Delta LYTE DRL-24V240W1A Series Instruction Manual

TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
1
Highlights & Features
•Universal AC input voltage
•Built-in constant current circuit for reactive loads
•Up to 90.0% efficiency
•Full power from -20°C to +50°C operation at 230 Vac
@ 5,000 meters or 16,400 feet altitude
•Built-in DC OK relay contact option available
•Compliance to SEMI F47 @ 200 Vac
•Conformal coating on PCBAs to protect against common
dust and chemical pollutants
Safety Standards
CB Certified for worldwide use
Model Number: DRL-24V240W1A
Unit Weight: 0.80 kg (1.76 lb)
Dimensions (H x W x D): 123.6 x 60 x 117.6 mm
(4.87 x 2.36 x 4.63 inch)
General Description
Delta’s LYTE DIN rail power supply series is designed for cost sensitive users who need to fulfill essential features needed for many
general industrial applications, without compromising on quality and reliability. The convection-cooled LYTE series will operate
between -20°C to +70°C, with full rated power available from -10°C to +50°C at 230 Vac. The overcurrent protection is designed to
operate in constant current mode, which makes the LYTE series suitable for inductive and capacitive load applications. The product is
certified according to safety standards IEC/EN/UL 60950-1 & IEC/EN/UL 62368-1 for Information Technology Equipment (ITE) and
UL 508 for Industrial Control Equipment (ICE). Electromagnetic radiated and conducted emissions are compliant to EN 55032, Class B;
and, the product is RoHS compliant for environmental protection.
Model Information
LYTE DIN Rail Power Supply
Model Number Input Voltage Range Rated Output
V oltage Rated Output Current
DRL-24V240W1A85-264 Vac (120-375 Vdc) 24 Vdc 10.0 A
Model Numbering
DR L – 24V
240W
1
A

DIN Rail Product Type
L – LYTE Series
Output Voltage Output Power Single Phase Delta
Standard
A – Without DC OK Contact
S – With DC OK Relay Contact
*This picture is for reference to DRL-24V240W series only.
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
2
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
DC Input Voltage Range* 120-375 Vdc
Input Current 2.8 A typ. @ 115 Vac, 1.4 A typ. @ 230 Vac
Efficiency at 100% Load 88.0% typ. @ 115 Vac, 90.0% typ. @ 230 Vac
Max Power Dissipation 0% load 4.62 W @ 115 Vac
2.14 W @ 230 Vac
100% load 31.53 W @ 115 Vac
25.44 W @ 230 Vac
Max Inrush Current (Cold Start) 20 A typ. @ 115 Vac, 40 A typ. @ 230 Vac
Power Factor at 100% Load > 0.95 @ 115 Vac & 230 Vac
Leakage Current < 1 mA @ 264 Vac
*Fulfills test conditions for DC input. Safety approval for DC input can be obtained upon request.
Output Ratings / Characteristics**
Nominal Output Voltage 24 Vdc
Factory Set Point Tolerance 24 Vdc ± 2%
Output Voltage Adjustment Range 22-28 Vdc
Output Current 10.0 A (240 W max.)
Output Power 240 W
Line Regulation < 0.5% (@ 85-264 Vac, 100% load)
Load Regulation < 1.0% (0-100% load) @ > -10°C to +70°C
< 1.5% (0-100% load) @ ≤ -10°C to -20°C
PARD*** (20 MHz) < 120 mVpp @ 0°C to +70°C
< 240 mVpp @ < 0°C to -10°C
< 360 mVpp @ < -10°C to -20°C
Rise Time 100 ms typ. @ nominal input (100% load)
Start-up Time 1,000 ms typ. @ 115 Vac & 230 Vac (100% load)
Hold-up Time 10 ms typ. @ 115 Vac (100% load)
16 ms typ. @ 230 Vac (100% load)
Dynamic Response
(Overshoot & Undershoot O/P Voltage)
± 10% (2400 mVpp) @ 85-264 Vac input, 0-100% load
(Slew Rate: 0.1 A/μs)
Start-up with Capacitive Loads 8,000 µF Max
Functional DC OK Relay Contact 30 V / 1 A
The relay contact are normally “ON” (closed) when the output
(Vout) is greater than 90% of its rated value.
**For power de-rating from 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.
***PARD is measured with an AC coupling mode, 5 cm wires, and in parallel with 0.1 μF ceramic capacitor & 47 μF electrolytic capacitor.
