The NSJW-ETN21 is an Ethernet communications module for the Omron NSJ programmable controller, terminated via RJ45 for 100Base-TX connectivity. It mounts directly to the chassis — not a DIN rail — so panel design must provide threaded holes or bracket standoffs rather than a rail clip. Approved to CE and cULus standards for industrial control equipment.
Omron NSJW-ETN21 Communications Module, NSJ Series, Active
MPNNSJW-ETN21
End of Life
Omron NSJW-ETN21 NSJ Series Communications Module, RJ45 termination, CE, cULus approved, Chassis Mount.
$1,129.03 – $2,757.91Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Series | NSJ |
Mechanical
| Parameter | Value |
|---|---|
| Mounting type | Chassis Mount |
| Type | Communications Module |
Approvals
| Parameter | Value |
|---|---|
| Approvals / certifications | CE, cULus |
Other specifications
| Parameter | Value |
|---|---|
| Weight | 0.221 lb (100.24 g) |
| Termination style | RJ45 |
Product details
Frequently asked questions
What approvals does the NSJW-ETN21 carry?
CE and cULus.
What is the mounting type?
Chassis mount, not DIN rail.
Can the NSJW-ETN21 replace a CJ1W-ETN21 in a panel?
No, the CJ1W-ETN21 mounts on DIN rail and belongs to the CJ series; the NSJW-ETN21 is chassis-mount for NSJ series. The terminations are both RJ45 but mechanical fit differs.
MPN
NSJW-ETN21