Technical Data 10414 Effective October 2015
BUSSMANN
SERIES
Compact high speed fuses — 500Vac/dc, 50-400A
Catalog symbol:
• CHSF-(amp)
Description:
Eaton’s Bussmann® series compact high speed
fuses feature space-saving case sizes for
protecting semiconductor devices up to 500Vac/dc
in ratings from 50 to 400 amps.
Specifications:
Ratings
• Volts - 500Vac/dc
• Amps – 50-400A
• Interrupting rating
• Max AC – 200kA
• Min AC 400%
• Max DC – 50kA
• Min DC 800%
• Conforms to IEC® aR specifications for short-
circuit protection
Agency information
• UL® Recognized, File E56412, Guide JFHR2
• CSA® Component Acceptance, Class 1422-30,
File 53787
• IEC aR (self certified)
• CE
• RoHS compliant
• REACH declaration available upon request
Features:
• Use up to 48% less enclosure space to help
reduce the overall assembly size
• Innovative design allows for a significantly
smaller package without compromising
heat rise performance, preventing extensive
equipment redesign
• Global acceptance with UL, CSA, IEC and RoHS
for products sold worldwide
• Bolt-on design provides design flexibility for
installation in fuse blocks or direct mounting on
busbars
• Meets JASO D622 spec for thermal shock,
humidity, and vibration
• Superior current cycling performance helps
withstand demanding applications
Recommended fuse blocks
Up to 100 amps
Catalog numbers Wire size Stud size
BH-0111 #14-2/0 Cu 1/4-20
BH-0112 #14-2/0 Cu 5/16-18
BH-0121 (2) #14-1/0 Cu 1/4-20
BH-0122 (2) #14-1/0 Cu 5/16-18
1BS101 #14-2/0 Cu 1/4-20 x 1/2
See data sheet No. 1200 (BH-01_) and No. 1206
(1BS101) for details.
Up to 400 amps
Catalog numbers Wire size Stud size
BH-1131 #6-250kcmil Cu 1/4-20
BH-1132 #6-250kcmil Cu 5/16-18
1BS102 #6-250kcmil Cu 1/4-20 x 1/2
See data sheet No. 1201 (BH-11_) and No. 1207
(1BS102) for details.
2
Technical Data 10414
Effective October 2015
Compact high speed fuses
Eaton.com/bussmannseries
Catalog numbers:
Catalog number Amps
AC/DC I2t (A2s)
pre-arcing
AC* I2t (A2s)
total clear
DC** I2t (A2s)
total clear
Watts loss / percent of rated current
@ 80% @ 50%
CHSF-50 50 304 1875 935 3.8 1.3
CHSF-60 60 438 2700 1346 4.5 1.5
CHSF-70 70 596 3675 1833 5.3 1.8
CHSF-80 80 778 4800 2394 6.1 2.0
CHSF-100 100 1216 7500 3740 7.6 2.5
CHSF-125 125 2042 12,721 6465 12.0 3.6
CHSF-150 150 2941 18,318 9309 14.3 4.3
CHSF-175 175 4003 24,933 12,671 16.7 5.1
CHSF-200 200 5228 32,566 16,550 19.1 5.8
CHSF-225 225 6835 48,028 21,278 26.1 7.0
CHSF-250 250 8438 59,293 26,270 29.0 7.8
CHSF-300 300 12,151 85, 382 37,828 34.8 9.4
CHSF-350 350 16,539 116,215 51,488 40.6 10.9
CHSF-400 400 21,603 151,791 67,250 46.4 12.5
* @ 200kA/500Vac.
** @ 50kA/500Vdc.
Dimensions — mm:
Case size amp range A B C D1 D2 E F G H
50-100 81 20 40 61 57 8.7 16 7.7 3.2
125-200 92 25 53 77 68 8.7 19 7.8 3.2
225-400 92 30 53 74 68 8.7 25 9.0 4.8
A
C
E
F
G
D1
D2
B
H
3
Technical Data 10414
Effective October 2015
Compact high speed fuses
Eaton.com/bussmannseries
AC minimum melt
0.001
0.01
0.1
1
10
100 1000 10,000
Virtual pre-arcing time (s)
Prospective current (ARMS)
A A
CHSF-225
CHSF-250
CHSF-300
CHSF-350
CHSF-400
CHSF-125
CHSF-150
CHSF-175
CHSF-200
CHSF-50
CHSF-60
CHSF-70
CHSF-80
CHSF-100
4
Technical Data 10414
Effective October 2015
Compact high speed fuses
Eaton.com/bussmannseries
AC total clearing
0.001
0.01
0.1
1
10
100 1000 10,000
A A
CHSF-225
CHSF-250
CHSF-300
CHSF-350
CHSF-400
CHSF-125
CHSF-150
CHSF-175
CHSF-200
CHSF-50
CHSF-60
CHSF-70
CHSF-80
CHSF-100
Virtual clearing time (s)
Prospective current (ARMS)
5
Technical Data 10414
Effective October 2015
Compact high speed fuses
Eaton.com/bussmannseries
AC peak let-through
100
1000
10,000
100,000
100100010,000100,000
Peak let-through current
Prospective short-circuit current RMS Sym.
CHSF-400
CHSF-300
CHSF-200
CHSF-100
CHSF-50
A
B
6
Technical Data 10414
Effective October 2015
Compact high speed fuses
Eaton.com/bussmannseries
AC arc voltage AC clearing I2t voltage correction factor
500
550
600
650
700
750
800
850
900
950
1,000
100150 200250 300350 400450 500
Peak arc voltage
System voltage (ACRMS)
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
200 250 300 350 400 450 500
I2t correction factor
System voltage (ACRMS)
DC arc voltage
500
550
600
650
700
750
800
850
900
950
1000
100 150 200 250 300 350 400 450 500
Peak arc voltage
System voltage (DC)
DC clearing I2t voltage correction factor
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
100 150 200 250 300 350 400 450 500
I2t correction factor
System voltage (DC)
7
Technical Data 10414
Effective October 2015
Compact high speed fuses
Eaton.com/bussmannseries
Temperature derating
0.7
0.8
0.9
1
1.1
1.2
1.3
1.4
-40-30 -20-10 0102030405060708090100
Melting time correction factor
Ambient temperature (°C)
Compact high speed fuses
Technical Data 10414
Effective October 2015
Eaton and Bussmann are valuable trademarks
of Eaton in the US and other countries. You
are not permitted to use the Eaton trademarks
without prior written consent of Eaton.
CSA is a registered trademark of the Canadian
Standards Group.
IEC is a registered trademark of the
International Electrotechnical Commission.
UL is a registered trademark of the
Underwriters Laboratories, Inc.
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
Eaton.com
Bussmann Division
114 Old State Road
Ellisville, MO 63021
United States
Eaton.com/bussmannseries
© 2015 Eaton
All Rights Reserved
Printed in USA
Publication No. 10414 — BU-MC15041
October 2015
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are by definition uncontrolled. This bulletin is intended to clearly present comprehensive product data and provide technical information that will help
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