Description
The Cylindrical Fuse Holders are designed for reliable performance in electrical systems, rated for an insulated voltage of up to 690V and operating at a frequency of 50Hz AC. With a conventional free air thermal current capacity of up to 125A, these fuse holders comply with GB13539.1, GB/T13539.2, and IEC60269-1 and IEC60269-2 standards. They support fuses sized up to 22x58mm and can effectively manage the heat generated during operation.
These holders also function as fuse disconnecting switches in multi-phase combinations. The RT18N model features two in/out lines, enabling a power cut function, while the RT18L model includes a safety lock to prevent incorrect operation when the fuse carrier is disconnected. An optional indicator light alerts users when the fuse link is broken, enhancing safety and operational efficiency.
Specifications
| Attribute | Details |
|---|---|
| Rated Insulated Voltage | Up to 690V |
| Working Frequency | 50Hz AC |
| Conventional Free Air Thermal Current | Up to 125A |
| Fuse Size Compatibility | Up to 22x58mm |
| Compliance | GB13539.1, GB/T13539.2, IEC60269-1, IEC60269-2 |
Additional Information
The Cylindrical Fuse Holders are engineered with a plastic-injected case that houses contacts and fuse links. The bases are either welded or riveted, ensuring durability and multi-phase structural capability. Models such as FB15C, FB16-3J, FB19C-3J, and RT19 offer open-structure designs, while others are semi-concealed. The RT18 series bases can be installed on DIN rails, with the RT18L model providing an added safety lock feature during disconnection.