TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
PJ
Highlights & Features
•
•
•
•
•
•
•
Universal AC input voltage range (85 Vac – 264 Vac)
Low Inrush Current / Low Leakage Current
High efficiency and PF factor to conserve energy
Conforms to harmonic current IEC/EN/ BS EN 61000-3-2, Class A
Conformal coating on PCBA to protect against chemical and
dust pollutants
Versatile configuration options: Open Frame, L Frame,
Enclosed
Long life capacitors
Safety Standards
CB Certified for worldwide use
Model Number:
Unit Weight:
PJ-24V50W □NA
Open Frame: 0.16 kg (0.35 lb)
Enclosed: 0.28 kg (0.62 lb)
Dimensions (L x W x D): Open Frame:
132 x 50 x 26.6 mm
(5.20 x 1.97 x 1.05 inch)
Enclosed:
162 x 60 x 36 mm
(6.38 x 2.36 x 1.42 inch)
General Description
The PJ series of Open Frame Power Supply comes with universal AC input at 85Vac to 264Vac. Other features include low leakage /
Inrush current and conformal coating on the PCBAs to provide protection against dust and chemical pollutants. The built-in active PFC
provides PF > 0.97 and fulfills Harmonic Current Emission according to IEC/EN/ BS EN 61000-3-2. The PJ series is certified for EMC
standards according to EN/ BS EN 55011 for industrial, scientific and medical (ISM) radio-frequency equipment and EN/ BS EN 55032 for
Industrial Technology Equipment (ITE) radio-frequency equipment and EMS according to EN/ BS EN 55024. In addition, the detachable
input and output connectors are from JST and only recognized Japanese capacitors are used.
Metal chassis and case cover are available as options for different installation preferences. The PJ series conforms to major international
safety standards according to EN/UL 62368-1 standards
Model Information
PJ Open Frame Power Supply
Model Number
Input Voltage Range
Rated Output Voltage
Rated Output Current
PJ-24V50W □NA
85-264 Vac
24 Vdc
2.10 A
Model Numbering
CC Code
PJ –
24V
PJ Series
Output Voltage Output Power
1
50W
□
N
Product Type
B - Open Frame
L - L Frame
C - Enclosed
Remote ON/OFF Function Delta Standard
N - No Remote ON/OFF
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
A
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Specifications
Input Ratings / Characteristics
Nominal Input Voltage
100-240 Vac
Input Voltage Range
85-264 Vac
Nominal Input Frequency
50-60 Hz
Input Frequency Range
47-63 Hz
Input Current
0.65 A typ. @ 100 Vac, 0.35 A typ. @ 200 Vac
Efficiency at 100% Load
84.5% typ. @ 100 Vac, 87.0% typ. @ 200 Vac
Max Inrush Current (Cold Start)
