Fuse link - NH4a gTr 231A/400V/160kVA - transformer 004116404

Safety and protection of transformers – NH4a gTr fuse link

The NH4a gTr 231A/400V/160kVA fuse link is a reliable safety element for electrical installations, especially transformers. Designed to protect against the effects of short circuits and overloads, it ensures uninterrupted power supply and minimizes the risk of damage. Its gTr characteristic makes it ideal for applications where a delayed response to short-term current surges is required – typical for starting motors or powering transformers.

Design and application

The NH4a fuse link is manufactured in accordance with VDE 0636-2011 standard, which guarantees its high quality and safety. Designed for use in alternating current (AC) circuits with a rated voltage of 400V and a rated current of 231A, it is perfect for installations with a power of up to 160kVA. It has a top indicator of operation, which facilitates quick identification of a blown fuse. The lack of metal insulated grips (IMGL) simplifies mounting and dismounting.

Key features and benefits

• Transformer protection: The special gTr characteristic provides effective protection of transformers against overloads and short circuits, which translates into a longer lifespan of devices and minimization of repair costs.
• High short-circuit interrupting capacity: The short-circuit interrupting capacity at the level of 100kA guarantees the safety of the installation even in the event of serious failures.
• Fast fault identification: The top indicator allows for quick and easy detection of a blown fuse, reducing installation downtime.
• Compliance with standards: Meeting the requirements of VDE 0636-2011 standard confirms the high quality of the product and its compliance with applicable safety standards.
• Universal application: Ideal for protecting various types of transformers in industrial and energy installations.
• Low power loss: Power losses at the level of 18W minimize energy losses in the installation.

By choosing this fuse link, you are investing in reliable protection of your electrical installation and ensuring peace of mind related to its safe operation. It is an essential element for every professional involved in the assembly and servicing of electrical systems, as well as for end-users who care about the safety of their devices.