TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

PJB
Highlights & Features









Universal AC Input (85Vac – 264Vac)
Power Boost of 200% for 10 seconds
Low Inrush Current / Low Leakage Current
High efficiency and PF factor to conserve energy
Conformal coating on PCBA to protect against chemical anddust pollutants
Remote ON/OFF (Optional for 100W)
Versatile configuration options: Open Frame, L Frame,
Enclosed
Long life capacitors

Safety Standards

CB Certified for worldwide use

Model Number:
Unit Weight:

PJB-24V100W☐☐A
Open Frame: 0.26 kg (0.57 lb)
Enclosed: 0.42 kg (0.93 lb)
Dimensions (L x W x D): Open Frame:
155 x 62 x 33.5 mm(6.10 x 2.44 x 1.32 inch)
Enclosed:
185 x 72 x 45 mm(7.28 x 2.83 x 1.77 inch)

General Description
The PJB 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 61000-3-2. The feature built-in Power Boost of 200% for
10 seconds enables reserve power to be always available for reliable startup of loads with high inrush current, thus eliminating the needof a more expensive power supply unit at higher power rating. Metal chassis and case cover are available as options for different
installation preferences.
The PJB series is certified for EMI standards according to EN 55032 and EMS according to EN 55024. The products conform to majorinternational safety standards according to EN/UL 60950-1 standards and are fully compliant with RoHS Directive 2011/65/EU forenvironmental protection.

Model InformationPJB Open Frame Power Supply
Model Number

Input Voltage Range

Rated Output Voltage

Rated Output Current

PJB-24V100W☐☐A

85-264Vac

24Vdc

4.30A

Model Numbering
CC CodePJB –24V

PJB Series

Output Voltage Output Power

1

100W

A
Package TypeB - Open Frame
L - L Frame
C - Enclosed

Remote ON/OFF Function Delta Standard
N - No Remote ON/OFF
R - With Remote ON/OFF

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

ASpecifications
Input Ratings / Characteristics
Nominal Input Voltage

100-240Vac

Input Voltage Range

85-264Vac

Nominal Input Frequency

50-60Hz

Input Frequency Range

47-63Hz

Input Current

1.30A typ. @ 100Vac, 0.65A typ. @ 200Vac

Efficiency at 100% Load

86.5% typ. @ 100Vac, 89.0% typ. @ 200Vac

Max Inrush Current (Cold Start)

15A typ. @ 100Vac, 30A typ. @ 200Vac

Power Factor Correction at 100% Load

0.98 typ. @ 100Vac, 0.97 typ. @ 200Vac

Leakage Current

0.2mA @ 100Vac, 0.4mA @ 240Vac

Output Ratings / Characteristics*
Nominal Output Voltage

24Vdc

Factory Set Point Tolerance

24Vdc ±1% (initial set point tolerance from factory)

Output Voltage Adjustment Range

21.6-26.4Vdc

Output Current

Line Regulation

4.30A (continuously operating at 24V)
8.60A (Power Boost for 10 seconds at 24V, refer to the details
in the Functions section)
103.2W (continuously operating at 24V)
206.4W (Power Boost for 10 seconds at 24V, refer to thedetails in the Functions section)< 96mV

Load Regulation< 150mV

Ripple (20MHz)< 150mVpp @ 0°C to 50°C, < 180mVpp @ -10°C to 0°C

Ripple Noise (20MHz)< 150mVpp @ 0°C to 50°C, < 180mVpp @ -10°C to 0°C

Start-up Time

500ms typ. @ 100Vac (100% load)

Hold-up Time

20ms typ. @ 100Vac (100% load)

Dynamic Response(Overshoot & Undershoot O/P Voltage)± 5% @ 0-50% load and 50-100% load
(Slew Rate: 0.1A/µS)

Start-up with Capacitive Loads

8,000µF Max

Output Power*For power de-rating from 50°C to 70°C, see power de-rating on page 3.

