DNT2-R1L Semiconductor Fuse Overview
The GRL DNT2-R1L Semiconductor Fuse is a high-performance Ultra-Rapid Fuse, expertly engineered by GRL Fuse to deliver instantaneous and definitive Power Semiconductor Protection in demanding industrial and renewable energy systems. Designed for circuits up to 1300V AC Fuse, the DNT2-R1L represents the pinnacle of High Voltage Fuse technology, safeguarding sensitive and costly power electronic components.
As a certified aR Fuse, this link is non-negotiable for protecting devices like IGBTs and Thyristors. Its core advantage lies in its capacity to achieve an Extremely Low ![]()
Value, which is critical for limiting the destructive thermal energy during a short-circuit fault. Choosing the DNT2-R1L ensures superior System Reliability and dramatically maximizes the lifespan of your valuable Power Electronics.
DNT2-R1L Semiconductor Fuse Features
The GRL DNT2-R1L’s Ultra-Rapid response is rooted in advanced material science and engineering:
- Precision Silver Elements: Inside the ceramic body, multiple fuse elements made of pure silver are precisely profiled. This unique profiling is designed to create multiple points of simultaneous melting, ensuring a break-neck Fast Acting Fuse speed.
- High-Density Arc-Quenching: The internal cavity is densely packed with high-purity quartz sand. This sand rapidly absorbs the energy from the arc, ensuring successful and safe Fault Clearance even at the fuse’s maximum 100kA High Interrupting Capacity.
- True Current Limiting Fuse Action: The fuse functions as an active Current Limiting Fuse, where the arc voltage developed across the fuse opposes the system voltage, rapidly driving the fault current to zero well before the peak is reached. (FAQ Integrated: What does ‘Current Limiting’ mean for my system? It means the fuse not only interrupts the current but actively limits the magnitude of the fault current, preventing high-force mechanical and thermal stress on all downstream components.)
DNT2-R1L Semiconductor Fuse Advantages
The DNT2-R1L is an essential component for engineers focused on safety, longevity, and performance in Medium Voltage Industrial Fuse environments.
- Extended Component Lifespan: The low thermal let-through energy (Low
![]()
Value) ensures your Thyristor Protection and IGBT Protection are absolute, reducing maintenance costs and avoiding premature component failures. - Ready for High-Power Density: Specifically rated as a 1300V AC Fuse, it meets the stringent requirements of modern, high-power density converters and inverters that demand robust High Voltage Fuse capability.
- Safety Guaranteed: Adherence to IEC 60269-4 and its 100kA HIC rating ensures the fuse safely interrupts massive short-circuits without risk of catastrophic failure.
DNT2-R1L Semiconductor Fuse Applications
The GRL DNT2-R1L series is trusted in critical high-power applications worldwide
DNT2-R1L Semiconductor Fuse FAQs
Q1: Why is a dedicated aR Fuse better than a general-purpose fuse for my Power Electronics?
A: A general-purpose (gG) fuse must handle both small overloads and high short-circuit faults, leading to slower response times. An aR Fuse like the DNT2-R1L sacrifices overload capability to be optimized purely for high-current, Short-Circuit Protection, offering the rapid response speed necessary for the microsecond-level reaction time required for IGBT Protection.
Q2: Does the DNT2-R1L Fuse Link require special mounting hardware?
A: The DNT2-R1L uses a standard Square Body Fuse with bolt-down terminations, common in Medium Voltage Industrial Fuse applications. While the dimensions are generally compatible with international standards (like DIN 43653), always use a fuse holder or mounting block rated for the full 1300V AC and the fuse’s current range to ensure a secure, low-resistance connection.
