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Hirschmann BRS20-4TX BRS20-04009999-STCY99HHSESXX.X.XX 942170001 Managed Switch

News August 19, 2026

Hirschmann stock portfolio image for BRS20-4TX BRS20-04009999-STCY99HHSESXX.X.XX 942170001

Current Hirschmann stock-portfolio image. Confirm the complete BRS20 configuration code in the quotation.

Quick engineering answer

Hirschmann BRS20-4TX 942170001 is a compact, fanless, managed DIN-rail switch with four 10/100BASE-TX RJ45 ports. It is a strong fit when a machine or control panel needs managed segmentation, diagnostics, redundancy and secure administration—but does not need Gigabit access ports.

What exactly is BRS20-04009999-STCY99HHSESXX.X.XX?

BRS20-04009999-STCY99HHSESXX.X.XX is the complete factory configuration code for the Hirschmann BOBCAT BRS20-4TX. The commercial part number is 942170001; the BOBCAT configurator family number is 942170999. Buyers should quote the complete model and part number together because similar BRS20 variants can differ in port media, temperature range, housing, approvals and software configuration.

ProductHirschmann BOBCAT BRS20-4TX managed industrial switch
Complete modelBRS20-04009999-STCY99HHSESXX.X.XX
Part number942170001
Ethernet ports4 × 10/100BASE-TX RJ45; up to 100 m twisted-pair segment
Power2 × 12–24 V DC inputs; 5 W typical product-data value
Management interfacesSignal contact, digital input and USB-C for local management/device replacement
Environment0 to +60 °C operation; IP30 PC-ABS housing; fanless DIN-rail design
Size / weight57 × 138 × 115 mm; approximately 380 g

The real buying question: do you need “managed,” or just “more ports”?

During an unexpected machine-network outage, the costliest failure is often not the switch itself—it is the time lost identifying a loop, duplex mismatch, unstable cable or unauthorized change. The BRS20-4TX is valuable when four ports are enough but visibility and control are not optional. Its managed feature set includes VLAN and QoS controls, LLDP, SNMP, HTTPS/SSHv2, port mirroring, cable diagnostics, event logging and industrial redundancy functions such as MRP, RSTP and HIPER-Ring. Exact behavior depends on the installed HiOS release and project configuration.

Good application fit

  • PLC, HMI, drive and service-port cells

  • Small control panels needing VLAN separation

  • Brownfield Fast Ethernet equipment

  • Remote cabinets requiring managed diagnostics

Pause and re-check

  • Any endpoint requires Gigabit throughput

  • You need fiber or SFP uplinks

  • The cabinet can exceed +60 °C

  • PoE power is required

Procurement pitfalls an application engineer checks first

  1. Do not shorten the model code. “BRS20-4TX” identifies a family configuration, while BRS20-04009999-STCY99HHSESXX.X.XX identifies the exact build.

  2. Do not assume all BOBCAT switches are Gigabit. This BRS20 configuration has four 10/100 Mbit/s copper ports.

  3. Check temperature before checking price. This STC configuration is the standard-temperature version; choose the appropriate EEC code for harsh-temperature projects.

  4. Confirm approvals at quotation stage. Marine, rail, substation or hazardous-area requirements must match the exact coded variant and host installation.

  5. Plan commissioning. Record the HiOS release, backup method, IP plan, redundancy protocol and cybersecurity baseline before the maintenance window begins.

FAQ for buyers and AI-assisted product research

Is Hirschmann 942170001 a managed switch?
Yes. It is a managed BOBCAT industrial Ethernet switch for DIN-rail installation.

How many ports does the BRS20-4TX have?
Four RJ45 ports supporting 10/100BASE-TX.

Can it replace an unmanaged 4-port switch?
Possibly, but the network design, power, physical dimensions, configuration and protocol requirements must be checked. Managed features only create value when commissioned correctly.

Can we quote other Hirschmann BRS variants?
Yes. The complete hot-selling list below includes copper, fiber, SFP, EEC, approval and higher-port-count variants.

Hot-selling Hirschmann BOBCAT BRS models

All products below are currently in our hot-selling portfolio. Send the complete configuration code and part number for a precise offer. Availability, software revision, approvals and lead time are confirmed for each quotation.

