Bussmann Stud-Mounted Fuses Data Sheet

12-17-98
SB98107

Rev. A

Time-Current Characteristics–Total Clear

Stud-Mounted Fuses ACK

Form No. ACK

Page 1 of 1

BIF Doc #1040

Bussmann

®

Catalog Symbol: ACK
Ampere Rating: 10 to 400 Amperes
Voltage Rating: 130 Volts DC or less

(10-100): 130 Vdc, (120-200): 72 Vdc,
(225-300): 48 Vdc

Agency Approvals:

U.L. Recognized (15-300A), Guide JFHR2, File E56412

Catalog

Dimensions in Inches and (mm)

Symbol A B C D E F G

ACK 10–30

2.5∑ .375∑ .500∑ .250∑ .557∑ .588∑ .031∑
(63.5) (9.53) (12.70) (6.35) 14.15) (14.94) (0.79)

ACK 35–60

3.0∑ .470∑ .685∑ .344∑ .812∑ .860∑ .051∑
(76.20) (11.94) (17.40) (8.74) (20.63) (21.84) (1.30)

ACK 70–100

3.5∑ .547∑ .750∑ .312∑ 1.062∑ 1.125∑ .050∑
(88.90) (13.89) (19.05) (7.92) (26.98) (28.58) (1.27)

ACK 120–200

3.750∑ .750∑ .750∑ .375∑ 1.062∑ 1.15∑ .050∑
(95.25) (19.05) (19.05) (9.52) (26.98) (29.21) (1.27)

ACK 225–400

3.750∑ .610∑ .750∑ .312∑ 1.062∑ 1.125∑ .050∑
(95.25) (15.49) (19.05) (7.92) (1.062) (28.58) (1.27)

Note: 10-60 amp fuses use brass terminals and ferrules.

70-400 amp fuses use copper terminals and ferrules.

Fuseblocks

Catalog Block Catalog Block
Number Number Number Number

ACK 10-30 4228 ACK 120-200 3569
ACK 35-60 3411 ACK 225-400 3578
ACK 70-100 2322

Electrical Ratings (Catalog Symbol, Amperes and Voltage)

ACK-10 130V ACK-40 130V ACK-100 130V ACK-200 72V
ACK-15 130V ACK-50 130V ACK-120 72V ACK-225 80V
ACK-20 130V ACK-60 130V ACK-140 72V ACK-250 80V
ACK-25 130V ACK-70 130V ACK-150 72V ACK-300 80V
ACK-30 130V ACK-75 130V ACK-160 72V ACK-400 80V
ACK-35 130V ACK-80 130V ACK-175 72V — —

General Information:

• These fuses avoid needless openings from starting currents or
surges.

• A fuse link which operates only on very high overloads or
short-circuits.

• Thermal cutout functions on low overloads – the thermal
cutout cannot operate quickly at any load, hence long time­lag is obtained on high overloads of short duration.

• This long time-lag also makes it unnecessary to use extra
large size or over-size fuses.

Test Specifications

Fuse Load Opening Time

200% 100 Seconds*

ACK 300% 35 Seconds*

500% 13 Seconds*

*Approximately.

Dimensional Data All other tolerances (± 0.005) mm

(± 0.13) inches

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 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 selected, it should be
tested by the user in all possible applications.

CE logo denotes compliance with European Union Low Voltage Directive
(50-1000 Vac, 75-1500 Vdc). Refer to BIF document #8002 or contact
Bussmann Application Engineering at 314-527-1270 for more information.

A

(± 0.031")

(± 0.79mm)

10152030355070

B

E

G

AMPERE

150

200

250

RATING

300

100

F

D

C

100

10

1

TIME IN SECONDS

.1

.01

4

10

100

CURRENT IN AMPERES

1,000

2,000