15A typ. @ 100 Vac, 30 A typ. @ 200 Vac
Power Factor Correction at 100% Load
0.98 typ. @ 100 Vac, 0.97 typ. @ 200 Vac
Leakage Current
0.1 mA @ 100 Vac, 0.2 mA @ 240 Vac
Output Ratings / Characteristics*
Nominal Output Voltage
24 Vdc
Factory Set Point Tolerance
24 Vdc ± 1% (initial set point tolerance from factory)
Output Voltage Adjustment Range
21.6-26.4 Vdc
Output Current
2.10 A (50.4 W max.)
Output Power
50.4 W
Line Regulation
< 96 mV
Load Regulation
< 150 mV
Ripple Noise (20MHz)
< 150 mVpp @ 0°C to 50°C, < 180 mVpp @ -10°C to 0°C
Start-up Time
500 ms typ. @ 100 Vac (100% load)
Hold-up Time
20 ms typ. @ 100 Vac (100% load)
Dynamic Response
(Overshoot & Undershoot O/P Voltage)
± 5% @ 0-50% load and 50-100% load
Start-up with Capacitive Loads
8,000 µF Max
*For power de-rating from 50°C to 70°C, see power de-rating on page 3
Mechanical
Case Cover / Chassis
SGCC
Dimensions
Open Frame 132 x 50 x 26.6 mm (5.20 x 1.97 x 1.05 inch)
Enclosed 162 x 60 x 36 mm (6.38 x 2.36 x 1.42 inch)
Unit Weight
Open Frame
Enclosed
0.16 kg (0.35 lb)
0.28 kg (0.62 lb)
Indicator
NA
Cooling System
Convection
Terminal
Input
Output
JST B3P5-VH (LF)(SN)
JST B4P-VH (LF)(SN)
Wire
AWG 22-18
Noise (1 Meter from power supply)
Sound Pressure Level (SPL) < 25 dBA
2
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Environment
Surrounding Air Temperature
Operating
-10°C to +70°C
Storage
-25°C to +75°C
Power De-rating
Operating Humidity
Refer to Engineering Data Fig.1.1~Fig.1.5
on Page7~9
5 to 90% RH (Non-Condensing)
Operating Altitude
0 to 5,000 Meters (16,400 ft)
Shock Test
Vibration
Non-Operating
IEC 60068-2-27, 196.1 m/S² (20G),11ms, once along X,
Y, and Z axis
Operating
IEC 60068-2-6, 10Hz to 55 Hz @ 19.6 m/S² (2G); 3 min
period, 60 min per axis for all X, Y, Z direction
Over Voltage Category
II
Pollution Degree
2
Protections
Overvoltage
27.6-33.6 V, Latch Mode
Overload / Overcurrent
> 105% of rated load current, Hiccup Mode,
Non-Latching (Auto-Recovery)
Over Temperature
Latch Mode
Short Circuit
Hiccup Mode, Non-Latching
(Auto-Recovery when the fault is removed)
Internal Fuse at L pin
T2.5 AH
Protection Against Shock
Class I with PE* connection
*PE: Primary Earth
Reliability Data
MTBF
> 200,000 hrs. as per JEITA RCR-9102B
Expected Cap Life Time
10 years (115Vac, 50% load @ 40°C)
3
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Safety Standards / Directives
Safety Entry Low Voltage
Electrical Safety
SELV (EN 60950-1)
TUV Bauart
UL/cUL recognized
CB scheme
EN 60950-1, EN 62368-1
UL 60950-1 and CSA C22.2 No. 60950-1
UL 62368-1 and CSA C22.2 No. 62368-1
(File No. E131881)
IEC 60950-1, IEC 62368-1
CE
In conformance with EMC Directive 2014/30/EU and
Low Voltage Directive 2014/35/EC
UKCA
In conformance with Electrical Equipment (Safety)
Regulations 2016 and Electromagnetic Compatibility
Regulations 2016
3.0 KVac
Galvanic Isolation
Input to Output
Input to Ground
2.0 KVac
Output to Ground
0.5 KVac
EMC
Emissions (CE & RE)
CISPR 32, EN/BS EN 55032,
Comply with FCC Title 47: Class B
Immunity
Electrostatic Discharge
IEC 61000-4-2
Level 4 Criteria A1)
Air Discharge: 15 kV
Contact Discharge: 8 kV
Radiated Field
IEC 61000-4-3
Level 3 Criteria A1)
80 MHz-1 GHz, 10 V/M with 1 kHz tone / 80% modulation
Electrical Fast Transient / Burst
IEC 61000-4-4
Level 3 Criteria A1)
2 kV
Surge
IEC 61000-4-5
Level 3 Criteria A1)
Common Mode2): 2 kV
Differential Mode3): 1 kV
Conducted
IEC 61000-4-6
Level 3 Criteria A1)
150 kHz – 80 MHz, 10 Vrms
Power Frequency Magnetic Fields
IEC 61000-4-8
Criteria A1)
Magnetic field strength 30 A/Meter
Voltage Dips and Interruptions
IEC 61000-4-11
100% dip; 1 cycle (20ms); Self Recoverable
Low Energy Pulse Test (Ring Wave)
IEC 61000-4-12
Level 3 Criteria A1)
Common Mode2): 2 kV
Differential Mode3): 1 kV
Harmonic Current Emission
IEC/EN/ BS EN 61000-3-2, Class A
Voltage Fluctuation and Flicker
IEC/EN/ BS EN 61000-3-3
1) Criteria A: Normal performance within the specification limits
2) Asymmetrical: Common mode (Line to earth)
3) Symmetrical: Differential mode (Line to line)
4
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Block Diagram
5
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Dimensions
Open Frame
L x W x D: 132 x 50 x 26.6 mm (5.20 x 1.97 x 1.05 inch)
L Frame
L x W x D: 162 x 60 x 36 mm (6.38 x 2.36 x 1.42 inch)
Item Device Description
6
Notes
1
Input Connector
2
Output Connector
•
•
3
VR
4
Chassis
•
•
Dimensions are in mm
For information on Mounting Torque, and I/O Connector and Housing, please refer
to Table 1 (Page 6).