MechanicalCase Chassis

SGCC

Case Cover

SGCC

Dimensions
Unit WeightOpen Frame
Enclosed
Open Frame
Enclosed

Indicator
Cooling System
Terminal

155 x 62 x 33.5 mm (6.10 x 2.44 x 1.32 inch)
185 x 72 x 45 mm (7.28 x 2.83 x 1.77 inch)
0.26 kg (0.57 lb)
0.42 kg (0.93 lb)
NAConvection

Input

JST B3P5-VH (LF)(SN)

OutputJST B8P5-VH (LF)(SN)Wire

AWG 22-18

Noise (1 Meter from power supply)Sound Pressure Level (SPL) < 25dBA

2

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

Environment
Surrounding Air Temperature

Operating-10°C to +70°C

Storage-25°C to +75°C

Power De-rating

Refer to Engineering Data Fig.1.1~Fig.1.5
on Page 8~10

Operating Humidity

5 to 95% RH (Non-Condensing)Operating Altitude

0 to 5,000 Meters (16,400 ft)

Shock Test
Vibration

Non-Operating
Operating

IEC 60068-2-27, Half Sine Wave: 50G for a duration of 11ms,
3 shocks for each 3 directions
IEC 60068-2-6, Sine Wave: 10Hz to 55Hz @ 19.6m/S² (2Gpeak); 10 min per cycle, 60 min per axis for all
X, Y, Z direction

Over Voltage Category

II

Pollution Degree

2Protections
Overvoltage

27.6-33.6V, Latch Mode

Overload / Overcurrent> 220% 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

T5AH

Protection Against ShockClass I with PE* connection*PE: Primary EarthReliability Data
MTBF

> 200,000 hrs. as per JEITA RCR-9102B

Expected Cap Life Time

10 years (115Vac, 50% load @ 40°C)

Safety Standards / Directives
Safety Entry Low Voltage
Electrical Safety

SELV (EN 60950-1)
TUV Bauart
UL/cUL recognized
CB scheme

EN 60950-1
UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E131881)
IEC 60950-1

ITE

IEC 60950-1

CE

In conformance with EMC Directive 2014/30/EU and Low
Voltage Directive 2014/35/EC

Material and Parts

RoHS Directive 2011/65/EU Compliant

Galvanic Isolation

3

Input to Output

3.0KVac

Input to Ground

2.0KVacOutput to Ground

0.5KVac

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

EMC
Emissions (CE & RE)

CISPR 32, EN 55032, FCC Title 47: Class B

Immunity
Electrostatic Discharge

IEC 61000-4-2

Level 4 Criteria A1)
Air Discharge: 15kV
Contact Discharge: 8kV

Radiated Field

IEC 61000-4-3

Level 3 Criteria A1)
80MHz-1GHz, 10V/M with 1kHz tone / 80% modulation

Electrical Fast Transient / Burst

IEC 61000-4-4

Level 3 Criteria A1)
2kV

Surge

IEC 61000-4-5

Conducted

IEC 61000-4-6

Level 3 Criteria A1)
Common Mode2): 2kV
Differential Mode3): 1kV
Level 3 Criteria A1)
150kHz-80MHz, 10Vrms

Power Frequency Magnetic Fields

IEC 61000-4-8

Criteria A1)
Magnetic field strength 30A/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): 2kV
Differential Mode3): 1kV

Harmonic Current Emission

IEC/EN 61000-3-2, Class A

Voltage Fluctuation and Flicker

IEC/EN 61000-3-31) Criteria A: Normal performance within the specification limits
2) Asymmetrical: Common mode (Line to earth)3) Symmetrical: Differential mode (Line to line)

Block Diagram

4

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

Dimensions
Open Frame
L x W x D: 155 x 62 x 33.5 mm (6.10 x 2.44 x 1.32 inch)

L FrameL x W x D: 185 x 72 x 45 mm (7.28 x 2.83 x 1.77 inch)

Item Device Description

5

Notes



1

Input Connector

2

Output Connector

3

VR



4

Remote ON/OFF (JST B2B-XH-A)

5

ChassisDimensions are in mm
For information on Mounting Torque, and I/O Connector and Housing, please referto the Instruction Manual.
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 (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

Enclosed
L x W x D: 185 x 72 x 45 mm (7.28 x 2.83 x 1.77 inch)

Item Device Description

6

Notes

1

Input Connector

2

Output Connector




3

VR



4

Remote ON/OFF (JST B2B-XH-A)

5

Cover

6

ChassisDimensions are in mm
For information on Mounting Torque, and I/O Connector and Housing, please referto the Instruction Manual.
For Enclosed type: There are 6 threaded mounting holes and 5 normal mounting
holes.

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

Assembly & Installation
Assembly ReferenceOpen Frame

L Frame / Enclosed

For safety reasons, please ensure the mounted device is kept at ≥ 4mm (0.16 inch) safety distance at all sides from other components
and equipments. Please insert an insulation sheet between the system and product, if the safety distance is less than 4mm (0.16inch).


