EN
POE.8AT-AC1 Installation Manual
Product Description
The POE.8AT-AC1 is a DIN-rail mountable single-phase-input power supply, which provides power for
Power over Ethernet (PoE) applications. It injects power to 8 individual PoE channels (IEEE 802.3at)
via RJ45 Ethernet ports.
Intended Use
This device is designed for installation in an enclosure and is intended for commercial use, such as in
industrial control, process control, monitoring and measurement equipment or the like. Do not use this
device in equipment where malfunction may cause severe personal injury or threaten human life.
Installation Instructions
Install device in an enclosure providing protection against electrical, mechanical and fire hazards.
Install the device onto a DIN-rail according to EN 60715 with the input terminals on the bottom of the
device.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper
cables that are designed for a minimum operating temperature of 60°C for ambient temperatures up to
+45°C, 75°C for ambient temperatures up to +60°C and 90°C for ambient temperatures up to +70°C.
Ensure that all strands of a stranded wire enter the terminal connection. Use ferrules for wires on the
input terminals. Unused screw terminals should be securely tightened. Use shielded twisted pair
Ethernet cables specified for usage in IEEE 802.3at.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or
frost is allowed.
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide
protection against spilled liquids.
The isolation of the device is designed to withstand impulse voltages of overvoltage category III
according to IEC 60664-1.
The device is designed as “Class of Protection I” equipment according to IEC 61140. Do not use
without a proper PE (Protective Earth) connection.
The device is suitable to be supplied from TN, TT or IT mains networks. The continuous voltage
between the input terminal and the PE potential must not exceed 300Vac.
The input can also be powered from batteries or similar DC sources. The continuous voltage between
the supply voltage and the PE/ground potential must not exceed 375Vdc.
A disconnecting means shall be provided for the input of the device.
The device is designed for convection cooling and does not require an external fan. Do not obstruct
airflow and do not cover ventilation grid!
The device is designed for altitudes up to 2000m (6560ft).
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and
right side. Increase the 5mm to 15mm in case the adjacent device is a heat source. When the device
is permanently loaded with less than 50%, the 5mm can be reduced to zero.
The device is designed, tested and approved for branch circuits up to 20A without additional protection
device. If an external fuse is utilized, do not use circuit breakers smaller than 6A B- or C-Characteristic
to avoid a nuisance tripping of the circuit breaker.
The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is the
same as the ambient or surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
Do not plug or unplug the device as long as input voltage is present.
Do not unplug the connectors more often than 20 times in total.
Functional Description
The output is electronically protected against no-load, overload and short circuit and can supply any
kind of loads according to IEEE 802.3at.
Do not apply return voltages from the load to the output terminals higher than 56V.
The output voltage can be adjusted with a small flat-blade screwdriver on the front of the unit.
The green DC-OK LED reports an output voltage above 90% of the adjusted voltage of a running
device.
The DC-OK relay monitors the output voltage and the contact is closed when the DC-OK LED is on.
Contact ratings: 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A for resistive loads.
The device is equipped with an over-current protection for each PoE output channel. If the current
exceeds the output current limitation value, the affected PoE channel will be switched off. Unplug the
affected channel for at least 2s. If the over-current is cleared, the device will operate normally again.
The device is equipped with an over-temperature protection. In case of a high temperature, the output
shuts down and starts automatically again after cooling off.
In case of an internal defect, a redundant circuit limits the maximum output voltage to 60V. The output
shuts down and automatically attempts to restart.
The device detects connected PoE loads automatically and will not power connected non-PoE devices
according to IEEE 802.3at.
Technical Data
All values are typical figures specified at 230Vac 50Hz input voltage, 56V
8x 30W output load, 25°C ambient temperature and after a 5 minutes run-
in time unless otherwise noted.
Output voltage
DC 48V
Nominal
Adjustment range
48 – 56Vdc
Factory setting 56V
RJ45 Output channels
8x 30W
Below +60°C ambient
8x 22.5W
At +70°C ambient
Derate linearly b60°C and +70°C
Output current limitation
0.63A
Below +60°C ambient
0.47A At
+70°C
ambient
Input voltage AC
AC 100 - 240V
-15% / +10%
Mains frequency
50 – 60Hz
±6%
Input current AC
2.15 / 1.13A
At 120 / 230Vac
Power factor
0.99 / 0.97
At 120 / 230Vac
Input voltage DC
DC 110 - 150V
±20%
Input current DC
2.35A At
110Vdc
Input inrush current
6 / 9A pk
At 40°C, 120 / 230Vac
Efficiency
93.8 / 95.5%
At 120 / 230Vac
Power losses
15.9 / 11.3W
At 120 / 230Vac
Hold-up time
37 / 37ms
At 120 / 230Vac
Temperature range
-25 to +70°C
Max. wire size (litz wire)
2.5mm² Input
terminals
Wire size AWG
AWG 20-12
Input terminals
Maximum wire diameter
2.4mm Input
terminals
Wire stripping length
7mm / 0.28inch
Input terminals
Tightening torque
0.5Nm / 4.5lb.inch Input terminals
Max. wire size (litz wire)
1.5mm²
DC-OK
terminals
Wire size AWG
AWG 24-16
DC-OK terminals
Maximal wire diameter
1.8 mm
DC-OK terminals
Wire stripping length
6mm / 0.25inch
DC-OK terminals
Tightening torque
0.8Nm / 7lb.inch
DC-OK terminals
Size (wxhxd)
77x128x117mm Without
DIN-rail
Weight
900g / 1.98lb
Functional Diagram
Output
Over-
Voltage
Protection
PFC
Converter
Voltage
Regulator
Power
Converter
Output
Power
Manager
Temper-
ature
Shut-
down
Input Fuse
Input Filter
Input Rectifier
Inrush Current
Limiter
V
OUT
L
N
DC-OK
Contact
DC-OK
LED
13
14
Ch1
Ch2
Ch3
Ch8
PoE
Power Injector
PoE
Output
Channels
Ch1
Ch2
Ch3
Ch8
PoE
Input
Channels
..
.
..
.
..
.
..
.
Power
Conditioning
DC-ok
Relay
Output
Filter
..
.
Temperature Range
Allowed output power
Ambient temperature
0A
-25
8x 30W
0
+60 +70°C
8x 22.5W
