
Edison Fuses

Edison fuses are a well-known product line often associated with Cooper Industries, which is now part of Eaton. These fuses come in various types, each designed to meet specific needs, offering both time-delay and fast-acting options. Time delay fuses are particularly useful in situations where temporary surges are common, as they allow for a brief period of overload before activating. This can help to prevent nuisance tripping and is often found in motor control and inductive load applications.
Edison fuses features current-limiting fuses which are designed to react quickly in the event of an overcurrent situation, reducing the let-through energy and thereby offering additional protection for both electronic equipment and people involved.
The products offered by Edison go beyond just the standard line of fuses; they also offer specialty products that fit very particular needs. This makes them versatile and beneficial to a wide range of customers, from industrial setups to smaller business operations. The variety in their product line, from dual-element to other specialized types, demonstrates the depth of Edison's commitment to providing comprehensive solutions for circuit protection.
Products
More Information about Edison Fuses
Edison Class RK1 duel-element time delay fuses are recommended for AC power distribution mains, feeders and branch circuits for transformers and motors, as well as non-inductive loads such as heating and lighting. They offer ratings up to 600 A with superior current limitation, cycling and overload capabilities.
Edison Class RK1 fast-acting fuses are recommended for general power distribution system use for main, feeder and branch circuits having a high percentage of non-inductive loads such as lighting and heating. They are physically interchangeable with other R class fuses and will replace Class K or Class H fuses in standard fuse clips.
Edison Class RK5 duel-element time delay fuses are recommended for AC power distribution mains, feeders and branch circuits for transformers and motors, as well as non-inductive loads such as heating and lighting, where the available short-circuit current does not exceed 200,000 RMS symmetrical amperes.
Edison Class L time-delay or LCU fast-acting fuses are recommended for high-capacity main, feeder or branch circuits in power distribution systems for special applications such as system upgrading and install ahead of network protectors.
Breakers vs Fuses
Fuses
Fuses are safety devices that are intended to provide protection to both equipment and people in the event of a power surge or an overcurrent situation. A fuse can provide this protection by using a small piece of wire that is sacrificial, and is intended to burn up when too much current is passed through it. When this happens, the fuse eliminates the flow of electricity in that circuit until it is replaced. The size and type of wire that is used in the fuse will dictate how much current can pass through that individual fuse. So the main thing to remember is, when a fuse blows, it must be replaced and cannot be reused.
Circuit Breakers
Circuit breakers are intended to be reused after they are “tripped” during a power surge or an overcurrent situation. Much like fuses, circuit breakers are designed to trip at a certain current level. This is intended to protect both equipment and anyone in the area of that particular circuit. Circuit breakers can be found in just about any variation from single phase, low current applications to three phase, and high current applications.
As a general rule: fuses are more simplistic and reliable. They cost less initially and are better suited for individual circuit protection. However, they can create more cost over time with each use and may create hazards due to the exposed connection points. Whereas circuit breakers offer better branch circuit protection and do not need to be replaced after each use. They are more expensive initially and, because of their complexity, are more prone to failure over time.