Use flexible cable (stranded or solid) of AWG No. 22-18. Please refer to Table 1 for the recommended Housing and Terminal.
For the Remote ON/OFF function, use flexible cable (stranded or solid) of AWG No. 28-22.
Table 1

7

Connector (Board Mounting)

Housing

Input (JST)B3P5-VH(LF)(SN)

VHR-5N

Output (JST)

B8P-VH(LF)(SN)

VHR-8N

Remote ON/OFF Function(Option)B2B-XH-A(LF)(SN)

XHP-2

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

Terminal
SVH-21T-P1.1
SXH-001T-P0.6

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

Mounting Orientation






Any excessive twisting or bending may
damage the device’s PCB. Pleasehandle the device with care.
The device is not recommended to beplaced on low thermal conductive
surfaces. For example, plastics.
Prevent any foreign metal, particles or
conductors from entering the device
throughtheopenings
duringinstallation. It may cause: -Electric
shock; Safety hazard; Product failure.
The power supply must be mounted
by metal screws onto a groundedmetal
surface.
Itishighlyrecommended that the Earthterminal on the connector beconnected to the grounded metal
surface.

Engineering Data
Convection
Output Load De-rating VS Surrounding Air TemperatureOpen Frame / L Frame

Fig.1.1 De-rating for Mounting Orientation A, B
> 50°C de-rate power by 2.5% / °C
De-rating for Mounting Orientation C> 45°C de-rate power by 2% / °C
De-rating for Mounting Orientation D> 35°C de-rate power by 2% / °C
De-rating for Mounting Orientation E, F
> 40°C de-rate power by 2% / °C

8Enclosed

Fig.1.2 De-rating for Mounting Orientation A, B
> 40°C de-rate power by 2.5% / °C
De-rating for Mounting Orientation C> 35°C de-rate power by 2% / °C
De-rating for Mounting Orientation D, E
> 30°C de-rate power by 2% / °C
De-rating for Mounting Orientation F> 35°C de-rate power by 2.4% / °C

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

Forced Cooling (Air Velocity > 0.7m/s)
Output Load De-rating VS Surrounding Air Temperature

Air Flow Direction

Open Frame / L Frame

Fig.1.3 De-rating for Mounting Orientation A to F
> 60°C de-rate power by 2% / °C

Enclosed

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 bouncing mode and will recover when thesurrounding air temperature is lowered or the load is reduced as far as necessary to keep the device in working condition.
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 (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

Output Load De-rating VS. Input Voltage
No output power de-rating for the input voltage
range from 90Vac to 264Vac

Fig.1.5 De-rating for Mounting Orientation A to F
< 90Vac de-rate power by 2% / V

Functional Manual
Remote ON/OFF Function
You can remotely control the power supply unit to turn
ON/OFF by using an external DC source. Follow the DC
power source voltage and current limiting defined in thetable below.

Voltage Between
RC+ and RC- (V)

Built-in Resistor Ri (ohm)
1kInput Current (mA)

Output ON

Output OFF

5-12.50-0.5

20 Max

Notes
1. Remote ON/OFF circuits are isolated from input, output and PE.
2. Please check if the polarity of the wire connector is the same as the external DC source. If not, the power would not turn on and theinternal components may be damaged.
3. You do not need an external resistance RO for current limit while the output voltage of external DC source is within the range of 512.5V. If the output voltage exceeds 12.5V, please use the following equation for the value of current limit resistance RO.

𝑅𝑂 =

10

𝑉𝑐𝑐 − (3.5 + 0.006𝑅𝑖 )0.006

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

FunctionsStart-up TimeThe time required for the output voltage to reach 90% of its final steady state set value, after the input voltage is applied.

Rise TimeThe time required for the output voltage to change from 10% to 90% of its final steady state set value.

Hold-up TimeTime 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

Dynamic Response
The power supply output voltage will remain within ±5% of its steady state value, when subjected to a dynamic load 0% to 100% of its
rated current.

