Hirschmann BRS20-12009999-STCY99HHSESXX.X.XX: Engineering and Purchasing Guide to the 12-Port BOBCAT DIN Rail Switch
Hirschmann BRS20-12009999-STCY99HHSESXX.X.XX is the BOBCAT BRS20-12TX managed industrial switch, identified by part number 942170073. Its twelve 10/100BASE-TX RJ45 ports provide a copper-only Fast Ethernet connection layout for equipment mounted around an industrial control cabinet. The fanless DIN rail design combines a 73 mm-wide PC-ABS housing with a specified operating range of 0 to +60 °C.
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-STCY99HHSESXX.X.XX.
Twelve copper connections for a defined cabinet network
Start selection with a port schedule covering controllers, operator terminals, machine interfaces and the connection to the next switch. An upstream link also occupies one of the twelve RJ45 connections, so the number of local devices must be planned accordingly. The listed twisted-pair segment length is 0–100 m; installed cabling and connectors must support the required network performance.
Configuration and installation data
| Brand / series | Hirschmann / BOBCAT |
| Type | BRS20-12TX |
| Product code | BRS20-12009999-STCY99HHSESXX.X.XX |
| Part number | 942170073 |
| Network connections | 12 × 10/100BASE-TX RJ45 |
| Mounting | DIN rail |
| Power supply | 2 × 12–24 V DC |
| Power consumption | 9 W |
| Operating temperature | 0 to +60 °C |
| Housing | PC-ABS |
| Protection class | IP30 |
| Dimensions (W × H × D) | 73 mm × 138 mm × 115 mm |
| Weight | 600 g |
Control power and installation space
The catalog specifies two 12–24 V DC supply inputs, 9 W power consumption and a six-pin plug-in terminal block for power and the signaling contact. A separate two-pin digital input is also listed. Allow room for plug removal, cable bend radius and enclosure ventilation around the 73 × 138 × 115 mm device. Its IP30 rating calls for a suitable cabinet where the location requires additional protection.
Management requirements to confirm before replacement
Industrial profiles listed for this configuration include EtherNet/IP, PROFINET, Modbus TCP and IEC 61850 MMS server / switch-model functions. Review the installed firmware and the plant's management requirements before transferring a configuration. Matching the twelve-port count alone does not confirm that the software setup, monitoring arrangement or exact ordering configuration is suitable for an existing installation.
Request the specified configuration from HKXY
For a quotation, send HKXY the complete product code, BRS20-12TX Type, part number 942170073 and required quantity. Include the existing switch label, supply voltage, cabinet temperature and any project documentation requirements. Confirm the proposed delivery configuration and lead time in the quotation before placing an order.
Technical source: Belden catalog for Hirschmann BRS20-12TX.
