Hirschmann BRS20-12009999-TTCY99HHSESXX.X.XX: BRS20-12TX-EEC Selection Guide for Wide-Temperature Industrial Copper Networks
Hirschmann BRS20-12009999-TTCY99HHSESXX.X.XX identifies the Hirschmann BRS20-12TX-EEC, part number 942170074, a fanless managed DIN rail switch with twelve 10/100BASE-TX RJ45 ports. The specified -40 to +70 °C operating range makes this configuration relevant when the switch location has a wider temperature envelope than a standard indoor control panel. This remains a Fast Ethernet copper-port model.
Reference photograph: shared Hirschmann stock image. The photographed unit may show a different model; this image does not establish the configuration or availability of Hirschmann BRS20-12009999-TTCY99HHSESXX.X.XX.
Catalog specifications for this ordering code
| Brand / series | Hirschmann / BOBCAT |
| Type | BRS20-12TX-EEC |
| Product code | BRS20-12009999-TTCY99HHSESXX.X.XX |
| Part number | 942170074 |
| Network connections | 12 × 10/100BASE-TX RJ45 |
| Mounting | DIN rail |
| Power supply | 2 × 12–24 V DC |
| Power consumption | 9 W |
| Operating temperature | -40 to +70 °C |
| Housing | PC-ABS |
| Protection class | IP30 |
Begin with the temperature at the switch
Use the temperature expected inside the enclosure at the switch position, including heat from adjacent equipment and seasonal extremes. The -40 to +70 °C operating specification does not remove the need for a suitable cabinet. The PC-ABS housing has an IP30 protection rating, and the stated relative-humidity range is 1–95%, non-condensing.
Connection layout and supply arrangement
All twelve network ports use RJ45 copper connections at 10/100 Mbit/s. The catalog lists twisted-pair segments up to 100 m and line or star network arrangements. Plan the inter-switch connection within the same twelve-port total. Power is specified as two 12–24 V DC inputs, with 9 W consumption and a six-pin plug-in block for power and the signaling contact.
Ordering an EEC configuration without losing the exact identity
Retain the full TTCY product code on the purchase request and compare it with the installed label when ordering a replacement. A similar BRS20 name or an identical connector count is insufficient to identify the required temperature version. The catalog lists industrial profiles including PROFINET, EtherNet/IP, Modbus TCP and IEC 61850 MMS server / switch-model functions; confirm the required software behavior and configuration with the applicable documentation.
Quotation details for HKXY
Ask HKXY to quote BRS20-12TX-EEC using the complete ordering code and part number 942170074. Provide quantity, installation temperature, the existing firmware reference and a photograph of the device label. Identify any contractual certificate or documentation requirement explicitly so that it can be checked for the offered configuration.
Technical source: Belden catalog for Hirschmann BRS20-12TX-EEC.
