TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ

Highlights & Features
Universal AC input voltage range
Built-in constant current circuit for reactive loads
Up to 90% efficiency
Full power from -10°C to +50°C @ 230 Vac with -30°C Cold Start
Compliance to SEMI F47 @ 200 Vac
Limited Power Source (LPS) certified (DRL-24V75W1AZ &DRL-48V75W1AZ)

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Safety Standards

CB Certified for worldwide use

Model Number:
DRL-V75W1AZ
Unit Weight:
0.22 kg (0.49 lb)
Dimensions (H x W x D): 123.6 x 27 x 102 mm(4.87 x 1.06 x 4.02 inch)

General Description
Delta’s LYTE DIN rail power supply series is designed for price sensitive users who require basic yet reliable power output for generalindustrial applications. The convection-cooled LYTE series operates between 20°C to +70°C, providing 100% output power from -10°C
to +50°C at 230Vac. The overcurrent protection is designed to operate in constant current mode, which makes the LYTE series suitablefor inductive and capacitive load applications. The product is certified according to safety standards IEC 60950-1 & IEC/EN/UL 62368-1.
Electromagnetic radiated and conducted emissions are certified according to EN 55032, Class B; and, the product is RoHS compliant forenvironmental protection.

Model Information
LYTE DIN Rail Power Supply
Model Number

Input Voltage Range

DRL-12V75W1AZ
DRL-24V75W1AZ

85-264 Vac (120-375 Vdc)

DRL-48V75W1AZ

Rated Output Voltage

Rated Output Current

12 Vdc6.25 A

24 Vdc3.125 A

48 Vdc1.57 A

Model NumberingDR

L–

DIN Rail

Product Type
Output Voltage
L – LYTE Series 12 – 12 V
24 – 24 V
48 – 48 V

1

V

75W

1

Output Power Single Phase

A

Z

Delta
Standard

Z – Plastic case without DC OK
relay contact & without coating

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
Specifications
Model Number

DRL-12V75W1AZ

DRL-24V75W1AZ

DRL-48V75W1AZ

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 HzDC input Voltage Range*1

120-375 Vdc

Input Current

1.4 A typ. @ 115 Vac, 0.9 A typ. @ 230 Vac

Efficiency at 100% Load

87.5% typ. @ 230 Vac

Max Inrush Current (Cold Start)

50 A typ. @ 230 Vac

Leakage Current< 1 mA @ 240 Vac

89% typ. @ 230 Vac

90% typ. @ 230 Vac*1 Power supply can operate at DC input voltage, please connect +pole to L, -pole to N and PE terminal to an earth wire or to the machine ground.

Output Ratings / Characteristics*2
Nominal Output Voltage

12 Vdc24 Vdc48 VdcFactory Set Point Tolerance

12 Vdc ± 2%

24 Vdc ± 2%

48 Vdc ± 1%

Output Voltage Adjustment Range

10.8-13.2 Vdc

21.6-26 Vdc

43.2-52.8 Vdc

Output Current

6.2 5A

3.125 A

1.57 A

Output Power

75 W

75 W

75.36 W

Line Regulation< 0.5% (@ 85-264 Vac, 100% load)

Load Regulation< 1% (0-100% load)

PARD (20 MHz)< 120 mVpp @ > -10°C to +70°C < 120 mVpp @ > -10°C to +70°C < 240 mVpp @ > -10°C to +70°C< 360 mVpp @ ≤ -10°C to -30°C < 360 mVpp @ ≤ -10°C to -30°C < 480 mVpp @ ≤ -10°C to -30°C

Rise Time

30 ms typ. @ nominal input (100% load)

Start-up Time

1200 ms typ. @ 115 Vac (100% load)
1000 ms typ. @ 230 Vac (100% load)
16 ms typ. @ 115 Vac (100% load)
60 ms typ. @ 230 Vac (100% load)*3

Hold-up Time
Dynamic Response(Overshoot & Undershoot O/P Voltage)
Start-up with Capacitive Loads± 10% @ 115 Vac & 230 Vac input, 0-50%, 50-100% load
(Slew Rate: 2.5 A/μS, 50% duty cycle @ 100 Hz & 1 kHz)5,000 µF Max
5,000 µF Max

