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Product Description
NH1 63A-400A 500V/690V aR Blade Type High speed Fuse Link
Product Parameter
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Parameter
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Type
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NH1
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Class of Operation
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aR
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Test Standards
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IEC60269
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Rated Voltage Ue
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500V/690V
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Rated Breaking Capacity
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120kA/50kA
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20-Rated Current
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63-400A
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NH Fuse aR: The Precision Guardian for Semiconductor Protection
Introduction: The Critical Role of aR Fuses in Modern Electronics
NH Fuse aR (backup protection fuse) is engineered explicitly for safeguarding semiconductor devices-such as diodes, thyristors, and IGBTs-in high-stress electrical environments. Unlike general-purpose fuses (e.g., gG type), aR fuses specialize in ultra-rapid short-circuit interruption while delegating overload protection to other devices. This targeted design makes them indispensable in industries where semiconductor failure can cause catastrophic downtime, from industrial drives to renewable energy inverters and data center UPS systems .
