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MERSEN FUSE 400V FA 12,5 A 6.32 P MI6FA40V12.5P
Mersen Y093171 high-speed miniature semiconductor fuse, catalogue number MI6FA40V12.5P, rated 12.5 A and 400 V AC in a 6.3 × 32 mm ceramic clip-mounted cartridge with striker indication.
£15.48
Why Choose the Mersen Y093171 Miniature Semiconductor Fuse?
The Mersen Y093171 is a high-performance 6.3 × 32 mm high-speed semiconductor fuse designed to provide rapid protection for sensitive electronic components and power-semiconductor devices. Also identified by catalogue number MI6FA40V12.5P, it has a rated current of 12.5 A and a rated voltage of 400 V AC.
Part of the Mersen FA/FB miniature semiconductor fuse series, the Y093171 features a very fast-acting characteristic that helps minimise the electrical energy transferred to protected components during a fault. This rapid interruption helps protect semiconductors, converters, rectifiers and industrial control equipment against damaging overcurrents and short circuits.
The Y093171 is manufactured with a durable ceramic insulating body and ferrule terminals for clip mounting in compatible fuse holders. An integrated striker provides a clear mechanical indication after the fuse has operated, supporting faster fault identification and more efficient maintenance.
Key Advantages
- High-speed protection for semiconductor and power-electronic circuits.
- 12.5 A rated current for industrial electronic equipment.
- 400 V AC rated voltage.
- Compact 6.3 × 32 mm ceramic cartridge.
- 150 kA minimum interrupting rating for dependable fault clearance.
- Integrated striker assists with rapid identification of an operated fuse.
Key Features
- Mersen FA/FB miniature semiconductor fuse series.
- Item number: Y093171.
- Catalogue number: MI6FA40V12.5P.
- 12.5 A rated current.
- 400 V AC rated voltage.
- High-speed FA operating characteristic.
- 6.3 × 32 mm cylindrical cartridge.
- Ceramic insulating body.
- Ferrule terminals for clip mounting.
- Integrated striker indication system.
High-Speed Protection for Sensitive Electronic Equipment
Semiconductor devices can be permanently damaged when excessive fault energy passes through a circuit. High-speed fuses interrupt abnormal currents rapidly, helping reduce peak current, thermal stress and the total energy transferred to sensitive electronic components.
The Mersen Y093171 combines a very high interrupting rating with compact ceramic construction and an integrated striker. When correctly selected and coordinated with the protected equipment, it provides dependable protection while supporting faster inspection and maintenance following a fault.
Typical Applications
- Industrial power supplies.
- Semiconductor protection circuits.
- Power converters and rectifiers.
- Automation and control equipment.
- Electronic drives and switching systems.
- OEM electrical and electronic assemblies.
Technical Specifications
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| Current | 12.5 A | |
|---|---|---|
| Fuse Indication | Striker | |
| Voltage | 400 V | |
| Device Type | Fuse link | |
| Fuse Type | Miniature, Semiconductor | |
| Fuse Size | 6.3x32 mm | |
| Manufacturer | Mersen | |
| Series | FA/FB Miniature Semiconductor Fuses | |
| Model | Y093171 | |
| Catalogue number | MI6FA40V12.5P | |
| Product type | Miniature semiconductor fuse | |
| Fuse format | Cylindrical cartridge | |
| Fuse size | 6.3 × 32 mm | |
| Rated current | 12.5 A | |
| Rated voltage | 400 V AC | |
| Electrical system | AC | |
| Speed / characteristic | High speed | |
| Design characteristic | FA | |
| Minimum interrupting rating | 150 kA | |
| Melting I²t | 4.5 A²s | |
| Clearing I²t at rated voltage | 47 A²s | |
| Mounting type | Clip mounting | |
| Connection type | Ferrule | |
| Indication system | Integrated striker | |
| Body / insulating material | Ceramic | |
| Product diameter | Approx. 6.3 mm | |
| Product length | Approx. 32 mm | |
| Product weight | Approx. 2.7 g | |
| EAN / UPC | 3605340116366 | |
| RoHS compliant | Yes | |
| Manufacturer sell-pack quantity | 10 pieces |
Frequently Asked Questions
What is the Mersen Y093171 used for?
The Y093171 is a high-speed miniature fuse designed to protect sensitive semiconductor devices and electronic circuits against damaging overcurrent and short-circuit faults.
What are the electrical ratings of the Y093171?
The fuse has a rated current of 12.5 A and a rated voltage of 400 V AC.
What size is the Mersen Y093171?
It is manufactured in the standard 6.3 × 32 mm cylindrical cartridge format.
What is the interrupting rating of this fuse?
The Mersen Y093171 has a minimum interrupting rating of 150 kA.
What is the purpose of the integrated striker?
The striker provides a mechanical indication after the fuse has operated, helping maintenance personnel identify a blown fuse more quickly.
Trusted by Electronics and Electrical Professionals
Mersen miniature semiconductor fuses are trusted by equipment manufacturers, automation engineers and maintenance professionals for rapid fault interruption, dependable indication and reliable protection of sensitive power-electronic systems.
