EXW Singapore — collect or forward from our Singapore office.

3G Electric
LITTELFUSE PSR031FS0800Z Very-Fast-Acting Threaded Flush-End Square Fuse - Very-Fast-Acting Threaded Flush-End Square Fuses
LITTELFUSEVery-Fast-Acting Threaded Flush-End Square Fuses

LITTELFUSE PSR031FS0800Z Very-Fast-Acting Threaded Flush-End Square Fuse

The LITTELFUSE PSR Series Semiconductor Fuse is a very-fast-acting threaded flush-end square fuse rated at 800 A, 700 V AC, and 600 V DC. This AC/DC voltage type fuse is designed for overcurrent protection in power…

SKU 3G-OTH-25581

Brand
LITTELFUSE
Item
PSR031FS0800Z Very-Fast-Acting Threaded Flush-End Square Fuse
Part Number
PSR031FS0800Z
Category
Very-Fast-Acting Threaded Flush-End Square Fuses
Available to Order
Also known as:PSR031FS0800ZLITTELFUSE
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.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

LITTELFUSE
Manufacturer Part Number
PSR031FS0800Z
Series
PSR
Type
Very-Fast-Acting, 800 A
AC
700 V
Voltage Type
AC/DC
DC DC Volt Rating
600 V

Technical Documents

No technical documents available for this product.
Request documentation →
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

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 rated at 800 A, 700 V AC, and 600 V DC. This AC/DC voltage type fuse is designed for overcurrent protection in power electronic circuits.

Frequently Asked Questions

What is the LITTELFUSE PSR Series semiconductor fuse used for?

The LITTELFUSE PSR Series semiconductor fuse is used for overcurrent protection in power electronic circuits, such as variable frequency drives, UPS systems, and rectifiers. Its very-fast-acting design safeguards sensitive semiconductor devices from short circuits and overloads.

What are the specifications of the LITTELFUSE PSR031FS0800Z fuse?

The LITTELFUSE PSR031FS0800Z is a very-fast-acting threaded flush-end square fuse rated at 800 A, 700 V AC, and 600 V DC. It is part of the PSR series and is designed for AC/DC voltage applications in industrial power electronics.

Where to buy LITTELFUSE PSR series fuses worldwide?

You can source the LITTELFUSE PSR series fuse from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring reliable supply for your operations.

How to select the correct LITTELFUSE PSR fuse for a circuit?

To select the correct LITTELFUSE PSR fuse, match the voltage rating (700 V AC or 600 V DC) and current rating (800 A) 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.

Used in

Common applications for LITTELFUSE
Industrial drives — Littelfuse PSR series semiconductor fuses for overcurrent protection of variable-frequency drives and DC bus circuits.
Branch circuit protection — Littelfuse CCMR series time-delay fuses in control panels and distribution boards.
Compact equipment — Littelfuse SLC series Class G fuses in rejection-style holders for space-constrained branch circuits.
Main service entrance — Littelfuse KLPC series Class L bolt-on fuses for high-current industrial power distribution.
Motor circuits — Littelfuse FLSR series Class RK5 time-delay fuses for motor branch circuits and transformers.
Power supplies — Littelfuse 473 series axial-lead time-delay fuses for solder-in protection in power supplies and instrumentation.
Not sure this is the right part? Photo-identify it→

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from LITTELFUSE

View all LITTELFUSE parts →
Very-fast-acting threaded flush-end square fuse rated 1.5 kA at 650 V AC and 500 V DC. Designed for overcurrent protection in industrial power electronics such as variable-frequency drives, rectifiers, and UPS systems
LITTELFUSE
Very-fast-acting threaded flush-end square fuse rated 1.5 kA at 650 V AC and 500 V DC. Designed for overcurrent protection in industrial power electronics such as variable-frequency drives, rectifiers, and UPS systems
Very-fast-acting threaded flush-end square fuse rated 160 A, 1300 V AC, and 1000 V DC. Designed for overcurrent protection in power electronics such as variable-frequency drives and rectifiers. AC/DC voltage type with rapid interruption capability
LITTELFUSE
Very-fast-acting threaded flush-end square fuse rated 160 A, 1300 V AC, and 1000 V DC. Designed for overcurrent protection in power electronics such as variable-frequency drives and rectifiers. AC/DC voltage type with rapid interruption capability

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first