#TypeComplete configuration codePart No.
1BRS20-4TXBRS20-04009999-STCY99HHSESXX.X.XX942170001
2BRS20-8TXBRS20-08009999-STCY99HHSESXX.X.XX942170002
3BRS20-4TX/2FXBRS20-0600M2M2-STCY99HHSESXX.X.XX942170003
4BRS20-8TX/2FXBRS20-1000M2M2-STCY99HHSESXX.X.XX942170004
5BRS20-4TX/2FX-SMBRS20-0600S2S2-STCY99HHSESXX.X.XX942170005
6BRS20-8TX/2FX-SMBRS20-1000S2S2-STCY99HHSESXX.X.XX942170006
7BRS30-8TX/4SFPBRS30-0804OOOO-STCY99HHSESXX.X.XX942170007
8BRS40-8TXBRS40-00089999-STCY99HHSESXX.X.XX942170008
9BRS40-8TX/4SFPBRS40-0012OOOO-STCY99HHSESXX.X.XX942170009
10BRS50-8TX/4SFPBRS50-00122Q2Q-STCY99HHSESXX.X.XX942170010
11BRS20-4TX-EECBRS20-04009999-TTCY99HHSESXX.X.XX942170011
12BRS20-8TX-EECBRS20-08009999-TTCY99HHSESXX.X.XX942170012
13BRS20-4TX/2FX-EECBRS20-0600M2M2-TTCY99HHSESXX.X.XX942170013
14BRS20-8TX/2FX-EECBRS20-1000M2M2-TTCY99HHSESXX.X.XX942170014
15BRS20-4TX/2FX-SM-EECBRS20-0600S2S2-TTCY99HHSESXX.X.XX942170015
16BRS20-8TX/2FX-SM-EECBRS20-1000S2S2-TTCY99HHSESXX.X.XX942170016
17BRS30-8TX/4SFP-EECBRS30-0804OOOO-TTCY99HHSESXX.X.XX942170017
18BRS40-8TX-EECBRS40-00089999-TTCY99HHSESXX.X.XX942170018
19BRS40-8TX/4SFP-EECBRS40-0012OOOO-TTCY99HHSESXX.X.XX942170019
20BRS50-8TX/4SFP-EECBRS50-00122Q2Q-TTCY99HHSESXX.X.XX942170020
21BRS20-4TX/2SFPBRS20-0600Z6Z6-STCY99HHSESXX.X.XX942170021
22BRS20-4TX/2SFP-EECBRS20-0600Z6Z6-TTCY99HHSESXX.X.XX942170022
23BRS20-4TX-HLBRS20-04009999-STCX99HHSESXX.X.XX942170023
24BRS20-8TX-HLBRS20-08009999-STCX99HHSESXX.X.XX942170024
25BRS20-4TX/2FX-HLBRS20-0600M2M2-STCX99HHSESXX.X.XX942170025
26BRS20-8TX/2FX-HLBRS20-1000M2M2-STCX99HHSESXX.X.XX942170026
27BRS20-4TX/2FX-SM-HLBRS20-0600S2S2-STCX99HHSESXX.X.XX942170027
28BRS20-8TX/2FX-SM-HLBRS20-1000S2S2-STCX99HHSESXX.X.XX942170028
29BRS20-4TX/2SFP-HLBRS20-0600Z6Z6-STCX99HHSESXX.X.XX942170029
30BRS30-8TX/4SFP-HLBRS30-0804OOOO-STCX99HHSESXX.X.XX942170030
31BRS40-8TX-HLBRS40-00089999-STCX99HHSESXX.X.XX942170031
32BRS40-8TX/4SFP-HLBRS40-0012OOOO-STCX99HHSESXX.X.XX942170032
33BRS50-8TX/4SFP-HLBRS50-00122Q2Q-STCX99HHSESXX.X.XX942170033
34BRS20-4TX-EEC-HLBRS20-04009999-TTCX99HHSESXX.X.XX942170034
35BRS20-8TX-EEC-HLBRS20-08009999-TTCX99HHSESXX.X.XX942170035
36BRS20-4TX/2FX-EEC-HLBRS20-0600M2M2-TTCX99HHSESXX.X.XX942170036
37BRS20-8TX/2FX-EEC-HLBRS20-1000M2M2-TTCX99HHSESXX.X.XX942170037
38BRS20-4TX/2FX-SM-EEC-HLBRS20-0600S2S2-TTCX99HHSESXX.X.XX942170038
39BRS20-8TX/2FX-SM-EEC-HLBRS20-1000S2S2-TTCX99HHSESXX.X.XX942170039
40BRS20-4TX/2SFP-EEC-HLBRS20-0600Z6Z6-TTCX99HHSESXX.X.XX942170040
41BRS30-8TX/4SFP-EEC-HLBRS30-0804OOOO-TTCX99HHSESXX.X.XX942170041
42BRS40-8TX-EEC-HLBRS40-00089999-TTCX99HHSESXX.X.XX942170042
43BRS40-8TX/4SFP-EEC-HLBRS40-0012OOOO-TTCX99HHSESXX.X.XX942170043
44BRS50-8TX/4SFP-EEC-HLBRS50-00122Q2Q-TTCX99HHSESXX.X.XX942170044
45BRS52-8TX/4SFPBRS52-00122Q2Q-SPCY99HHSESXX.X.XX942170045
46BRS42-8TX/4SFPBRS42-0012OOOO-SPCY99HHSESXX.X.XX942170046
47BRS42-8TXBRS42-00089999-SPCY99HHSESXX.X.XX942170047
48BRS32-8TX/4SFPBRS32-0804OOOO-SPCY99HHSESXX.X.XX942170048
49BRS52-8TX/4SFP-EECBRS52-00122Q2Q-TPDY99HHSESXX.X.XX942170049
