Single Row Terminal Blocks
A & B4
A4
B4
Specifications
Rating:
See table.
Center Spacing:
0.562” or 9/16” (14.28mm)
Wire Range:
See rating table.
A400303
Screw Size:
#8-32 or #10-32 zinc-plated slotted screws
B484302
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.
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 A4953 blocks. Specify part
number F582 and quantity.
Breakdown Voltage:
6100V
Agency Information:
UL File E62622, CSA File 47235; CE Certified
Dimensions
Inches (Millimeters)
MOUNTING ENDS ONLY
Poles
“A”
Mounting Centers
“B”
Dimension Length
Rating Table
Part Number
Terminal Top
Terminal
Bottom
Wire*
Range Cu
Ratings* Volts/
Amps
A4003XX
A4011XX
A4013XX
A4035XX
A4041XX
A4043XX
A4813XX
A4843XX
A4953XX
B4843XX
# 8 Screw
# 8 Screw
# 8 Screw
# 8 Screw
#10 Screw
#10 Screw
#10 Screw
#10 Screw
#10 Stud
#10 Screw
#8 Stud
Solder
Solder
Closed
Solder
Solder
SolderTurret
#8 Screw
#10 Stud
#8 Screw
8-16 AWG
10-16 AWG
10-16 AWG
8-16 AWG
10-16 AWG
10-16 AWG
10-16 AWG
8-16 AWG
8-16 AWG
8-16 AWG
150V/50A
600V/35A
600V/35A
600V/50A
600V/35A
600V/35A
600V/35A
150V/50A
150V/50A
600V/50A
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
1.690
2.255
2.820
3.385
3.950
4.515
5.080
5.645
6.212
6.777
7.342
7.908
8.473
9.038
9.605
2.120
2.685
3.250
3.817
4.382
4.947
5.513
6.078
6.644
7.210
7.775
8.340
8.905
9.470
10.035
* 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.
Reference Panel Cutout for 6 Position Block
A & B4
Single Row Terminal Blocks
Part Numbering System
Family
Terminal Style
Base/End
Poles
Screw Options
Options
A4
B4
00
- screw top; stud bottom
01
- screw top; solder bottom
03
- screw top only
04
- #10 screw top; solder
term. b.
81
- screw top; solder turret
bottom #10-32
84
- screw top; screw bottom
#10-32
95
- stud top*, stud bottom
*1
- flat base/
mount end
3
- insulator base-
(not available
in 03 terminal
style)/mount end
5
- closed base/
mount end
(available in 03
terminal only
02
to
16
Blank
- std. screws
00
- screws shipped
bulk
04
- brass nickel-
plated†
07
- steel SEMS zinc
plated (not available
with hardware options;
only available on A4011,
A4013, A4021 and
A4035)
A1
to
A9
0.250”
QC
L1
to
L6
marking
options (pg 25)
Covers
- (pg 26)
* Available in 01, 04 terminal styles only
Terminal Styles
Inches (Millimeters)
Hardware Options
Inches (Millimeters)
(Bulk ordering part numbers are in parentheses)
24
EATON
www.eaton.com
Single Row Terminal Blocks
Effective December 2017
Contact Us
Sales and Customer Service
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Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/electronics
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All Rights Reserved
Printed in USA
Publication No. 10682 — BU-MC17075
December 2017
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