12-21-98
SB98107 Rev. A
HRC FORM II Current Limiting Fuses HRC FORM II
Ceramic Body
Form No. HCR FORM II
Page 1 of 3
BIF Doc #4131
Bussmann®
Dimensional Data
CATALOG SYMBOL: H07CB, K07CB, KO7CRB, L14CB,
M14CB, L09CB, M09CB, P09CB, P11CB AND R11CB
CERAMIC BODY FUSE
600 VOLTS A.C. OR LESS
250 VOLTS D.C.
CURRENT LIMITING
200,000 AMPS RMS SYMMETRICAL
CSA C22.2 NO. 106M1992
BS88:2, IEC269:2
Applications
• 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.
E
D
G
F
A
HC
J
B
H07CB (Offset Blades)
E
D
G
F
A
H
C
J
B
K07CB/K07CRB/L14CB/M14CB (Offset Blades)
D
G
C
A
F
B
E
H
L09CB/M09CB/P09CB (Center Blades)
FB
E
G
C
A
K
D
K
H
P11CB/R11CB (Center Blades)
12-21-98
SB98107 Rev. A
HRC FORM II Current Limiting Fuses HRC FORM II
Ceramic Body
Bussmann®
Form No. HCR FORM II
Page 2 of 3
BIF Doc #4131
Ratings, Categories and Dimensions
Current Dimensions in Inches and (mm)
Ratings Catalog CSA
(Amps) Number ABCDEF GHJKCategory
2 2H07CB
4 4H07CB
6 6H07CB
10 10H07CB 1.38 .56 3.38 .38 .06 2.88 .22 .31 .56 – HRCII-C
15 15H07CB (35) (14) (85) (9) (1.2) (73) (5.6) (8) (14) –
20 20H07CB
25 25H07CB
30 30H07CB
40 40K07CB 2.19 .88 3.44 .5 .06 2.88 .22 .31 .88 –
50 50K07CB HRCII-C
60 60K07CB (56) (22) (87) (13) (1.2) (73) (5.6) (8) (22) –
80 80K07CRB 2.19 .88 3.75 .5 .06 2.88 .22 .31 .88 – HRCII-MISC
100 100K07CRB (56) (22) (95) (13) (1.2) (73) (5.6) (8) (22) –
80 80L14CB 2.38 .88 4.38 .56 .13 3.69 .34 .44 1 – HRCII-C
100 100L14CB (60) (21.4) (111) (14.3) (3.2) (94) (8.7) (11) (25.4) –
125 125M14CB 2.56 1.5 4.38 .75 .09 3.69 .34 .44 – –
150 150M14CB HRCII-MISC
200 200M14CB (65) (38) (111) (19) (2.4) (94) (8.7) (11) – –
80 80L09CB 2.38 .88 5 .56 .13 4.38 .34 .44 – – HRCII-MISC
100 100L09CB (60) (21.4) (127) (14) (3.2) (111) (8.7) (11) – –
125 125M09CB 2.56 1.5 5.38 .75 .13 4.38 .34 .56 – –
150 150M09CB HRCII-C
200 200M09CB (65) (38) (136) (19) (3.2) (111) (8.7) (14) – –
250 250P09CB
300 300P09CB 3.06 2.31 5.38 1 .19 4.38 .34 .5 – –
350 350P09CB (178) (59) (1136) (25.4) (4.8) (111) (8.7) (13) – – HRCII-MISC
400 400P09CB
250 250P11CB
300 300P11CB 3.06 2.31 8.25 1 .19 5.25 .41 .63 – 1 HRCII-C
350 350P11CB (178) (59) (210) (25.4) (5) (133) (10) (16) – 25
400 400P11CB
450 450R11CB 3.19 2.88 8.25 1 .25 5.25 .41 .63 – 1
500 500R11CB HRCII-C
600 600R11CB (81) (73) (210) (25.4) (6.3) (133) (10) (16) – 25
12-21-98
SB98107 Rev. A
HRC FORM II Current Limiting Fuses HRC FORM II
Ceramic Body
Bussmann®
Form No. HCR FORM II
Page 3 of 3
BIF Doc #4131
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.
Peak Let-Through Curves
Time/Current-Curves
100
1,000
10,000
100,000
1,000,000
30
60
100
200
400
600
FUSE RATING (AMPERES)
AMPERE2 SECONDS (I2t)
Total I2t at 600V
Total I2t at 460V
Pre-Arcing I2t
100,000
10,000
1,000
100
10
1,000
100
10
1
.1
CURRENT IN AMPERES
TIME IN SECONDS
.01
30
60
100
200
400
600
AMPERE
RATING
Energy Let-Through Curves
100
10
1
.1
100
10
1
.1
PROSPECTIVE CURRENT (SYM. RMS KA)
PEAK CURRENT (KA)
.01
30
60
100
200
400
600
AMPERE
RATING
