®
Bu s s m a n n
S t u d Typ e J u n c t io n Blo c k s
SPECIFICATIONS
Material: Studs on non-feed-thrus are steel plated; feed-thrus
are copper alloy.
Applications: Heavy-duty ground or power connection points
in AC or DC circuits. Feed-thru or stand alone mount options
available for transformers, communication and computer power
sections along with various vehicle electrical systems.
Benefits: Modular design offers design and manufacturing
flexibility.
Suggested Max. Termination Ratings:
Thread/Stud Sz.
#10-32
Amperages
50 Amps
#1/4-20
#5/16-18
#3/8-16
100 Amps
200 Amps
250 Amps
400 Amps
#1/2-20
Dimensions
1.87"
(47.6)
1.12"
(28.6)
.75"
(19.1)
F
H
J
M (thread size)
A
A
C
B
K
K
G
D
E
L (4 mtg. holes)
L (2 mtg. holes)
Fig. 1
Fig. 2
(Parts C1925, C1933, C1933-1)
(All other parts)
Part
Fig.
A
B
C
D
E
F
G
H
J
K
L
M
Material
Color
C2791*
2
2
2
2
1
2
2
2
2
1
1
2
2.06
.69
.44
.62
.69
.31
.69
.06
.06
1.31
.22 dia. w/.41 dia.
C’bore x .14 deep
1/4-20
Thermoset
Black
(52.4)
(17.5)
(11.2)
(15.9)
(17.5)
(7.9)
(17.5)
(1.6)
(1.6)
(33.3)
C2909*
C2909-1*
C1938*
2.06
(52.4)
.69
(17.5)
.44
(11.2)
.62
(15.9)
1.0
(25.4)
.31
(7.9)
.69
(17.5)
.06
(1.6)
.06
(1.6)
1.31
(33.3)d
.22 dia. w/.41 dia.
C’bore x 14 deep
10-32
1/4-20
3/8-16
1/2-13
3/8-16
3/8-16
3/8-16
3/8-16
1/2-13
5/16-18
1/2-20
Thermoset
Thermoset
Black
Black
Black
Red
2.06
(52.4)
.69
(17.5)
.44
(11.2)
.62
(15.9)
1.0
(25.4)
.31
(7.9)
.69
(17.5)
.06
(1.6)
.06
(1.6)
1.31
(33.3)d
.22 dia. w/.41 dia.
C’bore x 14 deep
2.06
(52.4)
.94
(23.8)
.69
(17.5)
.87
(22.2)
.69
(17.5)
.31
(7.9)
.87
(22.2)
.06
(1.6)
.06
(1.6)
1.31
(33.3)d
.22 dia. w/.41 dia.
C’bore x 14 deep
Thermoplastic
Thermoplastic
Thermoplastic
Thermoplastic
Thermoplastic
Thermoplastic
Thermoplastic
Thermoplastic
Thermoplastic
C1925*
2.75
(69.8)
1.5
(38.1)
1.25
(31.7)
1.25
(31.7)
1.12
(28.6)
37
(9.5)
1.12
(28.6)
.19
4.8)
.19
(4.8)
2.0
(50.8)
.22 dia. w/.44 dia.
C’bore x .16 deep
C4044*
2.06
(52.4)
.87
(22.2)
.62
(15.9)
.62
(15.9)
1.12
(28.6)
.31
(7.9)
.87
(22.2)
.06
(1.6)
.06
(1.6)
1.31
(33.3)
.22 dia. w/.41 dia.
C’bore x .14 deep
Black
Red
C5898*
2.06
(52.4)
.94
(23.8)
.69
(17.5)
.87
(22.2)
.69
(17.5)
.31
(7.9)
.87
(22.2)
.06
(1.6)
.06
(1.6)
1.31
(33.3)
.22 dia. w/.41 dia.
C’bore x 14 deep
JB3816-2
JB3816-3
C1933
2.12
(54.0)
1.0
(25.4)
.62
(15.9)
.94
(23.8)
.69
(17.5)
.31
(7.9)
None
None
None
None
None
.06
(1.6)
None
None
None
None
None
1.37
(34.9)
.22 dia. w/.37 dia.
C’bore x .14 deep
Black
Red
2.12
(54.0)
1.0
(25.4)
.62
(15.9)
.94
(23.8)
.69
(17.5)
.31
(7.9)
.06
(1.6)
1.37
(34.9)
.22 dia. w/.37 dia.
C’bore x .14 deep
2.75
(69.8)
1.44
(36.6)
1.25
(31.7)
1.5
(38.1)
1.12
(28.6)
.37
(9.5)
.19
(4.8)
2
.22 dia.
Black
Black
Black
(50.8)
C1933-1
C6344-1
*Feed-thru
2.75
(69.8)
1.44
(36.3)
1.25
(31.7)
1.5
(38.1)
1.12
(28.6)
.37
(9.5)
.19
(4.8)
2
.22 dia.
(50.8)
2.12
(54.0)
.62
(15.9)
.62
(15.9)
.87
(22.2)
.69
(17.5)
.31
(7.9)
.06
(1.6)
1.37
(34.9)
.22 dia. w/.37 dia.
C’bore x .14 deep
Options – Nuts & washers; consult factory.
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 selected, it should be tested by the
user in all possible applications.
Stud Type J/Blocks
Page 1 of 1
BIF Document: 2070
12-28-98
SB98107
Rev. A
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