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Delta Electronics Sync DRS-24V100W1AZ AC/DC Power Supply

The Delta Electronics Sync Series DRS-24V100W1AZ is a high-efficiency 24 Vdc DIN-rail power supply engineered for industrial applications. Delivering up to 100 W of regulated DC power, this compact unit combines robust electrical performance with a slim, space-saving design ideal for high-density cabinets.

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Delta_Electronics_DRS-24V100W1AZ

Features

  • Compact DIN rail design with reinforced isolation. Ultra compact footprint with galvanic isolation rated up to 3.0 kVac between input and output, suitable for dense control panels and safety-critical circuits
  • Wide input voltage with reliable operation in harsh environments. Supports universal AC input and delivers full rated output across a broad operating temperature range from -10°C to +55°C, making it well suited to industrial cabinets and field installations
  • High efficiency for reduced heat and energy loss. Delivers efficiency of up to 88 percent, helping minimise heat build-up inside enclosures and improving long-term reliability
  • Low earth leakage for sensitive installations. Designed with earth leakage current below 0.5 mA at 240 Vac, supporting compliance in installations with strict leakage limits
  • NEC Class 2 and Limited Power Source compliant. Certified to NEC Class 2 and LPS requirements, simplifying approval for control, automation, and safety-related applications
  • Comprehensive built-in protection. Integrated overvoltage, overcurrent, and overtemperature protection helps safeguard connected loads and reduce downtime
Specifications
INPUT RATINGS/CHARACTERISTICS
Model Number DRS-24V100W1AZ
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 < 1.2 A @ 115 Vac, < 0.6 A @ 230 Vac
Efficiency at 100% Load > 89% @ 115 Vac & 230 Vac
Max. Power Dissipation No load < 0.4 W @ 115 Vac & 230 Vac
100% load < 11 W @ 115 Vac & 230 Vac
Max Inrush Current (Cold Start) < 25 A @ 115 Vac, < 40 A @ 230 Vac
Power Factor at 100% Load > 0.97 @ 115 Vac, > 0.9 @ 230 Vac
Leakage Current < 0.5 mA @ 264 Vac
OUTPUT RATINGS/CHARACTERISTICS**
Model Number
 DRS-24V100W1AZ
Nominal Output Voltage 24 Vdc
Factory Set Point Tolerance 24 Vdc ± 2%
Output Voltage Adjustment Range 24-28 Vdc
Output Current 4.0 A (96 W max.)
Output Power 96 W
Line Regulation < 0.5% (@ 85-264 Vac, 100% load)
Load Regulation < 1.0% (@ 85-264 Vac, 0-100% load)
PARD*** (20MHz) < 50 mVpp @ > 0°C to 70°C
< 100 mVpp @ 0°C to -20°C
Rise Time < 100 ms @ nominal input (100% load)
Start-up Time < 2,500 ms @ 115 Vac (100% load)
< 1,500 ms @ 230 Vac (100% load)
Hold-up Time > 50 ms @ 115 Vac & 230 Vac (100% load)
Dynamic Response (Overshoot & Undershoot O/P Voltage) ± 5% @ 85-264 Vac input, 0-100% load
(Slew Rate: 0.1 A/μs, 50% duty cycle @ 5 Hz to 1 KHz)
Start-up with Capacitive Loads 3,000 µF Max
Functional DC OK Relay Contact
(for DRS-24V100W1AR,
DRS-24V100W1NR		 30 V / 1 A, resistive load
The relay contact are normally “ON” (closed) when the output
(Vout) is greater than 75% of its rated value and “OFF”
(opened) when the output (Vout) is less than 75% typ.
**For power de-rating from < -10°C to -20°C, and 55°C to 70°C, see power de-rating on page 3.
***PARD is measured with an AC coupling mode, 5cm wires, and in parallel with 0.1 μF ceramic capacitor & 47 μF electrolytic capacitor.
MECHANICAL
Model Number DRS-24V100W1AZ
Case Cover / Chassis Plastic
Dimensions (H x W x D) 75 x 45 x 100 mm (2.95 x 1.77 x 3.94 inch)
Unit Weight 0.325 kg (0.72 lb)
LED Indicator Green LED DC OK
Cooling System Convection
Terminal Input 3 Pins (Rated 300 V/16 A)
Output 4 Pins (Rated 300 V/16 A)
Wire Input / Output AWG 22-12 / AWG 20-12
Mounting Rail Standard TS35 DIN Rail in accordance with EN 60715
Noise (1 Meter from power supply) Sound Pressure Level (SPL) < 25 dBA
ENVIRONMENT
Model Number DRS-24V100W1AZ
Surrounding Air Temperature Operating -20°C to +70°C (Cold start at -40°C @ 40% load)
Storage -40°C to +85°C
Power De-rating Temperature -10°C to -20°C de-rate power by 2% / °C
> 55°C de-rate power by 3.33% / °C
Operating Humidity 5 to 95% RH (Non-Condensing)
Operating Altitude 0 to 2,000 Meters (6,560 ft.)
Shock Test Non- Operating IEC 60068-2-27, Half Sine Wave: 50G for a duration of 11 ms; 3 times per direction, 9 times in total
Operating IEC 60068-2-27, Half Sine Wave: 10G for a duration of 11 ms; 1 time in X axis
Vibration Non- Operating IEC 60068-2-6, Random: 5-500 Hz; 2.09Grms, 20 min per axis for all X, Y, Z directions
Operating IEC 60068-2-6, Sine Wave: 10-500 Hz; 2G peak; displacement of 0.35 mm; 1 octave per min; 60 min per axis for all X, Y, Z directions
Over Voltage Category II
Pollution Degree 2
PROTECTIONS
Model Number DRS-24V100W1AZ
Overvoltage < 34.8 V, SELV Output, Latch Mode
Overload / Overcurrent