For L Frame type: There are 6 threaded mounting holes and 5 normal mounting
holes.
For Open Frame type: There are 4 normal mounting holes.
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Enclosed
L x W x D: 162 x 60 x 36 mm (6.38 x 2.36 x 1.42 inch)
Item Device Description
Notes
1
Input Connector
2
Output Connector
•
•
3
VR
4
Cover
•
5
Chassis
Dimensions are in mm
For information on Mounting Torque, and I/O Connector and Housing, please refer
to Table 1 (Page 6).
For Enclosed type: There are 6 threaded mounting holes and 5 normal mounting
holes.
Assembly & Installation
Assembly Reference
■ Open Frame
■ L Frame / Enclosed
For safety reasons, please ensure the mounted device is kept safety distance as below at all sides from other components and equipments.
a) For Open Frame Type ≥ 8 mm (0.315 inch) from primary side and ≥ 4 mm (0.16 inch) from secondary side.
b) For with Case Type ≥ 4 mm (0.16 inch)
Please insert an insulation sheet between the system and product, if the safety distance is less than 4 mm (0.16 inch).
Use flexible cable (stranded or solid) of AWG No. 22-18. Please refer to Table 1 for the recommended Housing and Terminal.
Connector (Board Mounting)
Housing
Input (JST)
B3P5-VH(LF)(SN)
VHR-5N
Output (JST)
B4P-VH(LF)(SN)
VHR-4N
Table 1
7
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
Terminal
SVH-21T-P1.1
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Mounting Orientation
•
•
•
•
Any excessive twisting or bending may
damage the device’s PCB. Please
handle the device with care.
The device is not recommended to be
placed on low thermal conductive
surfaces. For example, plastics.
Prevent any foreign metal, particles or
conductors from entering the device
through
the
openings
during
installation. It may cause: -Electric
shock; Safety hazard; Product failure.
The power supply must be mounted
by metal screws onto a grounded
metal
surface.
It
is
highly
recommended that the Earth
terminal on the connector be
connected to the grounded metal
surface.
Engineering Data
Convection
Output Load De-rating VS Surrounding Air Temperature
■ Open Frame / L Frame
■ Enclosed
Fig.1.1 De-rating for Mounting Orientation A to F
> 50°C de-rate power by 2.5% / °C
Fig.1.2 De-rating for Mounting Orientation A to F
> 40°C de-rate power by 2.5% / °C
8
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
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TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Forced Cooling (Air Velocity > 0.7m/s)
Output Load De-rating VS Surrounding Air Temperature
■ Air Flow Direction
■ Open Frame / L Frame
■ Enclosed
Fig.1.3 De-rating for Mounting Orientation A to F
> 60°C de-rate power by 2% / °C
Fig.1.4 De-rating for Mounting Orientation A to F
> 50°C de-rate power by 2% / °C
Notes
1.
2.
3.
4.
9
Power supply components may degrade, or be damaged, when the power supply is continuously used outside the shaded region,
refer to the graphs shown above.
If the output capacity is not reduced when the surrounding air temperature is more than the upper limit temperature, the device will
run into Over Temperature Protection. When activated, the output voltage will go into latch mode until the mains is reapplied and
the surrounding air temperature drops to its normal operating temperature.
Depending on the surrounding air temperature and output load delivered by the power supply, the device housing can be very hot!
If the device has to be mounted in any other orientation, please contact info@deltapsu.com for more details.
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Output Load De-rating VS. Input Voltage
■ No output power de-rating for the input voltage
range from 90 Vac to 264 Vac
Fig.1.5 De-rating for Mounting Orientation A to F
< 90Vac de-rate power by 2% / V
Functions
Start-up Time
The time required for the output voltage to reach 90% of its final steady state set value, after the input voltage is applied.
Rise Time
The time required for the output voltage to change from 10% to 90% of its final steady state set value.
