Siemens 3NE1224-0 SITOR Semiconductor Protection Fuse
The Siemens 3NE1224-0 is a high-performance SITOR semiconductor fuse link designed for the protection of power semiconductors. As a part of the SENTRON family, this NH-type fuse (Size 1) is specifically engineered for high-speed disconnection in the event of a short circuit. It is a critical safety component for protecting frequency converters, soft starters, and solid-state relays from thermal overload and catastrophic failure, ensuring the longevity of expensive power electronics.
Technical Specifications & Performance
Designed to meet the rigorous demands of modern power electronics, this fuse provides ultra-fast response times.
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Part Number: 3NE1224-0
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Rated Current: 160 A.
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Rated Voltage: 690 V AC / 440 V DC.
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Fuse Size: NH1 (Size 1).
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Operating Class: gS (Full-range semiconductor and cable protection).
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Breaking Capacity: 100 kA at 690 V AC.
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Design: Bolt-on version with slotted blades for secure mounting.
Key Benefits for Power Electronics Protection
The 3NE1224-0 stands out for its high switching capacity and low $I^2t$ values. By minimizing the energy let-through during a fault, it prevents damage to sensitive components like thyristors and diodes, reducing repair costs and system downtime.
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Dual Protection (gS Class): Protects both the sensitive semiconductor components and the connecting cables against overload and short circuits.
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Ultra-Fast Tripping: Specifically tuned for the high-speed requirements of power converters.
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Low Power Loss: Optimized design to minimize heat dissipation within the switchgear or control cabinet.
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Global Standards: Complies with international IEC and VDE standards for industrial safety.
Professional Commercial Support for Your Procurement
As specialized suppliers of Siemens industrial protection components, we provide the technical reliability and efficient logistics your procurement team requires.
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100% Genuine Siemens: We guarantee that every 3NE1224-0 is an original, brand-new factory product.
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Commercial Guidance: Our sales team is available to help you verify compatibility with your existing fuse holders and power electronics.
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Fast Global Shipping: We utilize an express logistics network to deliver your SITOR fuses quickly, ensuring your maintenance schedules are met.
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Ready-to-Ship Inventory: We maintain stock of critical semiconductor fuses to support urgent repairs and large-scale industrial projects.