4,000 µF Max*2 For power de-rating from -10°C to -20°C, and 40°C to 70°C @ 115 Vac & 50°C to 70°C @ 230 Vac, and Vin < 100 Vac, see power de-rating on page 3.
*3 PARD is measured with an AC coupling mode, 5cm wires, and in parallel to end terminal with 0.1 μF ceramic capacitor & 47 μF electrolytic capacitor. PSU need to burn inaround 5 minutes when AMB ≤ 0°C

2

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
DRL-12V75W1AZ

Model Number

DRL-24V75W1AZ

DRL-48V75W1AZ

MechanicalCase Cover / Chassis

Plastic

Dimensions (H x W x D)

123.6 x 27 x 102 mm (4.87 x 1.06 x 4.02 inch)

Unit Weight

0.22 kg (0.49 lb)

Indicator

Green LED (DC OK)

Cooling System

Convection

Terminal

Input
OutputWire

3 Pins (Rated 300 V / 16 A)
4 Pins (Rated 300 V / 16 A)

Input

AWG 18-12

OutputAWG 22-12

Mounting RailStandard TS35 DIN Rail in accordance with EN 60715

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

Environment
Surrounding Air
Temperature

OperatingPower De-rating

Temperature

Storage

Input
Voltage-20°C to +70°C (-30°C Cold Start)-40°C to +85°C-10°C to -20°C de-rate power by 1% / °C
> 40°C de-rate power by 1.67% / °C @ 115 Vac> 50°C de-rate power by 2.5% / °C @ 230 Vac< 100 Vac de-rate power by 1.33% / Vac

Operating Humidity

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

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

Vibration

NonOperating
Operating

IEC 60068-2-27, Half Sine Wave: 50 G for duration of 11 ms; 3 times per direction,
9 times in total
IEC 60068-2-27, Half Sine Wave: 10 G for duration of 11 ms; 1 time in X axis

NonOperating

IEC 60068-2-6, Random: 5 Hz to 500 Hz; 2.09 Grms;
20 min per axis for all X, Y, Z directions

Operating

IEC 60068-2-6, Sine Wave: 10 Hz to 500 Hz @ 19.6 m/s² (2 G peak);displacement of 0.3 5mm; 10 min per cycle, 60 min for X direction

Over Voltage Category

II

Pollution Degree23

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
DRL-12V75W1AZ

Model Number

DRL-24V75W1AZ

DRL-48V75W1AZ

Protections
Overvoltage< 18 V, SELV Output,
Latch Mode

< 33.6 V, SELV Output,
Latch Mode

< 62.4 V, SELV Output,
Latch Mode

Overload / Overcurrent

105 - 133% of rated load
current, Constant current
limit, Auto-recovery
Latch Mode

105 - 133% of rated load
current, Constant current
limit, Auto-recovery

105 - 133% of rated load
current, Constant current
limit, Auto-recovery

Over Temperature
Short Circuit

Hiccup Mode, Non-Latching(Auto-Recovery when the fault is removed)

Internal Fuse at L pin

F5AH

Degree of Protection

IP20

Protection Against ShockClass I with PE*4 connection*4 PE: Primary EarthReliability Data
MTBF

Telcordia
SR-332

Expected Cap Life Time

> 700,000 hrs

I/P: 100 Vac, O/P: 100% load, Ta: 25°C

10 years (115 Vac & 230 Vac, 50% load @ 40°C)

Safety Standards / Directives
Electrical Safety

Limited Power Source
(LPS)
CE

CB scheme
TUV Bauart
UL/cUL andcTUVusBSMI
EAC
KCCB scheme

4

CNS14336-1
TP TC 004/2011
K 60950-1
IEC 62368-1 (For DRL-24V75W1AZ & DRL-48V75W1AZ)
In conformance with EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU

UKCA
Galvanic Isolation

IEC 62368-1, IEC 60950-1, IEC 61010-1
EN 62368-1
UL 62368-1

Input toOutputIn conformance with Electrical Equipment (Safety) Regulations 2016 and Electromagnetic
Compatibility Regulations 2016
3.0 KVac

