Introduction
The NT-P series fuse links are robust, low-voltage NH fuse links rated for AC 1140V, offering extreme protection in industrial panels and switchgear. These gG-type fuse links have a “knife contact” design and provide overload protection and short-circuit protection across the full current range. NT-P fuses are built to IEC 60269‑2 and GB/T 13539.2 standards, ensuring international compatibility. With sturdy ceramic construction and high interrupting capacity, typically 80–100 kA, the NT-P series is ideal for heavy-duty circuits in energy systems, motor feeders, and panelboards. As NH blade fuses, they fit standard NH fuse holders and bases, facilitating easy installation and replacement of NH fuses.
Structure and Features
The NT-P fuse link features a square ceramic body and double-sided knife contacts, providing a Low-Voltage, High-Performance Fuse design. Internally, a precision silver/copper melt element provides rapid response and low dissipation. The NT-P series includes built-in blow indicators on some models, and it is compatible with standard NH fuse holders and fuse bases. As with all NH blade fuses, the NT-P link isolates faults swiftly (pre-arcing I²t limiting) while maintaining reliable insulation. Its fuse breaking capacity and rugged construction make it suitable for switchgear, panel fuse blocks, and industrial safety circuits.
Advantages
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High Voltage & Current Rating: Rated for 1140VAC and up to 315A, handling large loads in global distribution systems.
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Full-Range Protection: gG-rated to protect against both overloads and short-circuits in one unit.
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Premium Materials: Ceramic body and plated copper contacts ensure stability under high fault stress.
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Global Standards Compliance: IEC 60269‑2 certi(compatible with DIN NH00–NH3 fuse systems).
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Simple Integration: Plug-in NH fuse cartridge design fits existing fuse bases and fuse holders (NH fuse base/cartridge), easing NH fuse replacement.
These features make NT-P fuse links ideal industrial safety fuses for power distribution panels and panel fuse applications. Each unit is factory-tested for performance and is UL/CE approved, ensuring reliable AC fuse protection worldwide
FAQs
How is NT-P different from NT-M fuses?
NT-P links are rated for higher voltage (1140V) and similarly cover NH1–NH3 sizes. Both are knife-type NH fuse links, but NT-P is designed for extra-high-voltage switchgear. Refer to the specifications above.
What fuse holders and bases are required?
NT-P fuses use standard NH fuse holders (DIN NH00–NH3). They plug into the same fuse bases used by NH00/1/2/3 blade fuses, so no special holder is needed (just match the correct NH size).
What standards and protection class do NT-P fuses meet?
They conform to IEC 60269-2 and GB/T 13539.2, and are gG (full-range) type. This means they provide both overload and short-circuit protection for general circuits.
Are these fuses suitable for switchgear applications?
Yes. NT-P fuse links are commonly used in industrial switchgear and distribution panels as NH blade fuses, providing short-circuit fuse protection with high breaking capacity.
Q: What does the “P” designation mean?
A: The “P” in NT-P typically indicates a fuse variant with an optional power-loss indicator. It otherwise matches the NT-M series construction, but at the 1140VAC rating.
