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Siemens 6GK5124-0BA00-2AA3 SCALANCE X124 Ethernet Switch

Siemens 6GK5124-0BA00-2AA3 SCALANCE X124 Ethernet Switch

Product Name: SCALANCE X124 Unmanaged Industrial Ethernet Switch

Brand Name: Siemens

Model Number: 6GK5124-0BA00-2AA3

Place of Origin: Germany

Warranty: 12 Months

Whatsapp: +86 180 2077 6782

Email: [email protected]

Appurtenance:

siemens 6gk5124 0ba00 2aa3 scalance x124 unmanaged industrial ethernet switch-1

Overview
Network Guide
Specs
Supply
FAQ
Other Products
Recommended Products

Unmanaged Industrial Ethernet switch with twenty-four 10/100 Mbit/s copper ports

The legacy SCALANCE X124 provides 24 RJ45 Fast Ethernet ports for compact plant-network distribution. It uses redundant 24 V DC feeds and a signaling contact but has no managed configuration, so an accurate port map and loop-free network design are essential during replacement.

Exact X124 check: Do not confuse 6GK5124-0BA00-2AA3 with later XC124 variants. Confirm all 24 cable destinations, redundant power inputs, signaling-contact logic, mounting rail, cabinet clearance and any ring or loop dependency before moving a single cable.

Network Guide

6GK5124-0BA00-2AA3 is the original SCALANCE X124 unmanaged Industrial Ethernet switch with 24 shielded RJ45 ports operating at 10 or 100 Mbit/s. The unit is intended for DIN rail, S7-300 rail or wall mounting inside an industrial enclosure.

Because this switch does not hold a managed VLAN or redundancy configuration, the installation record is the main recovery tool. Label every port at both ends, document redundant 24 V feeds and the signaling contact, and identify any accidental or intentional loop before replacement.

A numbered cable and power record is the configuration backup for this unmanaged switch.

Port-by-port map

Label all 24 RJ45 cables with local port, destination device, remote port and service importance.

Power record

Identify both 24 V feeds, polarity, protective earth and the source monitored by the signaling contact.

Mechanical fit

Confirm the cabinet rail, 180 x 125 x 124 mm envelope, ventilation and cable bend clearance.

Link LEDs and the signaling contact provide the primary evidence for an unmanaged X124.

Normal state

Photograph power, fault and representative port LEDs while the installed network is healthy.

Cable test

Check shielded copper cable, connector latch, pinout and partner speed before changing equipment.

Loop control

Trace parallel paths and confirm the network contains no unmanaged loop that could create a broadcast storm.

Specs

Product type designation	SCALANCE X124	Order number	6GK5124-0BA00-2AA3
Switch class	Unmanaged Industrial Ethernet switch	Copper ports	24 x RJ45
Port speed	10 / 100 Mbit/s	Supply	24 V DC, redundant inputs
Supply range	18 to 32 V DC	Maximum current	Approximately 0.45 A
Power loss	Approximately 4.8 W	Operating temperature	-20 to +70 degrees C
Degree of protection	IP30	Mounting options	DIN rail, S7-300 rail or wall

Supply

Quotation

Current price and availability

Payment

T/T or agreed terms

Lead time

Confirmed with quotation

Shipping

DHL, FedEx, UPS or agreed freight

Warranty

12 months

CONTACT

Jim Pei

[email protected]

+86 180 2077 6782

FAQ

How can I distinguish 6GK5124-0BA00-2AA3 from a later SCALANCE XC124 before purchase?

Use the complete Siemens order number, not the 24-port appearance. Confirm the legacy X124 enclosure, connector arrangement, redundant 24 V terminal and signaling contact against the installed label and cabinet layout.

What should be documented before replacing 6GK5124-0BA00-2AA3?

Create a numbered map for all 24 RJ45 ports with cable destination and service, photograph the normal LEDs and record both 24 V feeds, protective earth and signaling-contact wiring. Identify any unused or intentionally isolated ports before moving cables.

Why can one device remain offline after it is moved to 6GK5124-0BA00-2AA3?

Check that the cable was returned to the documented port, inspect both connector latches and shield termination and verify link at the remote device. Confirm speed and auto-negotiation behavior, then test the copper path before replacing the switch.

What can cause widespread packet loss after installing 6GK5124-0BA00-2AA3?

Because the X124 is unmanaged, an accidental Ethernet loop can create a broadcast storm. Compare the new cabling with the approved port map, disconnect only the suspected duplicate path during a controlled window and verify that no managed upstream topology was bypassed.

Why can the fault contact on 6GK5124-0BA00-2AA3 change state even though traffic is still passing?

Check both redundant 24 V inputs, their terminal seating and the documented signaling-contact circuit. One supply path can be missing while the other powers the switch, so traffic alone does not prove that the power and alarm wiring are healthy.

How should 6GK5124-0BA00-2AA3 be commissioned after a full cabinet replacement?

Energize the documented power feeds, verify the normal fault state and reconnect labeled cables in controlled groups. Confirm link and application communication for each group, watch for broadcast growth and complete the port map with the final LED and alarm results.

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