Appendices
A - 64
NX-series Position Interface Units User’s Manual (W524)
A-4 Terminal Block Model Numbers
This appendix describes how to interpret Terminal Block model numbers and the Terminal Block mod-
els that are applicable to each Unit.
The Terminal Block model numbers are assigned based on the following rules.
The following table lists the Terminal Blocks
Note When you purchase a Terminal Block, purchase an NX-TB2.
A-4-1 Model Number Notation
A-4-2 Model Number Table
Terminal Block
model number
No. of terminals
Ground terminal
mark
Terminal current
capacity
NX-TBA081 8 None 4 A
NX-TBA121 12 None 4 A
NX-TBA161 16 None 4 A
NX-TBB121 12 None 4 A
NX-TBB161 16 None 4 A
NX-TBA082 8 None 10 A
NX-TBA122 12 None 10 A
NX-TBA162 16 None 10 A
NX-TBB122 12 None 10 A
NX-TBB162 16 None 10 A
NX-TBC082 8 Provided 10 A
NX-TBC162 16 Provided 10 A
NX-TB

Product Type
Terminal Specification
Number of Terminals
Other Specification
1: Terminal current capacity of 4 A
2: Terminal current capacity of 10 A
08: 8 terminals
12: 12 terminals
16: 16 terminals
A: Column number indications A and B, no functional ground terminals
B: Column number indications C and D, no functional ground terminals
C: Column number indications A and B, functional ground terminals
TB: Terminal block