Teltonika TSW304 — Industrial DIN-Rail Ethernet Switch 4x Gigabit for Industrial Networks

Industrial Ethernet switches for DIN rail mounting are critical network components in automation cabinets, control panels, and technical enclosures where physical space is constrained and network continuity is a hard operational requirement — and the Teltonika TSW304 is the most compact switch in the Teltonika Networks portfolio, purpose-designed for exactly these deployment conditions. Providing 4 Gigabit Ethernet ports in an aluminum housing measuring just 102 × 25 × 81.5 mm with an integrated DIN rail bracket, the TSW304 is deployed in PLC cabinets, industrial distribution panels, and embedded network installations where standard rack-mount switches are not a viable option.

Non-blocking switching at 8 Gbps sustains full throughput across all four 10/100/1000 Mbps ports simultaneously without performance degradation under sustained traffic load. A 128 KB packet buffer and jumbo frame support up to 9216 bytes address the latency and frame-size requirements of industrial communication protocols and controller-to-SCADA data exchange. The wide input voltage range of 7–57 VDC and 9–40 VAC eliminates the need for additional power converters and enables direct integration into non-standardized industrial power infrastructures. Maximum power consumption of 1.44 W is well within the constraints of installations with strict power budgets.

TSW304 supports Profinet Class A conformance via optional order code, providing native compatibility with industrial automation ecosystems built on this standard. Passive PoE capability on ETH1 (Mode B, 9–30 VDC) allows powering of endpoint devices without dedicated local power supplies. The IP30-rated aluminum enclosure is tested to IEC 60068-2-6 (vibration), IEC 60068-2-27 (mechanical shock), and IEC 60068-2-31 (free fall) standards, ensuring reliable operation across the full -40 °C to +75 °C temperature range in sheltered outdoor and harsh industrial environments.

This switch is well-suited for automation system integrators connecting PLCs, sensors, and controllers in industrial Ethernet networks, IT/OT infrastructure teams deploying communication networks within distribution boards and technical cabinets, equipment manufacturers embedding Ethernet connectivity into OEM solutions, and organizations in energy, transportation, and utilities requiring compact switches with a full set of industrial certifications. The Teltonika TSW304 addresses deployment scenarios where minimal footprint, mechanical durability, and industrial protocol compatibility must coexist within a single device.