®
Bu s s m a n n
Ra d ia l Le a d Mic ro Fu s e
Qu ic k -Ac t in g (F)
2 5 0 m A t o 5 A, 2 5 0 Vo lt s AC
EFF
V
R
D E
S
Dimensional Data
A
A
V
D
E
S
T500MA 250V
B
E
LEAD
C
CATALOG SYMBOL: EFF
RADIAL LEAD MICRO FUSE
250mA TO 5A
D
F
250 VOLTS AC
Short Lead
QUICK-ACTING (F)
DESCRIPTION:
PACKAGING:
WEIGHT:
Fuses are quick-acting, radial leaded
micro fuses in accordance with the specif-
cations of IEC127-3, standard sheet 3
(Type F).
Long Lead
Dimensions
mm (inches)
Fuses can be provided:
Short Lead
8.35 (.3285)
7.7 (.303)
4.3 (.1695)
—
Long Lead
1. in Bulk (short lead only) or
2. on tape in standard ammo-pack boxes,
to IEC 286-2.
A
B
C
D
E
F
8.35 (.3285)
7.7 (.303)
—
573 grams per 1000.
18.8 (.74)
0.5 (.197)
5.0 (.0235)
0.6
0.5 (.0195)
5.0 (.0235)
0.6
Typical mV Drop
Measured at 75%
Normal Ambient
Melting
I2t
A Sec.
Catalog
Number*
2
Rating
250mA
315mA
400mA
500mA
630mA
800mA
1A
EFF250
EFF315
EFF400
EFF500
EFF630
EFF800
EFF1
260
250
240
230
110
100
90
0.05
0.08
0.14
0.22
0.17
0.25
0.04
0.66
1
150%
210%
Max.
275%
Min. Max.
400%
Max.
3 ms. 300 ms.
1000%
Max.
Rated Current
Min.
Min.
250mA to 5A
1 hr.
30 min. 10 ms. 3 sec.
20 ms.
All are 250V AC
EFF1.25
EFF1.6
EFF2
1.25A
1.6A
87
85
2A
84
2
EFF2.5
EFF3.15
EFF4
2.5A
82
3
3.15A
4A
81
5
80
9
EFF5
5A
78
15
* Please add the following prefix to the catalog number to denote packaging required:
AP - Ammo-pack taped 1000 per box or,
BK - In bulk 100 per bag (short lead only).
For example: AP/EFF800 for Ammo-pack and BK/EFF800 for Bulk Pack.
Form No. EFF
Page 1 of 2
BIF Doc #4201
Bussmann
rev. 10/14/96
COOPER [ COOPER BUSSMANN, INC. ]
