Fusetron®
Dual-Element
Time-Delay Fuses |
 |
| Class RK5 - 600 Volt 65-600 Amps |
FRS-R |
- Provides motor overload, ground fault and short-circuit protection.
When used in circuits subject to surge currents such as those caused by motors,
transformers and other inductive components, these fuses can be sized close to full-load
amperes to give maximum overcurrent protection.
- Permits the use of smaller and less costly switches. The time-delay
feature makes it possible to use fuse ampere ratings which are much smaller than those of
non-time-delay fuses. Considerable cost saving occurs by permitting the use of smaller
size switches, panels and fuses themselves.
- Provides a higher degree of short-circuit protection (greater
current-limitation) in circuits in which surge currents or temporary overloads occur
- Helps protect motors against burnout from overloads
- Gives motor running back-up protection to motors without extra costs
- Helps protect motors against burnout from single phasing on three
phase systems
- Simplifies and improves blackout prevention (selective coordination)
- Dual element fuses can be applied in circuits subject to temporary
motor overloads and surge currents to provide both high performance short-circuit and
overload protection
 |
 |
| Dimensions (in.) |
A |
B |
| Ampere Ratings |
| 65-100 |
7.88(±0.062) |
1.16(±0.008) |
| 110-200 |
9.63(±0.062) |
1.66(±0.008) |
| 225-400 |
11.63(±0.094) |
2.38(±0.008) |
| 450-600 |
13.38(± 0.094) |
2.88(±0.008) |
Catalog Symbol: FRS-R
Dual-Element, Time-Delay (10 seconds minimum at 500% rated current)
Current-Limiting
Ampere Rating: 65 to 600 Amperes
Voltage Rating: 600 Volts AC (or less)
Interrupting Rating: 200,000A RMS Sym.
DC Ratings: 20,000 AIC @ 250V DC
Agency Approvals: U.L. listed, Std. 248-12, Class RK-5, (Guide JDDZ, File E4273),
CSA Certified, C22.2 No. 248.12, (Class 1422-01; File 53787)
Catalog Numbers
| FRS-R-65 |
FRS-R-125 |
FRS-R-300 |
| FRS-R-70 |
FRS-R-135 |
FRS-R-325 |
| FRS-R-75 |
FRS-R-150 |
FRS-R-350 |
| FRS-R-80 |
FRS-R-175 |
FRS-R-400 |
| FRS-R-85 |
FRS-R-200 |
FRS-R-450 |
| FRS-R-90 |
FRS-R-225 |
FRS-R-500 |
| FRS-R-100 |
FRS-R-250 |
FRS-R-600 |
| FRS-R-110 |
FRS-R-275 |
- |
Carton Quantity and Weight
Ampere
Ratings |
Carton
Qty. |
Weight*
Lbs. |
Weight*
Kg. |
| 65-100 |
1 |
0.54 |
0.245 |
| 101-200 |
1 |
1.22 |
0.544 |
| 201-400 |
1 |
3.00 |
1.359 |
| 401-600 |
1 |
5.00 |
2.268 |
*Weight per carton
Fuse Reducers for Class R Fuses
Equipment
Fuse Clips |
Desired Fuse
(Case) Size |
Catalog Number
(Pairs) 600V |
| 200A |
100A |
No. 2621-R |
| 400A |
100A |
No. 2641-R |
| 400A |
200A |
No. 642-R |
| 600A |
100A |
No. 2661-R |
| 600A |
200A |
No. 2662-R |
| 600A |
400A |
No. 2664-R** |
** Single reducer only (pair not required) For additional
information, see BIF Document 1118
Fuseblocks for Class R Fuses
(Clip Retaining Spring Standard, Suffix "R")
| Amps |
Poles |
Basic Catalog # |
Box Lug*** |
Box Lug***
w/Clip CU only |
| 65-100 |
1 |
R60100-1 |
CR |
COR |
| 65-100 |
2 |
R60100-2 |
CR |
COR |
| 65-100 |
3 |
R60100-3 |
CR |
COR |
| to 200 |
1 |
R60200-1 |
CR |
- |
| to 400 |
1 |
R60400-2 |
CR |
- |
| to 600 |
1 |
R60600-3 |
CR |
- |
***Terminal type (suffix number) For additional
information on the R600 Series fuseblocks, refer to BIF Document 1111
CE logo denotes compliance with European Union Low
Voltage Directive (50-1000 VAC, 75-1500 VDC). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 314-527-1270 for more information.
This bulletin is intended to clearly present
comprehensive product data and provide technical information that will help the end user
with design applications. Bussmann reserves the right, without notice, to change design or
construction of any products and to discontinue or limit distribution of any products.
Bussmann also reserves the right to change or update, without notice, any technical
information contained in this bulletin. Once a product has been selected, it should be
tested by the user in all possible applications.
FRS_R65+ (orig.-8/1/02)
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