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LITTELFUSE Semiconductor Fuse: PSR Series, Very-Fast-Acting, 550 A, 1,300 V AC - Very-Fast-Acting Threaded Flush-End Square Fuses
LITTELFUSEVery-Fast-Acting Threaded Flush-End Square Fuses

LITTELFUSE Semiconductor Fuse: PSR Series, Very-Fast-Acting, 550 A, 1,300 V AC

The LITTELFUSE PSR Series Semiconductor Fuse is a very-fast-acting threaded flush-end square fuse designed for AC/DC applications. This model (MPN PSR073FL0550Z) is rated at 550 A, 1,300 V AC, and 1,000 V DC. It…

SKU 3G-OTH-26649

Brand
LITTELFUSE
Item
Semiconductor Fuse: PSR Series, Very-Fast-Acting, 550 A, 1,300 V AC
Category
Very-Fast-Acting Threaded Flush-End Square Fuses
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

LITTELFUSE
Manufacturer Part Number
PSR073FL0550Z
Series
PSR
Type
Very-Fast-Acting, 550 A
AC
1,300 V
Voltage Type
AC/DC
DC DC Volt Rating
1,000 V

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

Product Description

The LITTELFUSE PSR Series Semiconductor Fuse is a very-fast-acting threaded flush-end square fuse designed for AC/DC applications. This model (MPN PSR073FL0550Z) is rated at 550 A, 1,300 V AC, and 1,000 V DC. It provides overcurrent protection for power electronic circuits.

Frequently Asked Questions

What is the LITTELFUSE PSR Series semiconductor fuse used for?

The LITTELFUSE PSR Series semiconductor fuse (MPN PSR073FL0550Z) provides very-fast-acting overcurrent protection for power electronic circuits, such as inverters, drives, and UPS systems. Its high interrupting rating safeguards sensitive semiconductor devices from short circuits and overloads in AC/DC applications.

What are the specifications of the LITTELFUSE PSR073FL0550Z fuse?

The LITTELFUSE PSR073FL0550Z is a very-fast-acting threaded flush-end square fuse rated at 550 A, 1,300 V AC, and 1,000 V DC. It belongs to the PSR Series and is designed for AC/DC voltage types. This fuse provides reliable overcurrent protection for industrial power electronics.

Where to buy the LITTELFUSE PSR073FL0550Z fuse worldwide?

3G Electric supplies the LITTELFUSE PSR073FL0550Z semiconductor fuse worldwide. As a global industrial equipment 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 any country.

How to select the correct LITTELFUSE PSR Series fuse for your application?

To select the correct LITTELFUSE PSR Series fuse, match the voltage rating (AC/DC) and continuous current (550 A for this model) to your circuit requirements. Ensure the very-fast-acting characteristic aligns with the inrush current of your semiconductor load. Consult the manufacturer's data sheet for coordination and mounting details.

Used in

Common applications for LITTELFUSE
Power electronics protection — Littelfuse PSR Series semiconductor fuses for IGBT and diode protection in variable frequency drives.
Solar photovoltaic systems — Littelfuse SPF Series fast-acting fuses for string overcurrent protection in PV arrays.
Automotive electrical systems — Littelfuse MIDI® 498 Series bolt-on fuses for battery and alternator protection in vehicles.
Industrial control panels — Littelfuse KLKD Series midget fuses for branch circuit protection in control transformers and relays.
Motor control centers — Littelfuse BLF Series fast-acting fuses for short-circuit protection of motor starters and contactors.

LITTELFUSE Products

3G Electric supplies LITTELFUSE very-fast-acting threaded flush-end square fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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