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MERSEN FUSE 400V FA 20A. 6.32 MI6FA40V20
Mersen H203350 MI6FA40V20 very fast-acting semiconductor fuse rated at 20 A and 400 V AC in a compact 6.3 x 32 mm cylindrical cartridge format.
£2.86
Why Choose the Mersen H203350 High-Speed Fuse?
The Mersen H203350, also identified by the manufacturer reference MI6FA40V20, is a compact high-speed semiconductor fuse designed to protect sensitive electronic components against damaging overcurrents and short circuits. It forms part of Mersen’s FA range of very fast-acting miniature fuse-links for industrial electronic equipment.
Its rapid operating characteristics help limit the energy transmitted during an electrical fault, reducing the risk of damage to semiconductor devices and associated circuitry. The fuse combines a compact cylindrical format with a very high breaking capacity, making it suitable for densely populated control equipment and electronic protection systems.
With a rated current of 20 A, a maximum voltage rating of 400 V AC and a standard 6.3 × 32 mm cartridge size, the H203350 provides dependable protection where conventional general-purpose fuses may not operate quickly enough to safeguard sensitive components.
Key Advantages
- Very fast-acting fuse characteristic for semiconductor protection.
- 20 A current rating for higher-current electronic circuits.
- 400 V AC voltage rating for industrial electrical equipment.
- Compact 6.3 × 32 mm cylindrical cartridge format.
- Very high breaking capacity for reliable fault interruption.
- Helps minimise thermal and electrical stress on protected components.
Key Features
- Mersen FA semiconductor miniature fuse series.
- Manufacturer reference: MI6FA40V20.
- 20 A rated current.
- 400 V AC rated voltage.
- Very fast-acting operating characteristic.
- Designed for overcurrent and short-circuit protection.
- Compact cylindrical ceramic fuse construction.
- Suitable for installation in compatible fuse clips and holders.
Fast Protection for Sensitive Electronic Components
Semiconductor components can be damaged by fault currents before a standard fuse has time to operate. The Mersen H203350 is engineered with a very fast response that interrupts excessive current quickly, helping to reduce the amount of destructive energy reaching protected equipment.
Its compact 6.3 × 32 mm format allows it to be incorporated into control boards, power electronic equipment and industrial automation systems where installation space is limited. The ceramic cartridge construction supports reliable fault interruption in demanding electrical applications.
Typical Applications
- Semiconductor device protection.
- Industrial power electronic equipment.
- Control panels and automation systems.
- Power supplies and rectifier circuits.
- Electronic drives and control modules.
- Industrial machinery and production equipment.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | Semiconductor | |
| Fuse Class | Fast acting | |
| Manufacturer | Mersen | |
| Product reference | H203350 | |
| Alternative reference | MI6FA40V20 | |
| Product type | High-speed semiconductor fuse-link | |
| Fuse series | FA | |
| Rated current | 20 A | |
| Rated voltage | 400 V AC | |
| Operating characteristic | Very fast acting | |
| Fuse dimensions | 6.3 × 32 mm | |
| Body format | Cylindrical cartridge | |
| Breaking capacity | Very high breaking capacity | |
| Mounting method | Compatible fuse clip or fuse holder | |
| Approximate weight | 0.003 kg | |
| GTIN / EAN | 3605340176636 |
Frequently Asked Questions
What is the Mersen H203350 used for?
The Mersen H203350 is used to provide very fast overcurrent and short-circuit protection for sensitive semiconductor components and industrial electronic circuits.
What is the current rating of the H203350 fuse?
The fuse has a rated current of 20 A.
What voltage is the Mersen H203350 rated for?
The H203350 has a maximum rated voltage of 400 V AC.
What size is the H203350 fuse?
It uses a compact cylindrical cartridge measuring approximately 6.3 × 32 mm.
Is the H203350 a general-purpose fuse?
No. It is a very fast-acting fuse specifically designed to protect sensitive semiconductor devices and electronic equipment where rapid fault interruption is required.
Trusted Electrical Protection from Mersen
Mersen high-speed fuse-links are used by panel builders, equipment manufacturers and maintenance engineers to provide dependable protection for sensitive power electronic and industrial automation equipment.
