• HRC FORM II fuses are often used to protect motor control
circuits, together with contactors and overload protection
relays.
• Type 2 coordination - per IEC 947-4.
G
D
H
C
E
P11CB/R11CB (Center Blades)
12-21-98
SB98107
Rev. A
Form No. HCR FORM II
Page 1 of 3
BIF Doc #4131
Bussmann
®
HRC FORM II Current Limiting Fuses
Ceramic Body
Ratings, Categories and Dimensions
Current
Ratings
(Amps)
2
4
6
10
15
20
25
30
40
50
60
80
100
80
100
125
150
200
80
100
125
150
200
250
300
350
400
250
300
350
400
450
500
600
Dimensions in Inches and (mm)
Catalog
Number
2H07CB
4H07CB
6H07CB
10H07CB
15H07CB
20H07CB
25H07CB
30H07CB
40K07CB
50K07CB
60K07CB
80K07CRB
100K07CRB
80L14CB
100L14CB
125M14CB
150M14CB
200M14CB
80L09CB
100L09CB
125M09CB
150M09CB
200M09CB
250P09CB
300P09CB
350P09CB
400P09CB
250P11CB
300P11CB
350P11CB
400P11CB
450R11CB
500R11CB
600R11CB
A
B
C
D
E
F
G
H
HRC FORM II
J
K
CSA
Category
1.38
(35)
.56
(14)
3.38
(85)
.38
(9)
.06
(1.2)
2.88
(73)
.22
(5.6)
.31
(8)
.56
(14)
–
–
HRCII-C
2.19
(56)
2.19
(56)
2.38
(60)
2.56
(65)
2.38
(60)
2.56
(65)
.88
(22)
.88
(22)
.88
(21.4)
1.5
(38)
.88
(21.4)
1.5
(38)
3.44
(87)
3.75
(95)
4.38
(111)
4.38
(111)
5
(127)
5.38
(136)
.5
(13)
.5
(13)
.56
(14.3)
.75
(19)
.56
(14)
.75
(19)
.06
(1.2)
.06
(1.2)
.13
(3.2)
.09
(2.4)
.13
(3.2)
.13
(3.2)
2.88
(73)
2.88
(73)
3.69
(94)
3.69
(94)
4.38
(111)
4.38
(111)
.22
(5.6)
.22
(5.6)
.34
(8.7)
.34
(8.7)
.34
(8.7)
.34
(8.7)
.31
(8)
.31
(8)
.44
(11)
.44
(11)
.44
(11)
.56
(14)
.88
(22)
.88
(22)
1
(25.4)
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
HRCII-C
HRCII-MISC
HRCII-C
HRCII-MISC
HRCII-MISC
HRCII-C
3.06
(178)
2.31
(59)
5.38
(1136)
1
(25.4)
.19
(4.8)
4.38
(111)
.34
(8.7)
.5
(13)
–
–
–
–
HRCII-MISC
3.06
(178)
2.31
(59)
8.25
(210)
1
(25.4)
.19
(5)
5.25
(133)
.41
(10)
.63
(16)
–
–
1
25
HRCII-C
3.19
(81)
2.88
(73)
8.25
(210)
1
(25.4)
.25
(6.3)
5.25
(133)
.41
(10)
.63
(16)
–
–
1
25
HRCII-C
12-21-98
SB98107
Rev. A
Form No. HCR FORM II
Page 2 of 3
BIF Doc #4131
Bussmann
®
HRC FORM II Current Limiting Fuses
Ceramic Body
Energy Let-Through Curves
Time/Current-Curves
1,000
Total I
2
t at 600V
Total I
2
t at 460V
1,000,000
Pre-Arcing I
2
t
100
AMPERE
2
SECONDS (I
2
t)
HRC FORM II
AMPERE
RATING
60
100
200
400
100,000
TIME IN SECONDS
10
10,000
1
1,000
.1
100
100
200
400
FUSE RATING (AMPERES)
600
30
60
.01
100,000
10,000
1,000
CURRENT IN AMPERES
600
400
200
100
60
30
AMPERE
RATING
100
10
Peak Let-Through Curves
100
10
PEAK CURRENT (KA)
1
.1
.01
PROSPECTIVE CURRENT (SYM. RMS KA)
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies of this BIF document are by definition uncontrolled. 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 select-
ed, it should be tested by the user in all possible applications.
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