Appendix
A - 80
NX-series Safety Control Unit User’s Manual (Z930)
A-10 Terminal Block Model Numbers
The Terminal Block model numbers are assigned based on the following rules.
The following table lists the Terminal Blocks
The specifications of NX-TB2 Terminal Blocks equal or exceed the specifications of
NX-TB1 Terminal Blocks. When ordering, always order NX-TB2 Terminal Blocks.
A-10-1 Model Number Notation
A-10-2 Models
Terminal Block
model number
Number of terminals
Ground terminal
mark
Terminal current
capacity
NX-TBA081 8 None 4 A
NX-TBA121 12
NX-TBA161 16
NX-TBB121 12
NX-TBB161 16
NX-TBA082 8 10 A
NX-TBA122 12
NX-TBA162 16
NX-TBB122 12
NX-TBB162 16
NX-TBC082 8 Provided
NX-TBC162 16
NNX-TBX-TB
Product Type
TB: Terminal block
Terminal Specification
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
Number of Terminals
08: 8 terminals
12: 12 terminals
16: 16 terminals
Other Specification
1: Terminal current capacity of 4 A
2: Terminal current capacity of 10 A