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BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 40 A - Fast-Acting Cylindrical Fuses
BUSSMANNFast-Acting Cylindrical Fuses

BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 40 A

The BUSSMANN TPN Series Telecom Protection Fuse is a fast-acting cylindrical fuse designed for telecom applications. This model, MPN TPN-40, is rated for 40 A at 170 V DC. It provides overcurrent protection in a…

SKU 3G-OTH-28298

Also listed as: TPN40 · TPN 40

Brand
BUSSMANN
Item
Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 40 A
Category
Fast-Acting Cylindrical Fuses
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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.

Technical Specifications

BUSSMANN
Manufacturer Part Number
TPN-40
Series
TPN
Type
Fast-Acting, Cylindrical, 40 A
DC
170 V

Technical Documents

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

Product Description

The BUSSMANN TPN Series Telecom Protection Fuse is a fast-acting cylindrical fuse designed for telecom applications. This model, MPN TPN-40, is rated for 40 A at 170 V DC. It provides overcurrent protection in a compact cylindrical form factor.

Frequently Asked Questions

What is the BUSSMANN TPN-40 fuse used for?

The BUSSMANN TPN-40 is a fast-acting cylindrical fuse designed for telecom overcurrent protection. It is used in DC power distribution, rectifiers, and battery backup systems within telecommunications infrastructure to safeguard sensitive equipment from short circuits and overloads.

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

The BUSSMANN TPN-40 is rated for 40 A at 170 V DC. It is a fast-acting, cylindrical fuse from the TPN Series, with MPN TPN-40. Its compact form factor suits telecom power panels and DC distribution boards where space is limited.

Where to buy the BUSSMANN TPN-40 fuse worldwide?

3G Electric supplies the BUSSMANN TPN-40 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; we source and deliver this fuse to telecom operators and integrators globally.

How to select the correct BUSSMANN TPN series fuse for telecom systems?

Select the BUSSMANN TPN fuse based on your system's DC voltage (170 V max) and continuous current rating (40 A for TPN-40). Ensure the fuse's fast-acting characteristic matches the inrush profile of your telecom load. Always consult the equipment manual for recommended fuse sizing.

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 Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 20 A, 170 V DC (MPN TPN-20)
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BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 20 A, 170 V DC (MPN TPN-20)
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BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 1 A, 170 V DC (MPN TPN-1)
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BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 50 A, 170 V DC (MPN TPN-50)
BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 5 A, 170 V DC (MPN TPN-5)
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BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 10 A, 170 V DC (MPN TPN-10)
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BUSSMANN Telecom Protection Fuse: TPN Series, Fast-Acting, Cylindrical, 10 A, 170 V DC (MPN TPN-10)

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