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BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 40 A, 600 V AC - Fast-Acting Cylindrical Fuses
BUSSMANNFast-Acting Cylindrical Fuses

BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 40 A, 600 V AC

The BUSSMANN DFJ Series is a fast-acting cylindrical fuse, specifically a Class J device rated at 40 A, 600 V AC, and 450 V DC. This fuse, with manufacturer part number DFJ-40, is designed for overcurrent protection…

SKU 3G-OTH-133125

Also listed as: DFJ40 · DFJ 40

Brand
BUSSMANN
Item
Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 40 A, 600 V AC
Category
Fast-Acting 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
DFJ-40
Type
Class J, Cylindrical Body, Fast-Acting, 40 A
AC
600 V
DC
450 V

Technical Documents

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

Product Description

The BUSSMANN DFJ Series is a fast-acting cylindrical fuse, specifically a Class J device rated at 40 A, 600 V AC, and 450 V DC. This fuse, with manufacturer part number DFJ-40, is designed for overcurrent protection in industrial electrical circuits.

Frequently Asked Questions

What is the BUSSMANN DFJ-40 fuse used for?

The BUSSMANN DFJ-40 is a Class J fast-acting cylindrical fuse rated 40 A, 600 V AC, and 450 V DC. It provides overcurrent protection in industrial electrical circuits, such as motor control centers, panelboards, and branch circuits, where high interrupting capacity and current-limiting performance are required.

What are the specifications of the BUSSMANN DFJ-40 fuse?

The BUSSMANN DFJ-40 is a Class J, cylindrical body, fast-acting fuse rated 40 A, 600 V AC, and 450 V DC. Its manufacturer part number is DFJ-40. It is designed for overcurrent protection in industrial applications, offering current-limiting performance to reduce let-through energy during faults.

Where to buy BUSSMANN DFJ-40 fuses worldwide?

3G Electric supplies the BUSSMANN DFJ-40 fuse to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Class J fast-acting fuse rated 40 A, 600 V AC, and 450 V DC.

How to select the correct BUSSMANN DFJ-40 fuse for an application?

To select the BUSSMANN DFJ-40, verify your circuit's voltage (600 V AC or 450 V DC max) and continuous current (40 A). Ensure the Class J rejection-style holder matches the fuse's dimensions. For motor circuits, confirm the fast-acting characteristic aligns with inrush requirements. Consult a qualified engineer for coordination studies.

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 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: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 10 A, 600 V AC, 450 V DC (MPN DFJ-10)
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BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 10 A, 600 V AC, 450 V DC (MPN DFJ-10)
BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 45 A, 600 V AC, 450 V DC (MPN DFJ-45)
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BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 45 A, 600 V AC, 450 V DC (MPN DFJ-45)
BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 8 A, 600 V AC, 450 V DC (MPN DFJ-8)
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BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 8 A, 600 V AC, 450 V DC (MPN DFJ-8)
BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 20 A, 600 V AC, 450 V DC (MPN DFJ-20)
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BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 20 A, 600 V AC, 450 V DC (MPN DFJ-20)
BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 15 A, 600 V AC, 450 V DC (MPN DFJ-15)
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BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 15 A, 600 V AC, 450 V DC (MPN DFJ-15)
BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 25 A, 600 V AC, 450 V DC (MPN DFJ-25)
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BUSSMANN Fuse: DFJ Series, Class J, Cylindrical Body, Fast-Acting, 25 A, 600 V AC, 450 V DC (MPN DFJ-25)

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