Siemens SCALANCE PE408PoE 6GK5408-0PA00-8AP2 Port Extender

Overview

Siemens · SCALANCE XM-400

6GK5408-0PA00-8AP2 PE408PoE Port Extender

Siemens 6GK5408-0PA00-8AP2 is a SCALANCE PE408PoE port extender that adds eight 10/100/1000 Mbit/s RJ45 PoE ports to a compatible XM-400 switch.

At a Glance

Brand	Siemens
Model	6GK5408-0PA00-8AP2
Product Type	Eight-port PoE port extender
Core Function	Adds eight Gigabit RJ45 Power-over-Ethernet ports to a compatible SCALANCE XM-400 switch
Application or Compatible Series	Modular SCALANCE XM-400 managed Industrial Ethernet installations requiring PoE device connections

Eight Gigabit Ports

Extend a modular XM-400 switch with eight copper ports operating at 10, 100 or 1000 Mbit/s.

Power over Ethernet

Supply compatible powered devices at up to 30 W per port within the total PoE budget.

Modular Expansion

Mount the extender beside the host XM-400 switch and connect the dedicated expansion interface.

Product Overview

Siemens 6GK5408-0PA00-8AP2 is a SCALANCE PE408PoE port extender that adds eight 10/100/1000 Mbit/s RJ45 PoE ports to a compatible XM-400 switch.

All eight RJ45 ports can supply PoE according to IEEE 802.3at. The port extender uses the specified external 54 V DC supply for powered-device energy. The enclosure supports standard DIN rail and SIMATIC mounting rails.

Ordering focus: confirm the complete article number, compatible XM-400 host, eight-port requirement, PoE load budget, 54 V DC supply and mounting rail.

Key Functions

PoE Port Expansion

All eight RJ45 ports can supply PoE according to IEEE 802.3at.

Separate PoE Supply

The port extender uses the specified external 54 V DC supply for powered-device energy.

Industrial Mounting

The enclosure supports standard DIN rail and SIMATIC mounting rails.

Official Specifications

Copper Ports	8 × RJ45
Ethernet Rates	10/100/1000 Mbit/s
PoE Ports	Up to 8
PoE Standard	IEEE 802.3at
Maximum PoE per Port	30 W
Maximum Total PoE Power	180 W
External Supply Voltage	54 V DC
Permitted Supply Range	51.3 to 56.7 V DC
Maximum Device Current	0.2 A
Power Loss without PoE Load	4.8 W
Input Fuse	F 4 A / 60 V
Operating Temperature	-40 to +60 °C
Storage Temperature	-40 to +85 °C
Protection Rating	IP20
Dimensions	70 × 147 × 125 mm
Technical Weight	Approximately 0.7 kg
Mounting	35 mm DIN rail, S7-300 rail or S7-1500 rail
PROFINET Conformance	Class B

Official source:Siemens official technical data for 6GK5408-0PA00-8AP2.

Frequently Asked Questions

Which host switch accepts 6GK5408-0PA00-8AP2?

Use the extender with a compatible SCALANCE XM-400 modular managed switch and the specified expansion connection.

How many PoE devices can 6GK5408-0PA00-8AP2 supply?

Up to eight powered devices can be connected when the per-port and total power budgets are observed.

What supply is needed for 6GK5408-0PA00-8AP2?

Provide the specified external 54 V DC supply within the permitted range for PoE operation.

Can 6GK5408-0PA00-8AP2 run Gigabit Ethernet?

Each RJ45 port supports 10, 100 and 1000 Mbit/s transmission.

What should be checked before installing 6GK5408-0PA00-8AP2?

Verify host-switch compatibility, cabinet space, rail type, PoE load and the external supply circuit.

Is 6GK5408-0PA00-8AP2 suitable for an unprotected outdoor location?

The IP20 extender requires a suitable protected enclosure.

How should technicians commission 6GK5408-0PA00-8AP2?

Connect the host expansion link first, then energize the PoE supply and verify every port and powered-device load.

Compatibility & Ordering Notes

Before ordering 6GK5408-0PA00-8AP2: confirm the complete article number, compatible XM-400 host, eight-port requirement, PoE load budget, 54 V DC supply and mounting rail.

Compatibility Checklist

• Use a compatible SCALANCE XM-400 modular switch.
• Provide the separate 54 V DC PoE power circuit and input protection.
• Keep the total powered-device load within 180 W.
• Install the IP20 device inside a suitable enclosure.
• Verify rail space and expansion-interface alignment.

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