Introduction
Plant networks fail for simple reasons: too many devices, too few ports, and no time to configure managed hardware. The Schneider Electric TCSESU053FN0 from the ConneXium range solves that problem. It is an unmanaged Ethernet TCP/IP switch with five shielded RJ45 10/100BASE-TX copper ports. You plug in the cables, apply power, and the segment runs. No configuration software, no IP planning, no commissioning window.
From a maintenance engineer’s point of view, that matters. Every hour spent configuring a switch is an hour not spent on the line. This unit is built for the cabinet, not the office.
Key Parameters That Affect Uptime
Five Copper Ports
Five 10/100BASE-TX ports let you connect a PLC, an HMI, a drive, and two additional devices on one segment. Shielded RJ45 connectors resist the electrical noise common near motors and contactors.
1.6 Gbps Switching Capacity
The 1.6 Gbps switching capacity keeps local traffic moving between all five ports at once. With an 8K MAC table, the switch learns a large number of device addresses without flooding frames across the network.
9.6-32V DC Supply
The wide 9.6-32V DC input accepts a nominal 24V DC SELV supply. Power draw is only 2.2 W, so it adds almost nothing to the cabinet load. If your 24V rail dips during a plant start, the switch keeps running.
Jumbo Frame Support
A 9216-byte jumbo frame size helps when you push large data blocks between controllers and servers. Fewer frames mean less overhead and smoother transfers.
IP20 DIN Rail Housing
The IP20 rating suits protected enclosures. The 35 mm symmetrical DIN rail mount lets you clip the switch beside existing terminals and relays.
Where the TCSESU053FN0 Fits
Machine-Level Networking
A packaging cell often needs a small, fixed switch inside the panel. This model links the controller, the operator panel, and two drives over one copper segment. The unmanaged design removes a common failure point: misconfigured settings after a power cycle.
Panel Retrofit and Expansion
When a legacy hub or a failing switch is pulled from service, the TCSESU053FN0 drops into the same DIN rail space. The 24V DC nominal supply matches most control cabinets, so the retrofit usually needs no new power supply.
Cascaded Line Segments
Max cascade is unlimited, so you can chain switches along a conveyor or process line. Each hop adds ports without a central managed core. For maintenance teams, that means a fault on one segment does not require a network engineer to recover.
Installation and Service Notes
Mount the switch on 35 mm symmetrical DIN rail inside an enclosure that meets the IP20 environment. Feed it from a 24V DC SELV source within the 9.6-32V DC range. Use shielded RJ45 cable in electrically noisy areas and keep cable runs away from drive output wiring.
Because the unit is unmanaged, there are no firmware settings to back up and no configuration file to restore. During a shift change, a technician can swap the unit and reconnect the same five cables. That simplicity is the core service benefit.
Reliability and Maintenance
Inspect the switch periodically for loose connectors, dust buildup, and signs of overheating. Confirm that cabinet ventilation keeps the area around the DIN rail clear. The 2.2 W power draw produces little heat, which supports long service life in a closed panel.
This product is active in production within the ConneXium range, verified as of 2026-09. Please verify current lifecycle status and availability with SpareTechPLC before ordering.
Compatibility and Integration
The TCSESU053FN0 supports Ethernet TCP/IP and carries the Transparent Ready concept. It works with PLCs, HMIs, drives, and other Ethernet devices that use standard TCP/IP over 10/100BASE-TX copper. No managed features are present, so it does not support VLANs, ring protocols, or web-based configuration.
Buyer Checklist
Before you order, confirm the port count, the 24V DC nominal supply, and the DIN rail space in your cabinet. Check that your devices use standard Ethernet TCP/IP. If you need managed features, choose a different model in the ConneXium family. SpareTechPLC stocks this unit and can confirm availability for your project.
Frequently Asked Questions
Is the TCSESU053FN0 managed or unmanaged?
It is an unmanaged switch. It forwards Ethernet TCP/IP traffic without configuration, VLANs, or a web interface.
What power supply does it need?
It accepts 9.6-32V DC SELV with a 24V DC nominal input and draws 2.2 W.
How many devices can I connect?
Five devices connect directly through the shielded RJ45 10/100BASE-TX ports. You can cascade additional switches because max cascade is unlimited.
Can I use it outside an enclosure?
No. The IP20 rating requires a protected environment, such as a control cabinet.
Does it support jumbo frames?
Yes. The switch supports a jumbo frame size of 9216 bytes.
