Description
• Time-delay, low breaking capacity
• Optional axial leads available
• 5 x 20mm physical size
• Nickel-plated brass endcap construction
• Designed to UL/CSA 248-14
Agency Information
• UL Listed, Guide JDYX, File E19180
• UL Recognition Card (4A), Guide JDYX2, File E19180
• CSA Certified, Class 1422-01, File 53787
• PSE/JET, File 1641-31003-1001
Ordering
Specify product code
• Insert packaging code prefix before part number. E.g.
BK/GMD-250-R
Specify option code if desired
• For axial leads, insert “V” between catalog series and
amp rating. E.g. BK/GMD-V-250-R
• With TR2 packaging code, lead wire length is 19.05mm
(
5
)
0
0.
5
.2m
m
(
+0.1/-0.2
)
(
±
.1
mm
(
±
.38
)
21.10mm
(±.81)
0
.
65
m
m
(
REF
)
(
±
.38
)
5
.
5
4m
m
(
±
.20
)
Dimensions - mm
Electrical Characteristics
Rated Current % of Amp Rating Opening Time
100% None
100mA - 4A 135% 60 minutes maximum
5 seconds minimum
200% 2 minutes maximum
Specifications
Voltage Interrupting Rating (amps) Typical DC Typical Typical Agency Approvals
Part Number Rating at Rated Voltage (50Hz) Cold Resistance Melting I2t Voltage UL PSE CSA
Vac (Ω)** (amps)† Drop (mV)‡ JET
GMD-125-R 250 8.125 0.043 1600 X X
GMD-150-R 250 6.065 0.046 1200 X X
GMD-200-R 250 5.190 0.200 1100 X X
GMD-250-R 250 3.455 0.4 950 X X
GMD-300-R 250 3.215 0.650 800 X X
GMD-315-R 250 2.400 0.890 750 X X
GMD-375-R 250 1.625 0.890 650 X X
GMD-400-R 250 1.505 1.2 600 X X
GMD-500-R 250 1.0645 1.4 550 X X
GMD-600-R 250 0.948 3.1 450 X X
GMD-630-R 250 0.629 3.1 450 X X
GMD-750-R 250 0.4425 4.7 410 X X
GMD-800-R 250 0.4475 6.6 380 X X
GMD-1-R 250 0.3065 12 310 X X X
GMD-1.2-R 250 0.299 16 280 X X X
GMD-1.25-R 250 0.1995 16 245 X X X
GMD-1.5-R 250 0.158 25 240 X X X
GMD-1.6-R 250 0.124 27 220 X X X
GMD-2-R 250 0.107 42 200 X X X
GMD-2.5-R 250 0.0905 94 195 X X X
GMD-3-R 250 0.0655 145 190 X X X
GMD-4-R 250 0.048 300 190 UR X
* Interrupting ratings (Interrupting ratings for 125mA - 3A were measured at 70% - 80% power factor on AC. The interrupting ratings for 4A were measured at 100%
power factor on AC)
** Typical DC Cold Resistance (measured at <10% of rated current)
† Typical Melting I2t (I2t was measured at listed interrupting rating and rated voltage)
‡ Typical Voltage Drop (voltage drop was measured at 20°C ambient temperature at rated current)
250 Vac 125 Vac
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
35 10,000
100 10,000
100 10,000
100 10,000
100 10,000
100 10,000
100 10,000
100 10,000
200 10,000
5 x 20mm Fuses
GMD Series,Time-Delay, Glass Tube
0209 BU-SB08894 Page 1 of 2 Data Sheet 2019
Time-Current Curve
Packaging Code
Packaging Prefix Description
BK 100 fuses packed into a cardboard carton
BK1 1,000 fuses packed into a poly bag
TR2 1,500 fuses packed into tape on a reel (19.05mm lead wire length)
Option Code
Option Code Description
VAxial leads - copper tinned wire with nickel plated brass endcaps
© 2009 Cooper Bussmann
St. Louis, MO 63178
www.cooperbussmann.com
0209 BU-SB08762 Page 2 of 2 Data Sheet 2019
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
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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.