NH Fuses
Sigma NH Blade Fuses belong to the fusible wire fuse group and ensure protection against overload currents and short circuits through the thermal melting and multi-point severance of the internal wire. Quartz sand fills the gaps between the severed parts, completely cutting off electrical conduction to provide the necessary protection.
Enhanced safety is achieved with the steatite body material, which is extremely resistant to short circuits, pressure, and high temperatures. Thanks to the dual-indicator design, the deactivation of the NH fuse can be easily observed, thereby ensuring reduced downtime and lower costs.
Constructed with silver contacts, quartz sand, a melting element, a flag (indicator), and a steatite body
Rated Current: Product variety up to 630A across NHC00, NH00, NH1, NH2, NH3 and NH4 sizes
Indicator: Easy fault detection capability thanks to the dual-indicator design
Short-Circuit Breaking Capacity: 120kA short-circuit breaking capacity
Body Type: Steatite body material resistant to short circuits, pressure, and high temperatures
High-speed response time
Manufactured in compliance with TS EN 60269-1 and IEC 60269-1 standards
Ensures energy efficiency with power losses significantly lower than those specified in TS EN and IEC standards
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