Input toGround

2.0 KVac

Output to
Ground

0.5 KVac

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
Model Number

DRL-12V75W1AZ

DRL-24V75W1AZ

DRL-48V75W1AZ

EMC
Emissions (CE & RE)

CISPR 32, EN/BS EN 55032, EN/BS EN 55011, AS/NZS CISPR32: Class B;
GB9254.1
Compliance with: EN/BS EN 61000-6-3, EN/BS EN 61000-6-4
EN/BS EN 61204-3

Component Power
Supply for General Use
Immunity

EN/BS EN 55035, EN/BS EN 55024
Compliance with: EN/BS EN 61000-6-1, EN/BS EN 61000-6-2

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 2 Criteria A1)
80 MHz – 1 GHz, 3 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

Conducted

IEC 61000-4-6

Level 4 Criteria A1)
Common Mode3): 4 kV
Differential Mode4): 2 kVLevel 2 Criteria A1)
150 kHz – 80 MHz, 3 Vrms

Power Frequency
Magnetic Fields

IEC 61000-4-8

Level 2 Criteria A1)
3 A/m

Voltage Dips andInterruptions

IEC 61000-4-11

0% of 115 Vac, 12 ms
40% of 115 Vac, 200 ms
70% of 115 Vac, 500 ms
0% of 115 Vac, 5000 ms
0% of 240 Vac, 12 ms
40% of 240 Vac, 200 ms
70% of 240 Vac, 500 ms
0% of 240 Vac, 5000 ms

Criteria A1)
Criteria B2)
Criteria A1)
Criteria B2)
Criteria A1)
Criteria A1)
Criteria A1)
Criteria B2)

Harmonic Current
Emission

IEC/EN/BS EN 61000-3-2, Class A; GB17625.1

Voltage Fluctuation andFlicker

IEC/EN/BS EN 61000-3-3

Voltage Sag Immunity
SEMI F47 – 0706

80% of 200 Vac
70% of 200 Vac
50% of 200 Vac

160 Vac, 1000 ms
140 Vac, 500 ms
100 Vac, 200 ms

Criteria A1)
Criteria A1)
Criteria A1)

1) Criteria A: Normal performance within the specification limits
2) Criteria B: Temporary degradation or loss of function which is self-recoverable
3) Asymmetrical: Common mode (Line to earth)4) Symmetrical: Differential mode (Line to line)5

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
Block Diagram
DRL-☐V75W1AZ

6All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
Device Description

1)
2)
3)
4)
5)

Input terminal block connector
Output terminal block connector
DC voltage adjustment potentiometer
DC OK LED (Green)
Universal mounting rail system

Dimensions
H x W x D: 123.6 x 27 x 102 mm (4.87 x 1.06 x 4.02 inch)7

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
Engineering Data
Note

Percentage of Max Load (%)

Output Load De-rating VS Surrounding Air Temperature
110
100
90
80
70
60
50
40
30
20
10
0

1.

2.

3.
-20

-10

0
10
20
30
40
50
Surrounding Air Temperature (°C)
230 VacFig. 160

70- - - 115 Vac

4.

De-rating for Vertical Mounting Orientation-10°C to -20°C de-rate power by 1% / °C
> 40°C de-rate power by 1.67% / °C @ 115 Vac> 50°C de-rate power by 2.5% / °C @ 230 Vac

5.

Power supply components may degrade, or
be damaged, when the power supply is
continuously used outside the shaded region,refer to the graph shown in Fig. 1.
If the output capacity is not reduced when thesurrounding air temperature > 40°C (115 Vac)or > 50°C (230 Vac), the device will run intoOver
Temperature
Protection.
When
activated, power supply will latch off, until thesurrounding air temperature is lowered or theload is reduced as far as necessary to keep
the device in working condition, and require
removal/re-application of input AC voltage inorder to restart.
In order for the device to function in themanner intended, it is also necessary to keepa safety distance as recommended in thesafety instructions while the device is inoperation.
Depending on the surrounding air temperatureand output load delivered by the power
supply, the device can be very hot!
If the device has to be mounted in any otherorientation, please contact info@deltapsu.com
for more details.

