What does ATQR fuse mean?
What does ATQR fuse mean?
ATQR small-dimension fuses feature time-delay characteristics ideally suited for the high inrush currents of control transformers, solenoids, and similar inductive loads. Mersen’s ATQR fuses provide superior protection for the branch circuits of electrical distribution systems.
What is a AJT fuse?
AJT (70-600) EI: With advanced material technology the AJT fuse provides IEC Type 2 No Damage protection to main, feeder, and branch circuits, for all types of loads — yet, they require only half the mounting space needed for 600VAC Class RK fuses.
What is A Class L fuse?
A Class L fuse is 600 volt AC current limiting, fuse that is rated to interrupt a minimum of 200,000 amps. The Type L Fuse is UL Listed, under UL 248-10, Class L, (601-6,000 amps) and CSA Certified,. The Type L fuse is UL Recognized, for ampere ratings of 100 to 600 amps.
Are Class J fuses time delay?
Class J Fuse Safety Specifications at 600Vac with the exception of the Bussmann LPJ series, which is certified with a 300,000A interrupting rating. Class J fuses are available in time delay, fast acting or high speed types, and they are non-renewable.
What are the different classes of fuses?
Fuse Classes. How to Choose Correctly?
| Fuse Type | Max. Current Rating | Classification |
|---|---|---|
| Class RK5 | 600A | -Non-renewable -Current limiting -Time-delay |
| Class C | 1200A | -Non-renewable -Time-delay |
| Class CC (Midget) | 30A | -Non-renewable -Current limiting -Fast-acting |
| Class T | 1200A | -Non-renewable -Current limiting -Fast-acting |
What is a Class G fuse?
What is a Class G, Fuse? A UL Class G fuse is a 600/480 volts AC current limiting, fuse that is rated to interrupt a minimum of 100,000 amps. Ampere ratings range from ½ amp to 60 amps. The type G fuse meets the NEC, requirements for branch circuit, protection.
What are Class P fuses?
Classification of LV fuses These having a fusing factor of 1.25 or less and provide protection Class P fuses for circuits that cannot withstand even small sustained overloads. .
What are Class J fuses for?
Class J fuses are commonly used in branch circuits, motor circuits, mains, feeders, control panels, electronic motor controllers, drives, soft-starters, circuit breaker back-up, transformers, load centers, lighting, heating and general loads to name a few.