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MERSEN FUSE A 060 URD 32 LI 1250 A060URD32LI1250
High-speed aR characteristic fuse with ceramic body, striker indication, and slotted blade terminals for industrial semiconductor protection up to 1250A.
£173.10
Why Choose the Mersen C301072 High-Speed Semiconductor Fuse?
The Mersen C301072 is a Protistor® Size 32 high-speed semiconductor fuse engineered to provide maximum protection for today's power conversion equipment. Designed specifically for safeguarding IGBTs, thyristors, diodes and other semiconductor devices, it delivers ultra-fast fault interruption with low let-through energy to minimise damage during short-circuit conditions.
Manufactured with precision die-cut fuse elements embedded in solidified sand, silver-plated contact surfaces and non-magnetic hardware, the C301072 offers exceptional current-limiting performance and a high interrupting capacity. An integrated striker indicator enables simple fuse status monitoring and optional operation of a microswitch for remote indication.
With a 1250 A current rating, 550 V AC IEC / 600 V AC UL voltage rating and 200 kA breaking capacity, the Mersen C301072 is ideal for heavy-duty industrial drives, UPS systems, renewable energy converters and large power conversion installations requiring dependable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor fuse for critical power electronics.
- 1250 A current rating for high-power industrial applications.
- 550 V AC IEC / 600 V AC UL rated voltage.
- Low let-through energy helps minimise semiconductor damage.
- 200 kA AC breaking capacity for exceptional fault protection.
- Integrated striker indicator for maintenance and remote monitoring.
Key Features
- Mersen Protistor® Size 32 semiconductor protection fuse.
- Catalogue number A060UD32LI1250.
- 1250 A current rating.
- aR ultra-fast operating characteristic.
- Long slotted blade terminals.
- Silver-plated copper contact surfaces.
- Integrated striker indication.
- Designed for protecting IGBTs, SCRs, thyristors and diode modules.
Reliable Protection for Industrial Power Electronics
The Protistor® Size 32 range has been developed to provide state-of-the-art protection for semiconductor devices operating in demanding industrial environments. Its current-limiting characteristics reduce thermal stress and fault energy, helping extend equipment life while improving operational reliability.
The Mersen C301072 is widely suited to industrial motor drives, rectifiers, inverters, UPS systems and renewable energy converters where dependable protection of expensive semiconductor components is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor control equipment.
- Power converters and inverters.
- UPS and backup power systems.
- Renewable energy converters.
- Protection of IGBT, SCR and diode modules.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 550 V | |
| Item number | C301072 | |
| Catalogue No | A060UD32LI1250 | |
| Description | Square Body High-Speed Fuse Protistor® Size 32 aR 550VAC IEC 600VAC UL 1250A With Striker Slotted Blades long | |
| EAN/UPC Code | 3605340336368 | |
| Rated voltage AC UL | 600 V | |
| Rated voltage AC IEC | 550 V | |
| Ampere Rating | 1250 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 32 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 1950 kA²s | |
| Melting I2t | 410 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Slotted Blades | |
| Product Width | 59 mm | |
| Product Length | 153 mm | |
| Product Height | 65 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.2299 kg | |
| Sell Pack Width | 160 mm | |
| Sell Pack Length | 195 mm | |
| Sell Pack Height | 72 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.7433 kg | |
| Power Dissipation at Rated Current Value | 180 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen C301072 used for?
The Mersen C301072 provides ultra-fast short-circuit protection for industrial semiconductor devices including IGBTs, thyristors and rectifier diodes.
What is the current rating of the C301072?
The fuse has a rated current of 1250 A.
What voltage is the fuse rated for?
It is rated for 550 V AC (IEC) and 600 V AC (UL).
Does the fuse include an indicator?
Yes. The fuse incorporates an integrated striker indicator that can also operate a compatible microswitch for remote status indication.
What equipment is the C301072 suitable for?
It is commonly installed in industrial drives, UPS systems, power converters, renewable energy equipment and other high-power semiconductor applications.
Trusted Semiconductor Protection Worldwide
Mersen Protistor® semiconductor fuses are specified by OEMs, panel builders and maintenance engineers worldwide to protect critical power electronic equipment in demanding industrial applications.
