Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE 400V CP 10X38 AM 4A P FR10AM40V4P
Mersen FR10AM40V4P 10 × 38 mm aM cylindrical fuse-link with striker rated at 4 A and 400 V AC for industrial motor circuit protection.
£9.79
Why Choose the Mersen FR10AM40V4P Cylindrical Fuse with Striker?
The Mersen FR10AM40V4P is a high-performance 10 × 38 mm aM cylindrical fuse-link with striker designed to provide dependable short-circuit protection for motor circuits, motor starters and industrial switchgear. As part of the trusted Mersen FR10 aM fuse range, it delivers excellent current-limiting performance while allowing normal motor starting currents to pass without nuisance operation.
Manufactured with a robust ceramic body and silver-plated copper contacts, the FR10AM40V4P offers reliable electrical performance and a long operational life. Its integrated mechanical striker provides local fuse indication or can operate compatible auxiliary contacts for remote monitoring when the fuse has operated.
With a 4 A current rating, 400 V AC IEC rated voltage and a 100 kA breaking capacity, this fuse-link is ideal for protecting motor control circuits, industrial machinery and OEM equipment where dependable motor protection is essential.
Key Advantages
- Designed specifically for motor circuit short-circuit protection.
- 4 A rated current for industrial motor applications.
- 400 V AC IEC rated voltage.
- aM characteristic allows normal motor starting currents.
- Integrated mechanical striker for remote indication or auxiliary switching.
- 100 kA breaking capacity for reliable fault interruption.
Key Features
- Mersen FR10 aM series.
- 10 × 38 mm cylindrical fuse-link.
- 4 A rated current.
- 400 V AC rated voltage.
- aM partial-range motor protection characteristic.
- Integrated mechanical striker.
- Ceramic fuse body with silver-plated copper contacts.
- Suitable for compatible 10 × 38 mm fuse holders with striker support.
Reliable Motor Circuit Protection
The Mersen FR10AM40V4P is specifically engineered to protect motor circuits against destructive short-circuit currents whilst allowing motors to start normally without nuisance fuse operation. Its current-limiting design helps minimise damage to contactors, cables and switchgear during fault conditions.
When the fuse operates, the integrated striker extends mechanically to activate a compatible auxiliary contact for remote fault indication, machine shutdown or alarm signalling, helping maintenance personnel quickly identify and rectify electrical faults.
Typical Applications
- Motor starter protection.
- Motor control centres (MCCs).
- Industrial control panels.
- Machine building and OEM equipment.
- Industrial switchgear.
- Automation and production machinery.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Current | 4 A | |
| Voltage | 400 V | |
| Device Type | Accessory | |
| Fuse Type | Cylindrical | |
| Fuse Size | 10x38 mm | |
| Fuse Class | aM | |
| Manufacturer | Mersen | |
| Series | FR10 aM | |
| Model | FR10AM40V4P | |
| Manufacturer item number | Y085259 | |
| EAN / UPC | 3605340067811 | |
| Product type | Cylindrical fuse-link with striker | |
| Fuse characteristic | aM | |
| Rated current | 4 A | |
| Rated voltage | 400 V AC | |
| Breaking capacity | 100 kA AC | |
| Fuse size | 10 × 38 mm | |
| Indication system | Mechanical striker | |
| Mounting | Clip mounting | |
| Terminal type | Ferrule | |
| Terminal material | Silver-plated copper | |
| Body material | Ceramic | |
| Product dimensions | 10.3 × 38 mm | |
| Power dissipation | 0.2 W | |
| Weight | Approx. 9.2 g | |
| RoHS compliant | Yes |
Frequently Asked Questions
What is the Mersen FR10AM40V4P used for?
The FR10AM40V4P provides short-circuit protection for industrial motor circuits, motor starters and associated electrical equipment.
What does the aM fuse characteristic mean?
An aM fuse is a partial-range motor protection fuse designed to withstand normal motor starting currents whilst providing high-performance short-circuit protection.
What is the purpose of the striker?
The mechanical striker extends when the fuse operates and can activate compatible auxiliary contacts for remote fault indication, alarm signalling or control system feedback.
What are the voltage and current ratings?
The FR10AM40V4P is rated at 4 A and 400 V AC with a 100 kA breaking capacity.
Where is this fuse typically installed?
It is commonly installed in compatible 10 × 38 mm fuse holders within industrial control panels, motor starters, switchgear and OEM machinery.
Trusted by Electrical Professionals Worldwide
Mersen aM cylindrical fuse-links are trusted by panel builders, OEM manufacturers and maintenance engineers worldwide for dependable motor protection, excellent current-limiting performance and reliable operation in demanding industrial environments.
