What does HRC fuse mean?
What does HRC fuse mean?
HRC fuse or high rupturing capacity fuse– In that type of fuse, the fuse wire or element can carry short circuit heavy current for a known time period. During this time if the fault gets removed, then it does not blow off. Otherwise, it blows off or melts.
What is a Class Q1 fuse?
There are two types: Class Q1—fusing factor between 1.25 and 1.5. Class Q2—fusing factor between 1.5 and 1.75. These fuses have a fusing factor between 1.75 and 2.5 and will. Class R fuses.
What is the difference between RK1 and RK5 fuses?
What is the difference between UL Class RK1 and RK5 fuses? Class RK1 and RK5 fuses are the same physical size but Class RK1 fuses are more current-limiting than Class RK5 fuses. RK1 fuses can provide better protection because they allow less damaging energy to pass through them while opening (blowing).
What are the classes of fuses?
UL Fuse Classification Chart
| UL CLASS | FUSE OVERLOAD CHARACTERISTICS | INTERRUPTING RATING, AMPERES |
|---|---|---|
| CD | TIME-DELAY | 200,000 |
| G | TIME-DELAY | 100,000 |
| K5 | FAST-ACTING | 50,000 |
| H | RENEWABLE FUSES FAST-ACTING | 10,000 |
What does the R mean on a fuse?
MVR fuses are current and energy limiting fuses intended for the backup protection of medium voltage motor control. They are non- venting.
What is the difference between a HRC and HRC fuse?
HRC fuses are available in ratings up to 600 V and 6000 A. The main differences among the various types are their dimensions and their short circuit performance (Ip and I2t) characteristics. One type of HRC fuse found in Canada, but not in the United States, is the HRCII-C or Class C fuse.
What is a high rupturing capacity fuse?
HRC Fuse (High Rupturing Capacity Fuse) and its Types This type of fuse contains a fuse wire in it, which carries the short circuit current safely for a given time period. During this period, if fault is removed, then it does not blow off otherwise it will melt and remove the circuit from electrical supply hence, the circuit remains safe.
What is an interrupting rating for a fuse?
HRC or current-limiting fuses have an interrupting rating of 200 kA and are recognized by a letter designation system common to North American fuses. In the United States they are known as Class J, Class L, Class R, etc., and in Canada they are known as HRCI-J, HRC-L, HRCI-R, and so forth. HRC fuses are available in ratings up to 600 V and 6000 A.
What does HRC stand for?
Fuse, High Rupturing Capacity (HRC), British BS 88, LET Series, 50 A, Bolted Tag, 240 VDC, 240 VAC You previously purchased this product. View in Order History This item has been restricted for purchase by your company’s administrator. You previously purchased this product. View in Order History
