A & B4
Single RowTerminal 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
*1 - flat base/
02 to 16
Blank - std. screws
A1 to A9 0.250”
mount end
QC
00 - screws shipped
bulk
3 - insulator base-
(not available
in 03 terminal
style)/mount end
L1 to L6 marking
options (pg 25)
04 - brass nickel-
plated†
04 - #10 screw top; solder
term. b.
Covers - (pg 26)
07 - steel SEMS zinc
plated (not available
with hardware options;
only available on A4011,
A4013, A4021 and
A4035)
81 - screw top; solder turret
5 - closed base/
mount end
(available in 03
terminal only
bottom #10-32
84 - screw top; screw bottom
#10-32
95 - stud top*, stud bottom
* Available in 01, 04 terminal styles only
Terminal StylesInches (Millimeters)
Hardware Options Inches (Millimeters)
(Bulk ordering part numbers are in parentheses)
24
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