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
3
Mechanical
Case Cover / Chassis SGCC / Aluminium
Dimensions (H x W x D) 123.6 x 60 x 117.6 mm (4.87 x 2.36 x 4.63 inch)
Unit Weight 0.80 kg (1.76 lb)
Indicator Green LED (DC OK)
Cooling System Convection
Terminal Input 3 Pins (Rated 600V/35A)
Output DRL-24V240W1AA: 4 Pins (Rated 300 V / 28 A)
Output / Signal DRL-24V240W1AS: 6 Pins (Rated 300 V / 28 A)
Wire Input AWG 16-12
Output AWG 16-12
Signal AWG 16-12
Mounting Rail Standard TS35 DIN Rail in accordance with EN 60715
Noise (1 Meter from power supply) Sound Pressure Level (SPL) < 25 dBA
Environment
Surrounding Air Temperature Operating -20°C to +70°C
Storage -40°C to +85°C
Power De-rating Temperature > 40°C de-rate power by 1.67% / °C @ 115 Vac
> 50°C de-rate power by 2.5% / °C @ 230 Vac
Input Voltage < 100 Vac de-rate power by 1% / Vac
Operating Humidity 5 to 95% RH (Non-Condensing)
Operating Altitude 0 to 5,000 Meters (16,400 ft.)
Shock Test Non-Operating IEC 60068-2-27, 27, Half Sine Wave: 50 G for duration of
11 ms; 3 times per direction, 9 times in total
Operating IEC 60068-2-27, 27, Half Sine Wave: 10 G for duration of
11 ms; 1 time for X direction
Vibration Non-Operating 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 0.35
mm; 10 min per cycle, 60 min
for X direction
Pollution Degree 2
Protections
Overvoltage 28.8 V – 35.2 V, SELV Output, Latch Mode
Overload / Overcurrent 105-150% of rated load current, Continuous current
Over Temperature Latch Mode
Short Circuit Hiccup Mode, Non-Latching
(Auto-Recovery when the fault is removed)
Internal Fuse at L pin T 6.3 A H / 250 V
Degree of Protection IP20
Protection Against Shock Class I with PE* connection
*PE: Primary Earth
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
4
Reliability Data
MTBF Telcordia SR-332 > 700,000 hrs I/P: 100 Vac, O/P: 100% load, Ta: 25°C
Expected Cap Life Time 10 years (115 Vac & 230 Vac, 50% load @ 40°C)
Safety Standards / Directives
Safety Entry Low Voltage SELV
Electrical Safety TUV Bauart
EN 60950-1, EN 62368-1
UL/cUL recognized UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E131881)
UL 62368-1 and CSA C22.2 No. 62368-1 (File No. E131881)
CB scheme IEC 60950-1, IEC 62368-1
Industrial Control Equipment UL/cUL listed UL 508 and CSA C22.2 No. 107.1-01 (File No. E338991)
CE In conformance with EMC Directive 2014/30/EU and
Low Voltage Directive 2014/35/EU
UKCA
In conformance with Electrical Equipment (Safety) Regulations
2016 and Electromagnetic Compatibility Regulations 2016
Galvanic Isolation Input to Output 3.0 KVac
Input to Ground 2.0 KVac
Output to Ground 0.5 KVac
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
5
EMC
Emissions (CE & RE) Generic Standards:
EN/BS EN 61000-6-3, EN/BS EN 61000-6-4
CISPR 32, EN/BS EN 55032, EN/BS EN 55011, FCC Title 47:
Class B; GB9254.1
Component Power Supply for General Use EN/BS EN 61204-3
Immunity Generic Standards: EN/BS EN 61000-6-1,
EN/BS EN 61000-6-2, EN/BS EN 55024
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
1.4 GHz – 2 GHz, 3 V/M with 1 kHz tone / 80% modulation
2 GHz – 2.7 GHz, 1 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 4 Criteria A1)
Common Mode3): 4 kV
Differential Mode
4)
: 2 kV
Conducted IEC 61000-4-6 Level 3 Criteria A1)
150 kHz – 80 MHz, 10 Vrms
Power Frequency Magnetic Fields IEC 61000-4-8 Level 4 Criteria A1)
30 A/m
Voltage Dips and Interruptions IEC 61000-4-11 0% of 100 Vac, 20 ms
40% of 100 Vac, 200 ms
70% of 100 Vac, 50 0ms
0% of 100 Vac, 5,000 ms
0% of 240 Vac, 20 ms
40% of 240 Vac, 200 ms
70% of 240 Vac, 500 ms
0% of 240 Vac, 5,000 ms
Criteria A1)
Criteria A1)
Criteria B2)
Criteria B2)
Criteria A1)
Criteria A1)
Criteria A1)
Criteria B2)
Low Energy Pulse Test (Ring Wave) IEC 61000-4-12 Level 3 Criteria A1)
Common Mode3): 2 kV
Differential Mode
4)
: 1 kV
Harmonic Current Emission IEC/EN/BS EN 61000-3-2, Class A; GB17625.1
Voltage Fluctuation and Flicker 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, 1,000 ms
140 Vac, 500 ms
100 Vac, 200 ms
Criteria A1)
Criteria A1)
Criteria A
1)
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)
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
6
Block Diagram
DRL-24V240W1AA
DRL-24V240W1AS
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
7
Device Description
1) Input terminal block connector
2) Output terminal block connector
3) DC OK relay contact (for DRL-24V240W1AS only)
4) DC voltage adjustment potentiometer
5) DC OK LED (Green)
6) Universal mounting rail system
Dimensions
H x W x D: 123.6 x 60 x 117.6 mm (4.87 x 2.36 x 4.63 inch)
DRL-24V240W1AA
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
8
H x W x D: 123.6 x 60 x 117.6 mm (4.87 x 2.36 x 4.63 inch)
DRL-24V240W1AS
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
9
Engineering Data
Output Load De-rating VS Surrounding Air Temperature
Output Load De-rating VS Input Voltage
Note
1. 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.