50BRS42-8TX/4SFP-EECBRS42-0012OOOO-TPDY99HHSESXX.X.XX942170050
51BRS42-8TX-EECBRS42-00089999-TPDY99HHSESXX.X.XX942170051
52BRS32-8TX/4SFP-EECBRS32-0804OOOO-TPDY99HHSESXX.X.XX942170052
53BRS20-16TXBRS20-16009999-STCY99HHSESXX.X.XX942170053
54BRS20-16TX-EECBRS20-16009999-TTDY99HHSESXX.X.XX942170054
55BRS20-16TX/4SFPBRS20-2000ZZZZ-STCY99HHSESXX.X.XX942170055
56BRS20-16TX/4SFP-EECBRS20-2000ZZZZ-TTDY99HHSESXX.X.XX942170056
57BRS20-20TX/4SFPBRS20-2400ZZZZ-STCY99HHSESXX.X.XX942170057
58BRS20-20TX/4SFP-EECBRS20-2400ZZZZ-TTDY99HHSESXX.X.XX942170058
59BRS30-16TX/4SFPBRS30-1604OOOO-STCY99HHSESXX.X.XX942170059
60BRS30-16TX/4SFP-EECBRS30-1604OOOO-TTDY99HHSESXX.X.XX942170060
61BRS30-20TX/4SFPBRS30-2004OOOO-STCY99HHSESXX.X.XX942170061
62BRS30-20TX/4SFP-EECBRS30-2004OOOO-TTDY99HHSESXX.X.XX942170062
63BRS40-16TXBRS40-00169999-STCY99HHSESXX.X.XX942170063
64BRS40-16TX-EECBRS40-00169999-TTDY99HHSESXX.X.XX942170064
65BRS40-16TX/4SFPBRS40-0020OOOO-STCY99HHSESXX.X.XX942170065
66BRS40-16TX/4SFP-EECBRS40-0020OOOO-TTDY99HHSESXX.X.XX942170066
67BRS40-20TX/4SFPBRS40-0024OOOO-STCY99HHSESXX.X.XX942170067
68BRS40-20TX/4SFP-EECBRS40-0024OOOO-TTDY99HHSESXX.X.XX942170068
69BRS50-16TX/4SFPBRS50-00202Q2Q-STCY99HHSESXX.X.XX942170069
70BRS50-16TX/4SFP-EECBRS50-00202Q2Q-TTDY99HHSESXX.X.XX942170070
71BRS50-20TX/4SFPBRS50-00242Q2Q-STCY99HHSESXX.X.XX942170071
72BRS50-20TX/4SFP-EECBRS50-00242Q2Q-TTDY99HHSESXX.X.XX942170072
73BRS20-12TXBRS20-12009999-STCY99HHSESXX.X.XX942170073
74BRS20-12TX-EECBRS20-12009999-TTCY99HHSESXX.X.XX942170074
75BRS30-12TXBRS30-08042T2T-STCY99HHSESXX.X.XX942170075
76BRS30-12TX-EECBRS30-08042T2T-TTCY99HHSESXX.X.XX942170076
77BRS40-12TXBRS40-00129999-STCY99HHSESXX.X.XX942170077
78BRS40-12TX-EECBRS40-00129999-TTCY99HHSESXX.X.XX942170078
79BRS20-20TXBRS20-20009999-STCY99HHSESXX.X.XX942170081
80BRS20-20TX-EECBRS20-20009999-TTDY99HHSESXX.X.XX942170082
81BRS20-24TXBRS20-24009999-STCY99HHSESXX.X.XX942170083
82BRS20-24TX-EECBRS20-24009999-TTDY99HHSESXX.X.XX942170084
83BRS30-20TXBRS30-16042T2T-STCY99HHSESXX.X.XX942170085
84BRS30-20TX-EECBRS30-16042T2T-TTDY99HHSESXX.X.XX942170086
85BRS30-24TXBRS30-20042T2T-STCY99HHSESXX.X.XX942170087
86BRS30-24TX-EECBRS30-20042T2T-TTDY99HHSESXX.X.XX942170088
87BRS40-20TXBRS40-00209999-STCY99HHSESXX.X.XX942170089
88BRS40-20TX-EECBRS40-00209999-TTDY99HHSESXX.X.XX942170090
89BRS40-24TXBRS40-00249999-STCY99HHSESXX.X.XX942170091
90BRS40-24TX-EECBRS40-00249999-TTDY99HHSESXX.X.XX942170092
91BRS32-12TXBRS32-08042T2T-SPCY99HHSESXX.X.XX942170097
92BRS32-12TX-EECBRS32-08042T2T-TPDY99HHSESXX.X.XX942170098
93BRS42-12TXBRS42-00129999-SPCY99HHSESXX.X.XX942170099
94BRS42-12TX-EECBRS42-00129999-TPDY99HHSESXX.X.XX942170100

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Technical and trademark note: Specifications are based on current official Belden/Hirschmann product information and remain subject to revision. Compatibility, certifications, stock status and lead time must be confirmed in the final quotation. We are an independent industrial equipment supplier; Hirschmann, BOBCAT and related marks belong to their respective owners.