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Appendices
NX-series EtherNet/IP Coupler Unit User’s Manual (W536)
A-9 Terminal Block Model Numbers
A
A-9-1 Model Number Notation
A-9 Terminal Block Model Numbers
This section describes the models of screwless clamping terminal blocks for the EtherNet/IP Coupler
Units and NX Units.
The terminal block model numbers are assigned based on the following rules.
The following table lists the terminal blocks.
Precautions for Correct Use
Do not use terminal blocks with a terminal current capacity of 4 A because this is not sufficient
for the NX-EIC202.
Refer to 4-5 Terminal Blocks on page 4-11 for the terminal blocks that are applicable to the EtherNet/IP
Coupler Unit.
A-9-1 Model Number Notation
A-9-2 Models
Terminal block
model number
Number of
terminals
Ground termi-
nal mark
Terminal cur-
rent 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
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
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