1. Safety instructions
• Switch main power off before connecting or disconnecting the device. Risk of explosion!
• To guarantee sufficient convection cooling, please keep a distance of >40mm above and >20mm
below the device as well as a lateral distance of >25mm to other cold source or heat source.
• Note that the enclosure of the device can become very hot depending on the ambient
temperature and load of the power supply. Risk of burns!
• The main power must be turned off before connecting or disconnecting wires to the terminals!
• Do not introduce any objects into the unit!
• Dangerous voltage present for at least 5 minutes after disconnecting all sources of power.
• The power supplies are built-in units and must be installed in a cabinet or room (condensation
free environment and indoor location) that is relatively free of conductive contaminants.
• The unit must be installed in an IP54 enclosure or cabinet in the final installation.
• CAUTION: FOR USE IN A CONTROLLED ENVIRONMENT.
2. Device description (Fig. 1)
(1) Input terminal block connector
(2) Output terminal block connector
(3) DC voltage adjustment potentiometer
(4) DC OK LED (green)
(5) Universal mounting rail system
3. Mounting (Fig. 2)
The power supply unit can be mounted on 35mm DIN rails in accordance with EN60715. The device should
be installed with input terminal block on the bottom.
Each device is delivered ready to install.
Snap on the DIN rail as shown in Fig. 2:
1. Tilt the unit slightly upwards and put it onto the DIN rail.
2. Push downwards until stopped.
3. Press against the bottom front side for locking.
4. Shake the unit slightly to ensure that it is secured.
4. Dismounting (Fig. 3)
To uninstall, use a flat screwdriver to pull or slide down the latch as shown in Fig. 3. Then slide the PSU in the
opposite direction, release the latch and pull out the PSU from the rail.
5. Connection
The terminal block connectors allow easy and fast wiring.
You can use flexible (stranded wire) or solid cables with cross sections:
Electrical Connections and Wire Size
Stranded / Solid
Torque
mm²
AWG
N·m
lb·in
Input
0.52-3.3
20-12
0.51
4.5
Output
0.52-3.3
20-12
0.51
4.5
To secure reliable and shock proof connections, the stripping length should be 4-5mm (see Fig. 4 (1)). Please
ensure that wires are fully inserted into the connecting terminals as shown in Fig. 4 (2).
In accordance to EN60950 / UL60950 and EN62368 / UL62368, flexible cables require ferrules.
Use appropriate copper cables that are designed to sustain operating temperature of at least 60°C/75°C for
USA or at least 90°C for Canada.
5.1. Input connection (Fig. 1, Fig. 5)
Use L, N and GND connections of input terminal connector (see Fig. 1 (1)) to establish the 100-240 VAC
connection. Typical connection methods are shown in Figure 5.
The unit is protected with an internal fuse (not replaceable) at L pin and it has been tested and approved on
20A (UL) and 16A (IEC) branch circuits without additional protection device. An external protection device
is only required if the supplying branch has an ampacity greater than above. Thus, if an external protective
device is necessary, or utilized, a minimum value of 20A B- or 10A C- characteristic breaker should be used.
The internal fuse must not be replaced by the user.
5.2. Output connection (Fig. 1 (2))
Use the “+” and “-” screw connections to establish the 24VDC connection. The output provides 24VDC.
The output voltage can be adjusted from 22 to 24 VDC on the potentiometer. The green LED DC OK displays
correct function of the output (Fig. 1 (4)). The device has a short circuit and overload protection and an
overvoltage protection limited to 30-34.8 VDC.
5.3. Output characteristic curve
The device functions normal under operating line and load conditions. In the event of a short circuit or
overload the output voltage and current collapses (I
O
= 110-150%). The secondary voltage is reduced and
bounces until short circuit or overload on the secondary side has been removed.
5.4. Thermal behavior (Fig. 6)
In the case of ambient temperatures:
1. At -10°C to -20°C [14°F to -4°F], the output capacity has to be reduced by 2% per degree Celsius
increase in temperature.
2. Above +55°C [131°F], the output capacity has to be reduced by 3.33% per degree Celsius increase
in temperature.
If the output capacity is not reduced when T
Amb
> 55°C [131°F], the device will engage thermal protection
by switching off, i.e., the output voltage will go into latch-off mode until the component temperature cools
down and the AC power is recycled.
0
10
20
30
40
50
60
70
80
90
100
110
-20 -15 -10 -5
0
5 10 15 20 25 30 35 40 45 50 55 60 65 70
Pe
rc
en
ta
ge
o
f M
ax
L
oa
d
(%
)
Surrounding Air Temperature (°C)
23 32 41 50 59 68 77 86 95 104 113 122 131 140 149 158
Surrounding Air Temperature (°F)
5 14
-4
Power Derating Curve for PSU in Vertical Mounting
Figure 5
Figure 2
Figure 1
Figure 4
Figure 6
L N
+ –
L
N
GND
L N
+ –
L
GND/N
L N
+ –
L
N
L N
+ –
L
GND/N
Figure 3
4-5mm
[0.16-0.20in]
1
2
(2)
(4)
(3)
(5)
(1)
1
2
3
2
3
1
FOR TECHNICAL ASSISTANCE CALL 770-844-4200
READ INSTRUCTIONS BEFORE INSTALLING OR OPERATING THIS DEVICE.
KEEP FOR FUTURE REFERENCE.
RHINO PSV24-100S Power Supply
