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參數(shù)資料
| 型號： | 50K07C |
| 廠商： | COOPER INDUSTRIES |
| 元件分類： | 保險絲 |
| 英文描述： | FAST BLOW ELECTRIC FUSE, 50A, 600VAC, 250VDC, 200000A (IR), INLINE/HOLDER |
| 文件頁數(shù)： | 1/3頁 |
| 文件大小： | 92K |
| 代理商： | 50K07C |
102
HRCII CURRENT LIMITING FUSES
Edison HRCII Fuses
- Engineered for long life reliable protection.
- Non deteriorating silver plated links.
- High grade ceramic bodies.
- Plated external metalwork.
- Interrupting rating certified to 200,000 Amps RMS sym-
metrical, to CSA C22.2 No. 106M1992.
- HRCII fuse manufacturing is certified to ISO 9002 (1987)
standard.
Applications
HRCII fuses are often used to protect motor control circuits,
together with contactors and overload protection relays.
In this application overload protection of the installation is
provided by the thermal overload relay, and the fuses are
usually rated higher than the motor full load current to avoid
nuisance blowing under starting inrush currents.
This arrangement allows the use of a fast-acting *fuse char-
acteristic which ensures excellent short-circuit current and
energy limiting for optimum protection.
*CSA defined HRCII characteristics inherently give more time delay than
HRCI fast acting fuses.
Cross Reference
AMPERE
RATING
EDISON
DORMAN*
GEC/ENGLISH
FUSETEK
GOULD
BUSSMANN
SIEMENS
2-30
H07C
AAO
CIA
2CO
FES, GIA
CGL
3NW211
40-60
K07C
BAO
CIS
2CO
FES, GIS
CGL
2NW212
80-100
L14C
CEO
CCP
2CO
FES, GCP
CGL
3NW213
80-100+
L09C
CD
CC
2CM
FESC, GC
–
2NW222
125-200
M09C
DD
CF
2CC
FESC, GF
CGL
3NW223
125-200+
M14C
DEO
CFP
2CM
FES, GFP
–
3NW214
250-400
P11C
EF
CM
2CC
FESC, GM
CGL
3NW231
250-400+
P09C
ED
CMF
2CM
FESF, GMF
–
3NW224
450-600
R11C
FF
CLM
2CC
FESC, GLM
CGL
3NW233
*HRCII fuses manufactured by Dorman Smith now available as Edison.
+
HRCII-MISC.
600V a.c. or less, 250V d.c. 200,000 A.I.R. to CSA C22.2 No. 106 M92
For full “no damage” protection under all fault conditions
(Type 2 Coordination - per IEC 947-4), and to avoid nui-
sance fuse operation, the fuse, relay and contactor charac-
teristics must be considered together to ensure that:
- the contactor is protected at all times
- the overload relay operates before the fuse (up to the
relay’s safe interrupting limit), or
- the fuse safely clears the circuit and limits high level
fault currents to prevent damage to the relay or to the
contactor.
This is particularly necessary in the case of IEC style con-
tactors, which require more accurate coordination to ensure
optimum system reliability.
In addition CSA certified, Edison HRCII fuses are also test-
ed and certified to IEC and British standards. IEC269:2 and
BS88:2 include tightly specified characteristics to ensure full
interchangeability with other manufacturers HRCII fuses
certified to these standards.
For further information on fuse selection and coordination
contact your local Edison Fusegear representative.
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