Description
• Very fast-acting
• Optional axial leads available
• 1⁄4" x 1 1⁄4" (6.3 x 32mm) physical size
• Ceramic tube, nickel-plated brass endcap construction
• 100pc-carton quantity weighs 1.0 lb (0.45 kg)
• UL Recognized product meets standard 248-14
Agency Information
• UL Recognized Card: GBB 1-30A (JFHR2, E56412)
• CSA Component Certified Card
(Class 1422-01 File 53787)
Ordering
• Specify packaging, product, and option code
Dimensions - mm/in
Electrical Characteristics
Rated Current % of Amp Rating Opening Time
100% None
1 - 20A 150% 2 minutes maximum
250% 1 seconds maximum
400% -
100% None
25, 30A 150% 2 minutes maximum
250% 6 seconds maximum
400% -
* Interrupting ratings: Interrupting ratings for 1-15A at 125Vdc was measured at 10,000A, 3.5 ms maximum, with time constant. Ratings 20-30A at 125Vdc were measured at 200A, 0.5
ms maximum, with time constant. Ratings 1-15A at 125Vac were measured at 10,000A, and 70% - 80% power factor. The interrupting ratings for 1-30A at 250Vac were measured at
90% - 100% power factor.
** DC Cold Resistance (Measured at <10% of rated current)
† Typical Melting I2t (I2t was measured at listed interrupting rating and rated voltage) Interrupting ratings were measured at 70% to 80% power factor on AC.
‡ Typical Voltage drop (Voltage drop was measured at 25°C±3°C ambient temperature at rated current)
Specifications
Voltage AC Interrupting DC Interrupting Typical DC Cold Typical
Product Code Rating Rating (amps)* Rating (amps)* Resistance Voltage
Vac Vdc 250Vac 125Vac 125Vdc (ΩΩ)** Drop (V)‡
GBB-1-R 250 125 200 10,000 10,000 0.17750 0.2096
GBB-1-1/4-R 250 125 200 10,000 10,000 0.17900 0.2497
GBB-2-R 250 125 200 10,000 10,000 0.06620 0.1687
GBB-3-R 250 125 200 10,000 10,000 0.04475 0.1816
GBB-4-R 250 125 200 10,000 10,000 0.03175 0.1778
GBB-5-R 250 125 200 10,000 10,000 0.02125 0.1217
GBB-6-R 250 125 200 10,000 10,000 0.01800 0.1324
GBB-7-R 250 125 200 10,000 10,000 0.01550 0.1355
GBB-8-R 250 125 200 10,000 10,000 0.01360 0.1144
GBB-9-R 250 125 200 10,000 10,000 0.01070 0.1218
GBB-10-R 250 125 200 10,000 10,000 0.00934 0.0877
GBB-12-R 250 125 200 10,000 10,000 0.00620 0.0806
GBB-15-R 250 125 200 10,000 10,000 0.00472 0.0735
GBB-20-R 250 125 200 200 200 0.00330 0.0728
GBB-25-R 250 125 200 200 200 0.00252 0.0610
GBB-30-R 250 125 200 200 200 0.00206 0.0657
1⁄4" x 1 1⁄4" Fuses
GBB Series, Very Fast-Acting, Ceramic Tube
0508 BU-SB08022 Page 1 of 2 Data Sheet 2013
TIME IN SECONDS
TIME IN SECONDS
CURRENT IN AMPERES
CURRENT IN AMPERES
1-1/4
1
2
25
9
6
3
5
7
8
15
10
12
20
30
Time-Current Curve
Packaging
Packaging Code Description
BK 100 fuses packed into a cardboard carton
BK1 1,000 fuses packed into a cardboard carton
Option Code
Option Code Description
BBoard Washable - Hermetically sealed to withstand aqueous cleaning
VAxial leads - copper tinned wire with nickel plated brass overcaps
©2008 Cooper Bussmann
St. Louis, MO 63178
www.cooperbussmann.com
0508 BU-SB08022 Page 2 of 2 Data Sheet 2013
The only controlled copy of this Data Sheet is the electronic read-only version located on the Cooper 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. Cooper Bussmann reserves the right, without notice, to change
design or construction of any products and to discontinue or limit distribution of any products.Cooper 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.
Life Support Policy:Cooper Bussmann does not authorize the use of any of its products for use in life support devices or systems without the express written approval of an officer of the Company.Life support
systems are devices which support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in
significant injury to the user.
