSMANN FP-A3 fuse puller removes and installs 1/4 in and 1/2 in automotive fuses.
Power supplies — BUSSMANN FWC series fuses provide overcurrent protection in AC/DC power supply circuits.
Not sure this is the right part? Photo-identify it

BUSSMANN Products

3G Electric supplies BUSSMANN fast-acting cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from BUSSMANN

View all BUSSMANN parts
Class J fast-acting cylindrical fuse rated 60 A and 600 V AC. Non-indicating design with a cylindrical body. Provides overcurrent protection in industrial electrical circuits such as motor control centers, panelboards, and switchgear
BUSSMANN
Class J fast-acting cylindrical fuse rated 60 A and 600 V AC. Non-indicating design with a cylindrical body. Provides overcurrent protection in industrial electrical circuits such as motor control centers, panelboards, and switchgear
Fast-acting cylindrical fuse rated 5 A and 250 V AC. Non-indicating design with dimensions 1/4 in x 1 1/4 in. Suitable for overcurrent protection in branch circuits, control panels, and power supplies
BUSSMANN
Fast-acting cylindrical fuse rated 5 A and 250 V AC. Non-indicating design with dimensions 1/4 in x 1 1/4 in. Suitable for overcurrent protection in branch circuits, control panels, and power supplies
Fast-acting cylindrical fuse rated 1.25 A and 250 V AC, with a 5 mm x 20 mm form factor. Provides overcurrent protection for sensitive circuits in control panels, power supplies, and industrial machinery
BUSSMANN
Fast-acting cylindrical fuse rated 1.25 A and 250 V AC, with a 5 mm x 20 mm form factor. Provides overcurrent protection for sensitive circuits in control panels, power supplies, and industrial machinery
Fast-acting, non-indicating cylindrical fuse rated 4 A and 250 V AC. 5 mm x 20 mm package. Suitable for overcurrent protection in control panels, power supplies, and instrumentation
BUSSMANN
Fast-acting, non-indicating cylindrical fuse rated 4 A and 250 V AC. 5 mm x 20 mm package. Suitable for overcurrent protection in control panels, power supplies, and instrumentation
Class J, cylindrical body, fast-acting, non-indicating fuse rated 20 A and 600 V AC. Provides overcurrent protection in industrial electrical circuits such as motor control centers, panelboards, and branch circuits where rapid short-circuit response is required
BUSSMANN
Class J, cylindrical body, fast-acting, non-indicating fuse rated 20 A and 600 V AC. Provides overcurrent protection in industrial electrical circuits such as motor control centers, panelboards, and branch circuits where rapid short-circuit response is required
Fast-acting cylindrical fuse rated 20 A at 250 V AC. Non-indicating design with dimensions 1/4 in x 1 1/4 in. Suitable for overcurrent protection in control panels, power supplies, and industrial machinery
BUSSMANN
Fast-acting cylindrical fuse rated 20 A at 250 V AC. Non-indicating design with dimensions 1/4 in x 1 1/4 in. Suitable for overcurrent protection in control panels, power supplies, and industrial machinery
Fast-acting midget fuse rated 15 A and 250 V AC. Non-indicating design with dimensions 13/32 in x 1 1/2 in. Used for overcurrent protection in control panels, motor starters, and lighting systems
BUSSMANN
Fast-acting midget fuse rated 15 A and 250 V AC. Non-indicating design with dimensions 13/32 in x 1 1/2 in. Used for overcurrent protection in control panels, motor starters, and lighting systems
Fast-acting cylindrical fuse rated 100 A, 600 V DC with AC/DC voltage compatibility. Designed for overcurrent protection in DC circuits such as solar photovoltaic combiner boxes and inverters
BUSSMANN
Fast-acting cylindrical fuse rated 100 A, 600 V DC with AC/DC voltage compatibility. Designed for overcurrent protection in DC circuits such as solar photovoltaic combiner boxes and inverters

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first