Output Load De-rating VS Input Voltage
No output power de-rating for the input
voltage from 100 Vac to 264 Vac

Load (%)

110
100
90
80
70
60
50
40
30
20
10
0

8

85

100

120

140
160
180
Input Voltage (Vac)

200

240

264

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
Assembly & Installation
The power supply unit (PSU) can be mounted on 35 mm DIN rails in accordance with EN 60715. The device should be installed with
input terminal block at the bottom.
Each device is delivered ready to install.

Mounting

Dismounting

Fig. 2.1 Mounting

Fig. 2.2 Dismounting

Snap on the DIN rail as shown in Fig. 2.1:
1. Pull the unit’s DIN rail latch OUT.
2. Tilt the unit slightly upwards, hook the top end onto the DIN
rail and push downwards until stopped.
3. Position the bottom front end against the DIN rail.
4. Push the unit’s latch DIN rail IN to lock.

To uninstall,
1. Pull the unit’s DIN rail latch OUT.
2. Tilt the bottom part of the unit out.
3. Push the unit up and pull out from the DIN rail.

In accordance to EN 60950 / UL 60950 and EN 62368 / UL 62368, flexible cables require ferrules.
Use appropriate copper cables designed to sustain operating temperature of at least 60°C / 75°C or more to fulfill UL requirements.

Safety Instructions
Vertical Mounting
•
•
•
•
•
•
•

9

ALWAYS switch mains of input power OFF before connecting and disconnecting the input
voltage to the unit. If mains are not turned OFF, there is risk of explosion / severe damage.
To guarantee sufficient convection cooling, keep a distance of 50 mm (1.96 inch) aboveand below the device as well as a lateral distance of 10 mm (0.39 inch) to other units.
Note that the enclosure of the device can become very hot depending on the surrounding air
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 insert any objects into the unit.
Hazardous voltages may be present for up to 5 minutes after the input mains voltage is
disconnected. Do not touch the unit during this time.
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.

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
FunctionsGraph illustrating the Start-up Time, Rise Time, and Hold-up Time

Start-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.

Inrush Current

Dynamic Response

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 output voltage will remains within ±10% of its
steady state value, when subjected to a dynamic load from 0% to
50% and 50% to 100% of its rated current.

10

50% duty cycle / 5 Hz to 100 Hz

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
Overload & Overcurrent Protections (Continuous Current)

Overvoltage Protection (Latch Mode)

The power supply’s Overload (OLP) and Overcurrent (OCP)
Protections will be activated when output current is 105~133% of
IO (Max load). Upon such an occurrence, the VO (output voltage)
will start to droop. Once the power supply has reached its
maximum power limit, the protection will be activated; and, thepower supply will operate in continuous current. The power supply
will recover once the cause of OLP or OCP is removed, and IO(output current) is back within the specified range.

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 off, and require removal/re-application of input AC
voltage in order to restart.
The power supply should be latch.

Over Temperature Protection (Latch Mode)

Short Circuit Protection (Auto-Recovery)
The power supply’s output Short Circuit Protection function also
provides protection against short circuits. When a short circuit isapplied, the output current will operate in “Hiccup mode”. The
power supply will return to normal operation after the short circuit
is removed.

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 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.

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (March 2022, Rev. 06)

TECHNICAL DATASHEETLYTE DIN Rail Power Supply
DRL-75W series / DRL-V75W1AZ
OthersAttention
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.

Manufacturer and Authorized Representatives Information
Manufacturer
Thailand
Delta Electronics (Thailand) PCL.
909 Pattana 1 Rd., Muang, Samutprakarn, 10280 Thailand

TaiwanDelta Electronics, Inc.
3 Tungyuan Road, Chungli Industrial Zone, Taoyuan County
32063, Taiwan

Authorized Representatives
The Netherlands
Delta Greentech (Netherlands) B.V.
Zandsteen 15, 2132 MZ Hoofddorp, The Netherlands

12

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 (March 2022, Rev. 06)