MERSEN A70QS500-4IL Semiconductor Fuse
The MERSEN A70QS500-4IL Amp-Trap® fuse is engineered for demanding 700V semiconductor applications, offering superior protection for dynamic solid-state equipment like motor drives and UPS systems. It features a very fast-acting speed and exceptionally low I2t values to safeguard sensitive components. Designed for reliability, it boasts superior cycling ability for extended life under high cyclic loading and cooler operation due to low watts loss. Its ultra-compact size also facilitates equipment down-sizing, and the bolted blade design includes a trigger indicator for easy status monitoring.
$630.28
Owner Satisfaction
4.5
/ 5
Category Rank
57
/ 68
#57 in Passive Circuit Components
Price vs Category Average
+19%
Above average
Amperage Rating
500
/ A
Who it's for
- Superior Circuit Protection
- High Interrupting Capacity
- Trusted Industry Standard
Who should skip it
- Significant Replacement Cost
- Highly Specific Application Needs
- Requires Manual Replacement
Key Specs
Amperage Rating
500A
Voltage Rating
700V AC/DC
Speed
Very Fast Acting
Class
Semiconductor
Series
A70QS
Mounting Type
Bolt-Down
Package Type
Bolted Blade IL Indicator
Features
- Enhanced equipment protection with very low I2t
- Long, reliable life under high cyclic loading
- Cooler operation with low watts loss
- Versatile 700V AC/DC rating
- Compact size for equipment down-sizing
- Integrated trigger indicator for status monitoring
- Superior protection for solid-state devices
- Very fast acting for critical applications
What customers say
Users consistently highlight the exceptional reliability of the MERSEN A70QS500 4IL, emphasizing its critical role in protecting sensitive equipment. The overwhelming sentiment centers on quality assurance; customers trust this fuse to perform precisely when needed, offering essential peace of mind in high stakes environments. This dependable consistency is the core value proposition, ensuring operational continuity and justifying its premium positioning within the market.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$630