2. If the output capacity is not reduced when the
surrounding air temperature
exceeds its
specification as defined on Page 3 under
“Environment”, the device will run into Over
Temperature Protection. When activated,
power supply will latch off, until the
surrounding air temperature is lowered or the
load is reduced as far as necessary to keep
the device in working condition, and require
removal/re-application of input AC voltage in
order to restart.
3. In order for the device to function in the
manner intended, it is also necessary to keep
a safety distance as recommended in the
safety instructions while the device is in
operation.
4.
Depending on the surrounding air
temperature and output load delivered by the
power supply, the device can be very hot!
5. If the device has to be mounted in any other
orientation, please contact [e-mail]
for more details.
No output power de-rating for the input
voltage from 100 Vac to 264 Vac
Fig. 1 De-rating for Vertical Mounting Orientation
> 40°C de-rate power by 1.67% / °C @ 115Vac (Test at 115 Vac condition)
> 50°C de-rate power by 2.5% / °C @ 230Vac (Test at 230 Vac condition)
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
10
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
Snap on the DIN rail as shown in Fig. 2.1:
1. Tilt the unit upwards and insert 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.
Fig. 2.2 Dismounting
To uninstall, pull or slide down the latch with screw driver as
shown in Fig. 2.2. Then slide the power supply unit (PSU) in the
opposite direction, release the latch and pull out the power supply
unit (PSU) from the 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.
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
11
Safety Instructions
Vertical Mounting
•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 (1.97 inch) above and 18 cm (7.09 inch)
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.
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
12
Functions
Graph illustrating the Start-up Time, Rise Time, and Hold-up Time
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.
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.
Dynamic Response
The power supply output voltage will remains within ±10% of its
steady state value, when subjected to a dynamic load from 0% to
100% of its rated current.
50% duty cycle / 5 Hz to 100 Hz
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
13
Overload & Overcurrent Protections (Continuous Current)
The power supply’s Overload (OLP) and Overcurrent (OCP)
Protections will be activated when output current is 105~150% 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, the
power 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.
Short Circuit Protection (Auto-Recovery)
The power supply’s output Short Circuit Protection function also
provides protection against short circuits. When a short circuit is
applied, the output current will operate in “Hiccup mode”. The
power supply will return to normal operation after the short circuit
is removed.
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. Power
supply 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)
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.
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
14
Operating Mode
Redundant Operation
In order to ensure proper redundant operation for the power
supply units (PSUs), the output voltage difference between
the two units must be kept at 0.45~0.50 V for these 24 V
supplies. Follow simple steps given below to set them up for
the redundant operation:
Step 1.
Measure output voltage of PSU 1 and PSU 2. If PSU 1 is the
master unit, then VOof PSU 1 must be higher than PSU 2.
Step 2.
Connect the power supply units PSU 1 and PSU 2 to Vin 1 &
Vin 2, respectively, of the DRR-20N (or 20 A) module shown
on the right of above diagram.
Step 3.
Connect the system load to Vout. Please note that output
voltage Vout from DRR module will be = VO(output voltage of
power supply) – Vdrop* (in DRR module).
*Vdrop will vary from 0.60 V to 0.90 V (Typical 0.65 V) depending on the load
current and surrounding air temperature.
**The Signal GND in the DRR module is for the built-in LED and DC OK signals. The
Output GND terminals from the two PSU’s do not need to be connected to the Signal
GND terminal.
Fig. 3 Redundant Operation Connection Diagram
Parallel Operation
The power supply units (PSUs) can also be used for parallel
operation in order to increase the output power. The
difference in output voltage between the two units must be
kept to within 25 mV of each other. This difference must be
verified with the same output load connected independently
to each unit.
Parameters such as EMI, inrush current, leakage current,
PARD, start up time will be different from those on the
datasheet, when two units are connected in parallel. The user
will need to verify that any differences will still allow the two
power supplies connected in parallel will work properly in their
product/application.
Fig. 4 Parallel Operation Connection Diagram
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TECHINCAL DATASHEET
LYTE DIN Rail Power Supply
24 V 240 W 1 Phase / DRL-24V240W1A

All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (February 2022, Rev. 06)
15
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 PCBAs 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.
PFC – Norm EN 61000-3-2
Line Current Harmonic content
Typically, the input current waveform is not sinusoidal 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
to this 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 is important 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 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
Taiwan
Delta 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
United Kingdom
Delta Electronics Europe Limited
1 Redwood Court, Peel Park Campus,
East Kilbride, Glasgow, G74 5PF, United Kingdom
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