# Eaton FWP-40A14F Cylindrical Semiconductor Fuse 14x51mm 40A 700V aR

**URL:** https://aio.lv/en/product--eaton-fwp-40a14f--10789778
**Data updated:** 2026-05-18 02:47 (EEST)
**Category:** Power Supplies (PSU)
**Manufacturer:** EATON
**Manufacturer code:** FWP-40A14F
**EAN:** 5027590151634
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Eaton FWP-40A14F is a high-speed cylindrical fuse designed for semiconductor protection. Featuring a 14x51mm form factor, this 40A, 700V aR class fuse provides reliable overcurrent protection for sensitive electronic components. It is engineered for industrial applications requiring fast-acting performance to safeguard power electronics, rectifiers, and converters against short circuits and overload conditions.

## Long description

The Eaton FWP-40A14F is a high-speed cylindrical semiconductor fuse designed to provide precise overcurrent protection for sensitive power electronics. With a compact 14x51mm form factor and a 40A current rating, this fuse is engineered to operate at voltages up to 700V. It belongs to the aR class, which signifies its capability to protect semiconductors against short circuits and overload conditions in demanding industrial environments.
Advantages
This fuse offers exceptional performance due to its fast-acting characteristics, which are essential for minimizing damage to expensive electronic components during fault conditions. Its robust construction ensures reliability in high-energy circuits, such as those found in power conversion equipment. The standardized cylindrical design allows for easy integration into existing fuse holders, making it a versatile solution for maintenance and new installations in industrial power systems.
Suitable for
Semiconductor protection
Power rectifiers
AC and DC drives
Power converters
Industrial power electronics
This fuse is not intended for general-purpose residential electrical protection or for circuits where slow-blow characteristics are required to handle high inrush currents. It is specifically optimized for semiconductor protection and may not provide the desired results in standard household appliance circuits.
Key specifications
Rated current: 40A
Rated voltage: 700V AC
Fuse size: 14x51mm
Utilization category: aR
Body type: Cylindrical
To use the Eaton FWP-40A14F, ensure that the circuit is de-energized before installation. Insert the fuse into a compatible 14x51mm fuse holder or clip, ensuring a secure fit to prevent overheating due to contact resistance. Verify that the circuit parameters, including voltage and current, do not exceed the rated values of the fuse to maintain safe operation.
What to consider before purchase
Verify the current and voltage requirements of your specific application
Ensure compatibility with your existing 14x51mm fuse holder
Confirm that the aR class is appropriate for your semiconductor protection needs
Usage recommendations
Always replace the fuse with one of the same type and rating to ensure continued protection of your equipment. Do not attempt to repair or bypass a blown fuse.

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### What is the warranty period?

All EATON products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized EATON service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

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## Image

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