Series A4000 & Series B4000
Single Row Terminal Blocks
SPECIFICATIONS
Rating: See table.
Center Spacing: 0.562” or 9/16” (14.28mm)
Wire Range: See rating table.
Screw Size: #8-32 or #10-32 zinc-plated slotted
screws
Torque Rating: #8 screw size 16 lb-in.; #10 screw size
20 lb-in.
Distance Between Barriers: 0.47” (11.9mm)
Operating Temperature: 105°C (221°F) max., -40°C
(-40°F) min.
Molded Material: Black, UL Rated 94V0 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 number F582 and
quantity.
Breakdown Voltage: 6100V
Agency Information: UL File E62622, CSA File 47235;
CE Certified
RATING TABLE
Part Terminal Terminal Wire* Ratings*
Number Top Bottom Range CU Volts/Amps
A4003XX # 8 Screw #8 Stud 8-16 AWG 150V/50A
A4011XX # 8 Screw Solder 10-16 AWG 600V/35A
A4013XX # 8 Screw Solder 10-16 AWG 600V/35A
A4021XX # 8 Screw 0.250 QC 10-16 AWG 600V/35A
A4035XX # 8 Screw Closed 8-16 AWG 600V/50A
A4041XX #10 Screw Solder 10-16 AWG 600V/35A
A4043XX #10 Screw Solder 10-16 AWG 600V/35A
A4051XX #10 Screw 0.250 QC 10-16 AWG 600V/35A
A4803XX #10 Screw #8 Stud 8-16 AWG 150V/50A
A4813XX #10 Screw SolderTurret 10-16 AWG 600V/35A
A4843XX #10 Screw #8 Screw 8-16 AWG 150V/50A
A4953XX #10 Stud #10 Stud 8-16 AWG 150V/50A
B4843XX #10 Screw #8 Screw 8-16 AWG 600V/50A
* All models 30A Max. with 10 AWG;
35-50A ratings with 8 AWG using ring or fork type terminals.
Note: 50A rating achieved with #8 copper wire crimped to ring terminal.
* Dimensions in inches. To convert to millimeters, multiply by 25.4.
A4000 Series Dimensions - in (mm)
0.87
(22.1)
A
B
1.05
(26.7)
#8-32 or #10-32 THD’S
0.562
(14.27) 0.31
(7.9)
0.21
(5.3)
0.57
(14.5)
0.31
(7.9)
0.36 dia.
(9.1)
Note: Above unit supplied with nuts
assembled. Cup washers are optional.
Optional Cup Washers
Assembled
Available on A4003, A4803,
A4843, A4953 & B4843.
CUP
WASHERS
3.31
(84.1)
0.20 DIA.
(5.1)
0.75
(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
B484304
A40110407
A481307
Terminal Blocks - Single Row
Terminal Blocks:
Single & Double Row EuroMag Series Terminal Blocks:
Base & Rail Mount Power Distribution
Blocks Wire Management
Products Edge Connectors,
One-Sided Boards Compliance
References
Series Terminal Style Base/End Poles Screw Options Options
A4
- standard
B4
- barrier
#8-32 SCREW
1.99
(50.6)
0.41
(10.4)
#8-32 HEX NUT
0.94
(23.9)
A4003XX
Terminal Styles Inches (Millimeters)
Part Numbering System
A 4
B 4
0.36
(9.1)
1.41
(35.8)
0.43
(10.9)
0.04
(1.0)
0.17
(4.3)
#8-32 or #10-32 SCREW
A4013XX (#8-32)
A4043XX (#10-32)
#8-32 or #10-32 SCREW
1.41
(35.8)
0.43
(10.9)
0.04
(1.0)
A4011XX (#8-32)
A4041XX (#10-32)
#8-32 SCREW
(TYP)
A4035XX
#10-32 SCREW
0.36
(9.1)
1.85
(47.0)
TURRET
0.80
(20.3)
A4813XX
#10-32 SCREW
1.99
(50.6)
0.41
(10.4)
#8-32 HEX NUT
0.94
(23.9)
A4803XX
#10-32 SCREW
1.55
(39.4)
#8-32 SCREW
0.49
(12.5)
A4843XX
#10-32 SCREW
0.41
(10.4)
1.84
(46.7)
#8-32 SCREW
0.79
(20.1)
0.30
(7.6)
0.09
(2.4)
B4843XX
1.05
(26.7)
#10-32 STUD
0.94
(23.9)
0.41
(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 = 0.250”. (For other orientations, contact factory.)
0.56 (14.3)
*S1
(2S1-J) J301
(J301-J)
1.12 (28.4)
*S2
(2S2-J)
A1
(4A1-J) A2
(4A2-J) A3
(4A3-J)
A9
(4A9-J)
A4
(4A4-J) A5
(4A5-J)
A6
(4A6-J) A7
(4A7-J) A8
(4A8-J)
A4021XX (#8-32)
A4051XX (#10-32)
0.250
(6.35)
1.56
(39.6)
0.03
(0.8) 0.59
(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
- 0.250” QC
01
- screw top; solder bottom mount end
00
- screws shipped bulk †
CW
- cup washer (pg 20)
02
- #8 screw top; 0.250˝ QC bottom
3
- insulator base-
04
- brass nickel-plated
J301
- flat slip-on jumper
03
- screw top only (not available
07
- steel SEMS zinc (2 position only)
(only
04
- #10 screw top; solder term. b. in 03 plated (not available
L1
to
L6
marking options (pg 22)
available
05
- #10 screw top; 0.250˝ QC bottom terminal style) with hardware options;
S1 & S2
- solder lugs/flat
in 84
80
- screw top; stud bottom /mount end not available on A4003,
terminal #10-32 top, #8-32 bottom
5
- closed base/ A4803, A4813, A4843,
style) insulated base mount end B4843)
81
- screw top; solder turret bottom (available
#10-32 in 03
84
- screw top; screw bottom #10-32 terminal
95
- stud top; stud bottom #10-32 only)
*Available in 01, 02, 04 & 05 terminal style only. † Available only on A4003, A4803,
A4843, A4953 & B4843.
*Not available for A4843
Terminal Blocks - Single Row
