21
Series A4000 & Series B4000
Single Row Terminal Blocks
SPECIFICATIONS
Rating: See table.
Center Spacing: .562” or 9/16” (14.28 mm)
Wire Size: See rating table.
Screw Size: #8-32 or #10-32 zinc plated screws
Torque Rating: #8 screw size 16 in-lb. max; #10 screw
size 20 in-lb. max.
Distance Between Barriers: .47” (11.9 mm)
Operating Temperature: 105°C (221°F) max., -40°C
(-40°F) min.
Molded Material: Black, UL Rated 94VO Thermoplastic
Hardware: Bottom studs supplied with nuts assembled.
Cup washers are optional on bottom studs but are not
recommended with ring terminals.
Extended Hex Nuts: Optional extended, slotted hex nuts
enable easier installation and removal with hex wrench or
screwdriver. Available in bulk for the #10-32 studs on
Series A4953 blocks. Specify part no. F582 and quantity.
Approvals: UL E62622; CSA LR15364; CE Certified
RATING TABLE
Part Terminal Terminal Wire Ratings*
Number Top Bottom Range CU
A4003XX # 8 Screw #8 Stud 10-16 AWG 150V; 50 amps
A4011XX # 8 Screw Solder 10-16 AWG 600V; 35 amps
A4013XX # 8 Screw Solder 10-16 AWG 600V; 35 amps
A4021XX # 8 Screw .250 QC 10-16 AWG 600V; 35 amps
A4035XX # 8 Screw Closed 10-16 AWG 600V; 50 amps
A4041XX #10 Screw Solder 10-16 AWG 600V; 35 amps
A4051XX #10 Screw 250 QC 10-16 AWG 600V; 35 amps
A4803XX #10 Screw #8 Stud 10-16 AWG 150V; 50 amps
A4813XX #10 Screw SolderTurret 10-16 AWG 600V; 35 amps
A4843XX #10 Screw #8 Screw 10-16 AWG 150V; 50 amps
A4953XX #10 Stud #10 Stud 10-16 AWG 150V; 50 amps
B4843XX #10 Screw #8 Screw 10-16 AWG 600V; 50 amps
* All models 30A Max. with 10 AWG;
35-50A ratings with 8 AWG using ring or fork type terminals.
Note: 1. 50A rating achieved with #8 copper wire crimped to ring terminal.
2. Insulated ring terminal required for bottom termination on B4843XX.
* Dimensions in inches. To convert to millimeters, multiply by 25.4.
A4000 Series
.87
(22.1)
A
B
1.05
(26.7)
#8-32 or #10-32 THD’S
.562
(14.27) .31
(7.9)
.21
(5.3)
.57
(14.5)
.31
(7.9)
.36 dia.
(9.1)
Note: Above unit supplied with n uts
assemb led. Cup washer s are optional.
Optional Cup Washers
Assembled
Available on A4003, A4803,
A4843, A4953 & B4843.
CUP
WASHERS
3.31
(84.1)
.20 DIA.
(5.1)
.75
(19.1)
3.93
(99.8)
Reference Panel Cutout for 6 Position Block
Poles A (in.) B (in.)
Mount Centers Length
2 1.69 2.12
3 2.25 2.68
4 2.81 3.24
5 3.37 3.80
6 3.93 4.36
7 4.50 4.93
8 5.06 5.34
9 5.62 6.05
10 6.18 6.61
11 6.74 7.17
12 7.31 7.74
13 7.87 8.30
14 8.43 8.86
15 8.99 9.44
16 9.55 9.98
17 10.12 10.55
18 10.68 11.11
A403508
Cooper Bussmann l 7300 W. Wilson Ave l Chicago, IL 60656-4708 l Fax: 708-867-2211 l Phone: 708-867-4600
Website: http://www.busscc.com
INDEX
22
Series Terminal Style Base/End Poles Screw Options Options
n
nn
nn
nn
nn
nn
nn
nn
nn
nn
nn
n
n
nn
n
A4
- standard
B4
- barrier
1.05
(26.7)
#8-32 SCREW
1.99
(50.6)
.41
(10.4)
#8-32 HEX NUT
.94
(23.9)
A4003XX
Terminal Styles Inches (Millimeters)
Part Numbering System
A 4
B 4
1.05
(26.7)
.36
(9.1)
1.41
(35.8)
W.C. .43
(10.9)
.04
(1.0)
.17
(4.3)
#8-32 or #10-32 SCREW
A4013XX (#8-32)
A4043XX (#10-32)
1.05
(26.7)
#8-32 or #10-32 SCREW
1.41
(35.8)
W.C.
.43
(10.9)
.04
(1.0)
A4011XX (#8-32)
A4041XX (#10-32)
1.05
(26.7)
#8-32 SCREW
(TYP)
A4035XX
1.05
(26.7)
#10-32 SCREW
.36
(9.1)
1.85
(47.0)
TURRET
.80
(20.3)
A4813XX
A4803XX
1.05
(26.7)
#10-32 SCREW
1.55
(39.4)
#8-32 SCREW
.49
(12.5)
A4843XX
1.05
(26.7)
#10-32 SCREW
.41
(10.4)
1.84
(46.7)
#8-32 SCREW
.79
(20.1)
.30
(7.6)
.09
(2.4)
B4843XX
1.05
(26.7)
#10-32 STUD
.94
(23.9)
.41
(10.4)
#10-32 HEX NUT
1.99
(50.6)
A4953XX
Hardware Options (Bulk ordering part numbers are in parentheses.) Inches (Millimeters)
Solder Lugs Jumpers Quick Connects Blade Width A = .250”. (For other orientations, contact factory.)
.56 (14.3)
S1
(2S1) J301
1.12 (28.4)
S2
(2S2)
A1
(4A1) A2
(4A2) A3
(4A3 )
A9
(4A9)
A4
(4A4) A5
(4A5) A6
(4A6)
A7
(4A7) A8
(4A8)
A4021XX (#8-32)
A4051XX (#10-32)
1.05
(26.7)
.250
(6.35)
1.56
(39.6)
.03
(.8)
.59
(15.0)
#8-32 or #10-32 SCREW
00
- screw top; stud bottom
1
- flat base/
02
to
18 Blank
- std. screw
A1
to
A9
- .250” QC
01
- screw top; solder bottom mount end
00
- screws shipped bulk
CW
- cup washer
02
- #8 screw top; .250 QC bottom
3
- insulator base/
04
- brass nickel plated
J301
- flat slip-on jumper (2 position only)
03
- screw top only mount end
07
- steel SEMS zinc
L1
to
L6
marking options (pg 23)
04
- #10 screw top; solder term. b.
5
- closed base/ plated (not available
S1 & S2
- solder lugs/flat
05
- #10 screw top; .250 QC bottom mount end with hardware options;
80
- screw top; stud bottom not available on A4003,
insulated base A4803, A4813, A4843,
81
- screw top; solder turret bottom B4843)
84
- screw top; screw bottom
95
- stud top; stud bottom
Cooper Bussmann l 7300 W. Wilson Ave l Chicago, IL 60656-4708 l Fax: 708-867-2211 l Phone: 708-867-4600
Website: http://www.busscc.com
INDEX