105~140% of rated load current,
Fold Forward Mode (current rises, voltage drops),
Auto-recovery when the fault is removed
Over Temperature < 75°C Surrounding Air Temperature @ 100% load, Latch Mode
Short Circuit Hiccup Mode, Non-Latching (Auto-recovery when the fault is removed)
Internal Fuse at L pin T3.15A
Degree of Protection IP20
Protection Against Shock Class I with PE* connection
*PE: Primary Earth  
RELIABILITY DATA
Model Number DRS-24V100W1AZ
MTBF Telcordia
SR-332		 > 700,000 hrs, I/P: 115 Vac & 230 Vac, O/P: 100% load, Ta: 25°C
MIL-HDBK-217F 121,000 hrs, I/P: 115 Vac & 230 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
Model Number DRS-24V100W1AZ
Safety Entry Low Voltage SELV (IEC 60950)
Electrical Safety TUV Bauart EN 62368-1
UL/cUL recognized UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E191395)
UL 62368-1 and CSA C22.2 No. 62368-1 (File No. E191395)
CB Scheme IEC 60950-1, IEC 62368-1
UKCA BS EN 62368-1
Industrial Control Equipment UL/cUL listed UL 508 and CSA C22.2 No. 107.1-01 (File No. E315335)
Class 2 Power Supply UL/cUL recognized UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E191395)
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 No. 1011 and
The Electromagnetic Compatibility Regulations 2016 No. 1091
Galvanic Isolation Input to Output 3.0 KVac
Input to Ground 3.0 KVac
Output to Ground 0.5 KVac
EMC
Model Number DRS-24V100W1AZ
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
Component Power Supply for General Use EN 61204-3
Immunity Generic Standards: EN/BS EN 55024, EN/BS EN 61000-6-1,
EN/BS EN 61000-6-2
Electrostatic Discharge IEC 61000-4-2

