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MERSEN FUSE 500V CP 10X38 AM 12A C/I FR10AM50V12I
Mersen FR10AM50V12I 10 x 38 mm aM cylindrical fuse-link with visual indicator, rated 12 A and 500 V AC for industrial motor circuit short-circuit protection.
£1.60
Why Choose the Mersen FR10AM50V12I Cylindrical Fuse-Link?
The Mersen FR10AM50V12I is a high-performance aM cylindrical fuse-link designed to provide dependable short-circuit protection for motors, motor starters and associated industrial switching equipment. Manufactured by Mersen, it forms part of the established 10 × 38 mm IEC ferrule fuse range for demanding motor control applications.
Its aM partial-range operating characteristic allows normal motor starting currents to pass while rapidly interrupting dangerous short-circuit currents. This helps protect contactors, conductors and switchgear from the thermal and mechanical effects of severe electrical faults. A suitable overload relay or motor protection device should be used alongside the fuse to provide complete motor circuit protection.
Rated at 12 A and 500 V AC, the FR10AM50V12I combines a high 120 kA breaking capacity with compact dimensions. Its integrated visual indicator provides a clear indication when the fuse has operated, helping maintenance teams identify faults quickly and reduce equipment downtime.
Key Advantages
- Purpose-designed for motor circuit short-circuit protection.
- 12 A rated current for industrial motor applications.
- 500 V AC IEC rated voltage.
- Integrated visual indicator for rapid fuse status identification.
- 120 kA AC breaking capacity for high fault interruption performance.
- Compact 10 × 38 mm cylindrical format for control panels and switchgear.
Key Features
- Mersen FR10AM50V12I cylindrical fuse-link.
- aM utilisation category for motor circuit protection.
- 12 A rated current.
- 500 V AC rated voltage.
- 120 kA AC breaking capacity.
- 10 × 38 mm IEC cylindrical size.
- Integrated visual fuse operation indicator.
- Ceramic body with silver-plated copper contacts.
- Suitable for compatible clip-mounted cylindrical fuse holders.
Reliable Short-Circuit Protection for Motor Circuits
Electric motors can draw several times their normal running current during start-up. The aM characteristic of the Mersen FR10AM50V12I allows these temporary starting currents to pass without unnecessary fuse operation while providing rapid, current-limiting protection against severe short-circuit faults.
Because this is a partial-range fuse-link, it is intended to interrupt currents above its specified operating threshold rather than protect against every overload condition. It should therefore be coordinated with an appropriately selected overload relay or motor protection circuit breaker.
Typical Applications
- Industrial motor starters.
- Motor control centres.
- Contactors and overload relay assemblies.
- Industrial switchgear and control panels.
- Machine building and OEM equipment.
- Pumps, fans, conveyors and processing machinery.
Technical Specifications
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| Fuse Indication | Visual indicator | |
|---|---|---|
| Current | 12 A | |
| Voltage | 500 V | |
| Device Type | Fuse link | |
| Fuse Type | Cylindrical | |
| Fuse Size | 10x38 mm | |
| Fuse Class | aM | |
| Manufacturer | Mersen | |
| Series | Ferrule Fuse-links 10 × 38 aM 400 to 690 VAC | |
| Model | FR10AM50V12I | |
| Item number | D214110 | |
| EAN | 8430399008196 | |
| Product type | Cylindrical fuse-link | |
| Fuse characteristic | aM partial-range motor protection | |
| Rated current | 12 A | |
| Rated voltage | 500 V AC | |
| Current type | AC | |
| Rated breaking capacity | 120 kA AC | |
| Fuse size | 10 × 38 mm | |
| Product diameter | 10.3 mm | |
| Product length | 38 mm | |
| Body material | Ceramic | |
| Contact material | Silver-plated copper | |
| Terminal type | Ferrule | |
| Mounting type | Clip | |
| Indication system | Visual indicator | |
| Power dissipation at rated current | 0.82 W | |
| Product weight | Approx. 8.3 g | |
| Compliance | RoHS compliant | |
| HS Code | 85361050 |
Frequently Asked Questions
What is the Mersen FR10AM50V12I used for?
It is used to provide short-circuit protection for motors, motor starters, contactors and associated industrial switching equipment.
What does the aM fuse classification mean?
The aM classification identifies a partial-range fuse designed for motor circuits. It protects against high short-circuit currents and should be combined with a separate overload protection device.
What are the current and voltage ratings?
The FR10AM50V12I has a rated current of 12 A and a rated voltage of 500 V AC.
What is the purpose of the visual indicator?
The integrated visual indicator provides a clear indication when the fuse has operated, helping maintenance personnel identify a blown fuse quickly.
What size fuse holder is required?
This fuse is designed for use with a compatible 10 × 38 mm cylindrical fuse holder rated for the circuit voltage, current and prospective fault level.
Trusted by Industrial Professionals Worldwide
Mersen cylindrical fuse-links are widely used by electrical engineers, panel builders and machine manufacturers for dependable current limitation and reliable protection of industrial motor circuits.