Hold-up Time
Time between the collapse of the AC input voltage, and the output falling to 95% of its steady state set value.
■ Graph illustrating the Start-up Time, Rise Time, and Hold-up Time
10
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Dynamic Response
Short Circuit Protection (Auto-Recovery)
The power supply output voltage will remain within ±5% of its
steady state value, when subjected to a dynamic load from 0 100%
of its rated current.
The power supply’s output OLP/OCP function also provides
protection against short circuits. When a short circuit is applied, the
output current will operate in “Hiccup mode”, as shown in the
illustration in the OLP/OCP section on this page. The power supply
will return to normal operation after the short circuit is removed.
Overload & Overcurrent Protections (Auto-Recovery)
The power supply’s Overload (OLP) and Overcurrent (OCP)
Protections will be activated when output current exceeds 105% of
IO (Max load). In such occurrence, the VO will start to droop and
once the power supply has reached its maximum power limit, the
protection is activated and the power supply will go into “Hiccup
mode” (Auto-Recovery). The power supply will recover once the
fault condition of the OLP and OCP is removed and IO is back within
the specifications.
Inrush Current
Inrush current is the peak, instantaneous, input current measured
and, occurs when the input voltage is first applied. For AC input
voltages, the maximum peak value of inrush current will occur
during the first half cycle of the applied AC voltage. This peak value
decreases exponentially during subsequent cycles of AC voltage.
Additionally, if the IO is 100% for a prolong period of
time (depending on the load), the Over Temperature Protection
(OTP) will be activated due to high temperature on critical
components. The power supply will then go into latch mode until
the fault is removed and the mains is reapplied.
Over Temperature Protection (Latch Mode)
Overvoltage Protection (Latch Mode)
The power supply’s overvoltage circuit will be activated when its
internal feedback circuit fails. The output voltage shall not exceed
its specifications defined on Page 3 under “Protections”. Power
supply will latch off, and require removal/re-application of input AC
voltage in order to restart. The power supply should be latch.
11
As described in load de-rating section, the power supply also has
Over Temperature Protection (OTP). In the event of a higher
operating temperature at 100% load; or, when the operating
temperature is beyond what is recommended in the de-rating
graph, the OTP circuit will be activated. When activated, power
supply will latch off, until the surrounding air temperature drops to
its normal operating temperature or the load is reduced as
recommended in the de-rating graph. Removal/re-application of
input AC voltage will then be required in order to restart.
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)
TECHNICAL DATASHEET
PJ Open Frame Power Supply
24 V 50 W 1 Phase / PJ-24V50W□NA
Others
Conformal Coating
The Protective Coating Technology
Delta Electronics Group has designed the perfect dipping technique which penetrates everywhere including under
device, and prevents leakage. The conformal coating dipping can be applied to PCBs or circuit board. The coating
preserves the performance of precision electronic primarily by preventing ionizable contaminants such as salt
from reaching circuit nodes, where the material slumps around sharp edges. This can be a problem especially in
highly conversing atmosphere.
Attention
Delta provides all information in the datasheets on an “AS IS” basis and does not offer any kind of warranty through the information for
using the product. In the event of any discrepancy between the information in the catalog and datasheets, the datasheets shall prevail
(please refer to www.DeltaPSU.com for the latest datasheets information). Delta shall have no liability of indemnification for any claim or
action arising from any error for the provided information in the datasheets. Customer shall take its responsibility for evaluation of using
the product before placing an order with Delta.
Delta reserves the right to make changes to the information described in the datasheets without notice.
Manufacturer and Authorized Representatives Information
Manufacturer
Thailand
Delta Electronics (Thailand) PCL.
909 Pattana 1 Rd., Muang, Samutprakarn, 10280 Thailand
Authorized Representatives
The Netherlands
Delta Greentech (Netherlands) B.V.
Zandsteen 15, 2132 MZ Hoofddorp, The Netherlands
12
Taiwan
Delta Electronics, Inc.
3 Tungyuan Road, Chungli Industrial Zone, Taoyuan County
32063, Taiwan
United Kingdom
Delta Electronics Europe Limited
1 Redwood Court, Peel Park Campus,
East Kilbride, Glasgow, G74 5PF, United Kingdom
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (April 2022, Rev. 08)