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3 Part Names and Functions
NX-series Digital I/O Unit User’s Manual (W521)
3-1 Part Names
3
3-1-1 Screwless Clamping Terminal Block Type
Applicable Terminal Blocks for Each Unit Model
The following indicates the Terminal Blocks that are applicable to each Unit.
Precautions for Correct Use
You can mount either NX-TB1 or NX-TB2 Terminal Blocks to the Units that the cur-
rent capacity specification of the terminals is 4 A or less.
However, even if you mount the NX-TB2 Terminal Block, the current specification does
not change because the current capacity specification of the terminals on the Units is 4 A or
less.
Refer to A-6 List of Screwless Clamping Terminal Block Models on page A-104 for information
on the models of Terminal Blocks.
Unit model number
Terminal Block
Model
Number of
terminals
Ground terminal Current capacity
NX-ID3 NX-TBA121 12 Not provided 4 A
NX-TBA122 10 A
NX-ID4 NX-TBA161 16 4 A
NX-ID5 NX-TBA162 10 A
NX-IA3117 NX-TBA081 8 4 A
NX-OD2 NX-TBA082 10 A
NX-OD3 NX-TBA121 12 4 A
NX-TBA122 10 A
NX-OD4 NX-TBA161 16 4 A
NX-OD5 NX-TBA162 10 A
NX-OC2 NX-TBA081 8 4 A
NX-TBA082 10 A
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