Need more information?
Mersen B301301
Size 73 type TTF M12 threaded terminals 3 aR 1600 A 690VAC
Product Description
The Size 73 Protistor® fuse-link operates at a rated voltage of 690 VAC and is designed to handle 1600 A, providing critical protection for power conversion equipment. The fuse-link features an ultra-fast acting aR characteristic, essential for safeguarding semiconductor devices such as diodes, thyristors, and IGBT components.
Constructed with die-cut elements embedded in solidified sand, the fuse-link minimizes arcing characteristics, resulting in a lower I²t and a high interrupting rating of 150 kA. The body is made from ceramic, ensuring durability, while the connection terminals are silver-plated brass, enhancing conductivity and reducing corrosion. Additionally, the fuse-link can be equipped with a low voltage trip-indicator, compatible with a field mountable microswitch, allowing for effective monitoring.
This Protistor® fuse-link is available in various mounting styles, ensuring flexibility in equipment design and installation. The melting I²t value is rated at 1430 kA²s, with a power dissipation of 203 W at the rated current value. The product is suitable for various applications, aligning with IEC and UL standards.
Need more information?
Offer details
- Offer from:
Trusted supplier — Italy, member since 2021, 10–19 employees - Availability:
- On requestLead time to be confirmed
- Warranty:
- 12 months
- Condition:
- New Factory Sealed
Specifications
- Brand
- Mersen
- Ampere Rating
- 1600 A
- Rated Voltage Ac Iec
- 690 V
- Rated Voltage Ac Ul
- 700 V
- Ac Max I R Breaking Capacity I1
- 150 kA
- Clearing I2T At Rated Voltage
- 5740 kA²s
- Melting I2T
- 1430 kA²s
Available Offers
(1)| Condition | Availability | Supplier | Warranty | Action | |
|---|---|---|---|---|---|
 | Condition New Factory Sealed | Availability On requestLead time to be confirmed | SupplierItalyTrusted supplier — member since 2021, 10–19 employees | Warranty 12 months |
Offer with manufacturer lead time
Directly from the manufacturer - with a confirmed, predictable, and fully transparent delivery time.
Documents
Data Sheet
Datasheet for Mersen B301301, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
Product data updated: 19-09-2026
Market insights for B301301
Get real-time analytics and market data for B301301 and other products from the Circuit Breakers & Fuses category to optimize your purchasing decisions
- Real-time stock availability data from 700 MRO distributors in Europe and USA
- Price analysis by condition (new, used, refurbished) with market median prices
- Critical component availability monitoring to prevent production downtime