
J301193 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $156.60 | Condition is New, 1Pcs New For Ferraz Shawmut Fuse 900V 1250A A100UD73LI1250 J301193, FREE SHIPPING | 100.0% |
![]() | $157.25 | Condition is New, NEW FERRAZ J301193 PROTISTOR FUSE 1250 A/AMP FUSE 1000V, FREE SHIPPING | 100.0% |
![]() | $198.00 | Condition is New, 1Pcs New For Ferraz Shawmut Fuse 900V 1250A A100UD73LI1250 J301193, FREE SHIPPING | 100.0% |
![]() | $397.68 | Condition is New, 1PC NEW FIT FOR Ferraz Shawmut Fuse A100UD73LI1250 J301193 900V 1250A, FREE SHIPPING | 97.8% |
![]() | $450.00 | Top Pick! Condition is New, Ferraz Shawmut A100UD73LI1250 1000V Protistor Semiconductor Fuse J301193 (B145), shipping cost = $25.00 | 99.9% |
![]() | $591.00 | Condition is New, 1PC New For Ferraz Shawmut A100UD73LI1250 1000V 1250A J301193 Fuse replacement, FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $38.00 | Condition is Used, Ferraz Protistor J301193 1000V 1250A, shipping cost = $13.59 | 99.8% |
![]() | $85.00 | Top Pick! Condition is Used, Ferraz Protistor J301193 Fuse 1000VAC 1250A, FREE SHIPPING | 99.7% |
![]() | $85.00 | Top Pick! Condition is Used, FERRAZ SHAWMUT PROTISTOR SEMICONDUCTOR, J301193, 1000 VOLT, 1250 AMP, shipping cost = $10.00 | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $184.99 | Condition is New other (see details), Ferraz Shawmut J301193 Protistor Semiconductor Fuse 1000V-1250A NOS, FREE SHIPPING | 99.9% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $315.99 | Condition is New – Open box, FERRAZ J301193 A100URD73LI1250 1250AMP 1000V PROTISTOR FUSE NEW!, FREE SHIPPING | 99.3% |

The Ferraz Shawmut J301193 Protistor Semiconductor Fuse is a high-performance electrical component designed for use in various industrial and commercial applications. This fuse is specifically rated for voltage ranges between 1000 volts and 1250 volts, and current capacities up to 1250 amperes.
The Protistor design of this fuse offers several advantages over traditional fuse types. It utilizes a semiconductor element that provides superior current limiting characteristics and allows for faster response times during short circuits or overloads. The semiconductor material also enables the fuse to operate effectively in both AC and DC circuits.
The J301193 model has a maximum continuous current rating of 1250 amperes and a melting curve that ensures reliable and consistent tripping action. Its low melting point ensures that the fuse will activate quickly to protect your circuitry from damage during overcurrent conditions. The fuse body is made from a robust material that can withstand high temperatures and harsh environments, ensuring longevity and reliability.
This fuse comes in a NO (Normally Open) configuration, meaning it does not conduct current under normal operating conditions. It is designed to open or interrupt the circuit when an overcurrent condition is detected, thereby preventing potential damage to the system. The fuse is also rated for a maximum operating temperature of 155 C, providing excellent thermal stability and ensuring safe operation even under heavy loads.
The Ferraz Shawmut J301193 Protistor Semiconductor Fuse is an essential component for protecting electrical systems from damage caused by overcurrent conditions. Its fast-acting design, wide voltage range, and high current capacity make it a versatile and reliable solution for a variety of industrial and commercial applications. Its robust construction ensures long-lasting performance even in challenging environments.
The Ferraz Shawmut J301193 Protistor Semiconductor Fuse is a 1000V-1250A fuse used to protect electrical circuits from overcurrent conditions. Here are some potential pros and cons of buying this fuse:
Pros:1. High Voltage Rating: This fuse has a voltage rating of 1000V, making it suitable for high voltage electrical systems.
2. High Current Rating: With a current rating of 1250A, this fuse can handle a significant amount of electrical current.
3. Semiconductor Design: The semiconductor design of this fuse offers fast blow time, meaning it can quickly interrupt the circuit in case of an overcurrent condition.
4. Low Rds(on): Semiconductor fuses have a low Rds(on) value, which means they have low resistance when conducting current, making them ideal for applications where minimal voltage drop is required.
Cons:1. Cost: Semiconductor fuses tend to be more expensive than traditional fuses due to their more complex design and manufacturing process.
2. Handling Precautions: Semiconductor fuses require more careful handling than traditional fuses due to their fragile nature and sensitivity to electrical surges and static electricity.
3. Limited Availability: Semiconductor fuses may not be as widely available as traditional fuses, making it important to order them from a reputable supplier to ensure quality and availability.
Ending Conclusion:The Ferraz Shawmut J301193 Protistor Semiconductor Fuse is a high-performance fuse suitable for applications requiring a high voltage and current rating, fast blow time, and minimal voltage drop. However, it comes with a higher cost and requires more careful handling than traditional fuses. If these factors are acceptable for your application, then this fuse could be an excellent choice.
Recommendation:If you require a high voltage and current rating fuse with fast blow time and minimal voltage drop, then the Ferraz Shawmut J301193 Protistor Semiconductor Fuse is a recommended option. However, it's essential to ensure that you order it from a reputable supplier to ensure quality and availability. Additionally, be sure to handle it with care due to its fragile nature and sensitivity to electrical surges and static electricity.
Details:
All parts are in stock and ready to ship. Items are shipped using USPS, ups, and FedEx. If the original package is included it may show signs of wear. Protistor semiconductor fuse 1000v-1250a is new and in good condition, not original packaging.
Thumbnails. Ferraz Shawmut J301193 protistor semiconductor fuse 1000v-1250a nos. Shows signs of shelf wear.
specifications fuseaud:
- brand: Ferraz Shawmut
- mpn: J301193
- type: Protistor Semiconductor Fuse 1000v-1250a
seller fuseaud:
- city: ashaway, rhode island
- # reviews: 120669
- rating: 99.9%
offer fuseaud:
- prices: $38.00–$591.00
- item condition:
- New
- Used
- New other (see details)
- New – Open box
- sold #: 11
- in stock #: 5
- availability: in stock
- options: ship-to-home
- started: december 13, 2025
general fuseaud:
- category: Electronics > Vehicle Gps > Car Audio Video Installation > Fuses Holders
payments fuseaud:
- credit card: mastercard
- wallet: apple-pay
- other
shipping fuseaud:
- service: standard
- type: fixed
- class: standard
- transit: 4-9 days
returns fuseaud:
- method: money back
- policy: returns accepted
- paid by: seller
- time: 30 days
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