11

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

Power Boost
Power Boost is the reserve power available
constantly that allows reliable startup to
support sudden and short spike of loads withhigh inrush current typically during turn on toremove the need of more expensive higher
rated power supply unit. After the output hasreached its steady state set value, the power
supply can support surge loads with a higher
short-term power demand up to 200% of
maximum rated load (IO Max), for a
maximum duration of 10 seconds. The
Power Boost is also available to repeatedly
basis with according to the condition of an
average (R.M.S) output power shall not
exceed continuous operating condition orrefer to duty cycle calculation below.
Fig. 2

𝐷𝑢𝑡𝑦 𝑐𝑦𝑐𝑙𝑒 (%) =Duty Cycle Calculation𝑇𝑃; (𝑇𝑃 ≤ 10 sec)
𝑇𝑜𝑡𝑎𝑙 𝑇𝑖𝑚𝑒

𝐴𝑣𝑒𝑟𝑎𝑔𝑒 𝑂𝑢𝑡𝑝𝑢𝑡 𝑃𝑜𝑤𝑒𝑟 (𝑃𝐴𝑣𝑔 ) =(𝑃𝑜𝑤𝑒𝑟 𝐵𝑜𝑜𝑠𝑡 × 𝑇𝑃 ) + (𝑁𝑜𝑛-𝑃𝑒𝑎𝑘 𝑃𝑜𝑤𝑒𝑟 × 𝑇𝑁 )𝑇𝑜𝑡𝑎𝑙 𝑇𝑖𝑚𝑒OR
𝑁𝑜𝑛-𝑃𝑒𝑎𝑘 𝑃𝑜𝑤𝑒𝑟 =(𝑃𝐴𝑣𝑔 × 𝑇𝑜𝑡𝑎𝑙 𝑇𝑖𝑚𝑒) − (𝑃𝑜𝑤𝑒𝑟 𝐵𝑜𝑜𝑠𝑡 × 𝑇𝑃 )𝑇𝑁

An example of Power Boost and Average Output PowerPower Boost

Peak Power(WP)

Power Boost
Duration (TP)Duty Cycle

Non-PeakPower (WN)

Non-Peak Power
Duration (TN)Total Time
(T)

200%

206W

10 sec15%

85W

57 sec67 sec

200%

206W

5 sec

15%

85W

28 sec33 sec160%

165W

10 sec40%

62W

15 sec25 sec

160%

165W

5 sec

40%

62W

7.5 sec

12.5 sec

It is not recommended to prolong the duration of Power Boost to be longer than the specified duty cycle calculation, this may cause
damage to the PSU.

12

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

Inrush Current

Short Circuit Protection (Auto-Recovery)

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.

The power supply’s output OLP/OCP function also provides
protection against short circuits. When a short circuit is applied, theoutput current will operate in “Hiccup mode”, as shown in theillustration 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 220% of
IO (Max load). In such occurrence, the VO will start to droop andonce the power supply has reached its maximum power limit, theprotection is activated and the power supply will go into “Hiccupmode” (Auto-Recovery). The power supply will recover once thefault condition of the OLP and OCP is removed and IO is back within
the specifications.

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 as described in “Protections” section. Powersupply will latch, and require removal/re-application of input AC
voltage in order to restart.
The power supply should be latch.

It is not recommended to prolong the duration of I O when it is<220% but >100%, since it may cause damage to the PSU.

Over Temperature Protection (Latch Mode)
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 toits normal operating temperature or the load is reduced asrecommended in the de-rating graph. Removal/re-application of
input AC voltage will then be required in order to restart.

13

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)

TECHNICAL DATASHEETPJB Open Frame Power Supply
24V 100W 1 Phase / PJB-24V100W

A

OthersDelta RoHS Compliant
Restriction of the usage of hazardous substances
The European directive 2011/65/EU limits the maximum impurity level of homogeneous materials such as lead,
mercury, cadmium, chrome, polybrominated flame retardants PBB and PBDE for the use in electrical andelectronic equipment. RoHS is the abbreviation for “Restriction of the use of certain hazardous substances inelectrical and electronic equipment”.
This product conforms to this standard.

Conformal Coating
The Protective Coating Technology
Delta Electronics Group has designed the perfect dipping technique which penetrates everywhere including underdevice, and prevents leakage. The conformal coating dipping can be applied to PCBs or circuit board. The coatingpreserves 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 inhighly conversing atmosphere.

PFC – Norm EN 61000-3-2
Line Current Harmonic content
Typically, the input current waveform is not sinusodial due to the periodical peak charging of the input capacitor.
In industrial environment, complying with EN 61000-3-2 is only necessary under special conditions. Complying tothis standard can have some technical drawbacks, such as lower efficiency as well as some commercial aspects
such as higher purchasing costs. Frequently, the user does not profit from fulfilling this standard, therefore, it isimportant to know whether it is mandatory to meet this standard for a specific application.

Attention
Delta provides all information in the datasheets on an “AS IS” basis and does not offer any kind of warranty through the information forusing 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.

14

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2018, Rev. 02)