Description
• V ery fast-acting
• 1/4" x 1-1/4" (6.3mm 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 product code, option code and packaging code
Dimensions mm⁄(inches)
1/4" x 1-1/4" Fuses
GBB Series Very Fast Acting, Ceramic Tube
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 Typical
Product Code Rating Rating* Rating* Resistance Melt I2t † Voltage
AC DC 250V 125V 125V (ohms)** AC DC Drop (V)‡
GBB-1 250V 125V 200A 10,000A 10,000A 0.17750 - - 0.17750
GBB-1-1/4 250V 125V 200A 10,000A 10,000A 0.17900 - - 0.17900
GBB-2 250V 125V 200A 10,000A 10,000A 0.07000 - - 0.07000
GBB-3 250V 125V 200A 10,000A 10,000A 0.04475 - - 0.04475
GBB-4 250V 125V 200A 10,000A 10,000A 0.03175 - - 0.03175
GBB-5 250V 125V 200A 10,000A 10,000A 0.02125 - - 0.02125
GBB-6 250V 125V 200A 10,000A 10,000A 0.01800 - - 0.01800
GBB-7 250V 125V 200A 10,000A 10,000A 0.01550 - - 0.01550
GBB-8 250V 125V 200A 10,000A 10,000A 0.01360 - - 0.01360
GBB-9 250V 125V 200A 10,000A 10,000A 0.01070 - - 0.01070
GBB-10 250V 125V 200A 10,000A 10,000A 0.00934 - - 0.00934
GBB-12 250V 125V 200A 10,000A 10,000A 0.00620 - - 0.08620
GBB-15 250V 125V 200A 10,000A 10,000A 0.00472 - - 0.00472
GBB-20 250V 125V 200A 200A 200A 0.00365 - - 0.00365
GBB-25 250V 125V 200A 200A 200A 0.00252 - - 0.00252
GBB-30 250V 125V 200A 200A 200A 0.00206 - - 0.00206
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
1/4" x 1-1/4" Fuses
GBB Series Very Fast Acting, Ceramic Tube
Visit us on the Web at www.cooperET.com
3601 Quantum Boulevard Boynton Beach, Flor ida 33426-8638
Tel: +1-561-752-5000 Toll Free: +1-888-414-2645 Fax: +1-561-742-1178
This bulletin is intended to present product design solutions and technical information that will help the end user with design applications. Cooper
Electronic Technologies reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of
any products. Cooper Electronic Technologies 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.
OC-2593 5/03
© Cooper Electronic
Technologies 2003
PACKAGING CODE
Packaging Code Description
BK 100 pieces of fuses packed into a cardboard car ton
BK1 1,000 pieces of fuses packed into a cardboard car ton
OPTION CODE
Option Code Description
BBoard Washable - Hermetically sealed to withstand aqueous cleaning
VAxial leads - brass overcaps with copper and nickel flash, plated in tin lead
