The Siemens 6GK7343-1EX20-0XE0 is a double-width compact communications processor for the S7-300 platform, delivering Industrial Ethernet connectivity through a single RJ45 port at 10 or 100 Mbit/s. It supports TCP/IP, NTP for network time synchronisation, and SNMP v1 for basic network management—carrying an MIB for structured device interrogation. This module sits on the S7-300 DIN rail, occupying two slot widths (125 mm high, 80 mm wide, 120 mm deep). It draws 0.2 A from the backplane 5 V supply and requires an additional external 24 V DC connection via the 2-pole pluggable terminal block. Power dissipation is 5.8 W, and the module is rated IP20 with an operating range of 0 to 40 °C for vertical installation. Storage and transport tolerances extend from -40 to +70 °C.
Siemens 6GK7343-1EX20-0XE0 CP, RJ45, NTP, SNMP v1
MPN6GK7343-1EX20-0XE0
Siemens 6GK7343-1EX20-0XE0, compact S7-300 double-width communications processor, RJ45 10/100 Mbit/s, NTP Yes, SNMP v1, IP20, current production.
$792.10Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| TCP/IP support | Yes |
| Parameter | Value |
|---|---|
| IP protection degree | IP20 |
| Storage temperature range | -40 ... +70 °C |
| Transport temperature range | -40 ... +70 °C |
| Parameter | Value |
|---|---|
| Width | 80 mm |
| Height | 125 mm |
| Depth | 120 mm |
Product details
Frequently asked questions
Does this CP support NTP for time synchronisation?
Yes, NTP is supported. The module can synchronise its clock with a network time server, which is essential for event timestamp consistency across multiple controllers.
MPN
6GK7343-1EX20-0XE0