SEF-1697-1-005

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Fuses are electrical components designed to protect electrical circuits or components from overload. They operate by interrupting the current flow through a circuit when the current exceeds a pre-specified limit. The SEF-1697-1-005 electrical fuse is such a device. It is approved for UL 1077 (Supplement SB) and is typically used for surge protection, typically installed across a single phase line on a pole or other outdoor locations, designed to protect life and property. This article introduces the application field and working principle of the SEF-1697-1-005 electrical fuse.

The SEF-1697-1-005 is a two-pole fuse, approved for installation on a two-wire circuit. It is designed for outdoor use in wet locations. The application field for the SEF-1697-1-005 electric fuse includes: (1) professional circuits; (2) agriculture circuits; (3) residential and commercial circuits; (4) generator circuits; (5) lighting circuits; (6) temporary construction, demolition, and/or maintenance circuits.

The SEF-1697-1-005 comes in the form of a cylindrical metal canister, which is filled with an inert gas and closed air tight by a prefabricated cover at the top. The cover has an external diameter of 13 millimeters. Inside the canister, a fuse element is mounted in the center. This element is made of silver-plated copper material, and it is attached to a circular frame made of steel. The frame is filled with an inert gas and sealed inside the canister. The fuse element is connected to the two poles, and when the current exceeds the set limit, it will melt down, thereby stopping the current through the circuit.

The SEF-1697-1-005 electric fuse operates on the principle of time-current limit. When current passes through the fuse element, its temperature rises in proportion to the current. When the fuse element reaches the set limit, its temperature reaches the melting point and it will melt down. This process of melting the fuse element prevents the over-current from continuing to pass through the circuit, thereby protecting both life and property.

The SEF-1697-1-005 electric fuse is designed for single phase, UL 1077 (Supplement SB) certified applications. It has a voltage rating of 120/240 Volt AC, with current ratings ranging from 15 to 100 amperes. It is rated for a 3-second disconnect time, with a maximum operating temperature ranging from -65 F to 200 F. It requires a 1.25” mounting hole, and comes in a waterproof, corrosion resistant, ABS housing. It is available in two mounting configurations: with one side ungrounded and the other side grounded; or with both sides ungrounded.

The SEF-1697-1-005 electric fuse is designed for indoor and outdoor use, and is suitable for a variety of applications. It is ideal for protecting residential and commercial circuits, generator circuits, agriculture circuits, and professional circuits. It is UL 1077 (Supplement SB) certified, and has a 3-second disconnect time. It requires a 1.25” mounting hole, and is available in two mounting configurations.

The specific data is subject to PDF, and the above content is for reference