Level 3 Criteria A¹⁾

Air Discharge: 8 kV

Contact Discharge: 6 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⁾: 2 kV
Differential Mod⁴⁾: 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⁾
30 A/meter
Voltage Dips and Interruptions IEC 61000-4-11 0% of 100 Vac, 20 ms Criteria A¹⁾
0% of 100 Vac, 5000 ms Criteria B²⁾
40% of 100 Vac, 200 ms Criteria B²⁾
70% of 100 Vac, 10 ms Criteria A¹⁾
70% of 100 Vac, 500 ms Criteria A¹⁾
0% of 240 Vac, 20 ms Criteria A¹⁾
0% of 240 Vac, 5000 ms Criteria B²⁾
40% of 240 Vac, 200 ms Criteria A¹⁾
70% of 240 Vac, 500 ms Criteria A¹⁾
Low Energy Pulse Test (Ring Wave) IEC 61000-4-12 Level 3 Criteria A¹⁾
Common Mode³⁾ : 2 kV
Differential Mode⁴⁾ : 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) 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)
Technical Illustrations
GA_Drawing_DRS-24V100W1AZ
Downloads
Datasheet_DRS-24V100W1AZ..pdf
INPUT RATINGS/CHARACTERISTICS
Model Number DRS-24V100W1AZ
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 < 1.2 A @ 115 Vac, < 0.6 A @ 230 Vac
Efficiency at 100% Load > 89% @ 115 Vac & 230 Vac
Max. Power Dissipation No load < 0.4 W @ 115 Vac & 230 Vac
100% load < 11 W @ 115 Vac & 230 Vac
Max Inrush Current (Cold Start) < 25 A @ 115 Vac, < 40 A @ 230 Vac
Power Factor at 100% Load > 0.97 @ 115 Vac, > 0.9 @ 230 Vac
Leakage Current < 0.5 mA @ 264 Vac
OUTPUT RATINGS/CHARACTERISTICS**
Model Number
 DRS-24V100W1AZ
Nominal Output Voltage 24 Vdc
Factory Set Point Tolerance 24 Vdc ± 2%
Output Voltage Adjustment Range 24-28 Vdc
Output Current 4.0 A (96 W max.)
Output Power 96 W
Line Regulation < 0.5% (@ 85-264 Vac, 100% load)
Load Regulation < 1.0% (@ 85-264 Vac, 0-100% load)
PARD*** (20MHz) < 50 mVpp @ > 0°C to 70°C
< 100 mVpp @ 0°C to -20°C
Rise Time < 100 ms @ nominal input (100% load)
Start-up Time < 2,500 ms @ 115 Vac (100% load)
< 1,500 ms @ 230 Vac (100% load)
Hold-up Time > 50 ms @ 115 Vac & 230 Vac (100% load)
Dynamic Response (Overshoot & Undershoot O/P Voltage) ± 5% @ 85-264 Vac input, 0-100% load
(Slew Rate: 0.1 A/μs, 50% duty cycle @ 5 Hz to 1 KHz)
Start-up with Capacitive Loads 3,000 µF Max
Functional DC OK Relay Contact
(for DRS-24V100W1AR,
DRS-24V100W1NR		 30 V / 1 A, resistive load
The relay contact are normally “ON” (closed) when the output
(Vout) is greater than 75% of its rated value and “OFF”
(opened) when the output (Vout) is less than 75% typ.
**For power de-rating from < -10°C to -20°C, and 55°C to 70°C, see power de-rating on page 3.
***PARD is measured with an AC coupling mode, 5cm wires, and in parallel with 0.1 μF ceramic capacitor & 47 μF electrolytic capacitor.
MECHANICAL
Model Number DRS-24V100W1AZ
Case Cover / Chassis Plastic
Dimensions (H x W x D) 75 x 45 x 100 mm (2.95 x 1.77 x 3.94 inch)
Unit Weight 0.325 kg (0.72 lb)
LED Indicator Green LED DC OK
Cooling System Convection
Terminal Input 3 Pins (Rated 300 V/16 A)
Output 4 Pins (Rated 300 V/16 A)
Wire Input / Output AWG 22-12 / AWG 20-12
Mounting Rail Standard TS35 DIN Rail in accordance with EN 60715
Noise (1 Meter from power supply) Sound Pressure Level (SPL) < 25 dBA
ENVIRONMENT
Model Number DRS-24V100W1AZ
Surrounding Air Temperature Operating -20°C to +70°C (Cold start at -40°C @ 40% load)
Storage -40°C to +85°C
Power De-rating Temperature -10°C to -20°C de-rate power by 2% / °C
> 55°C de-rate power by 3.33% / °C
Operating Humidity 5 to 95% RH (Non-Condensing)
Operating Altitude 0 to 2,000 Meters (6,560 ft.)
Shock Test Non- Operating IEC 60068-2-27, Half Sine Wave: 50G for a duration of 11 ms; 3 times per direction, 9 times in total
Operating IEC 60068-2-27, Half Sine Wave: 10G for a duration of 11 ms; 1 time in X axis
Vibration Non- Operating IEC 60068-2-6, Random: 5-500 Hz; 2.09Grms, 20 min per axis for all X, Y, Z directions
Operating IEC 60068-2-6, Sine Wave: 10-500 Hz; 2G peak; displacement of 0.35 mm; 1 octave per min; 60 min per axis for all X, Y, Z directions
Over Voltage Category II
Pollution Degree 2
PROTECTIONS
Model Number DRS-24V100W1AZ
Overvoltage < 34.8 V, SELV Output, Latch Mode
Overload / Overcurrent

105~140% of rated load current,
Fold Forward Mode (current rises, voltage drops),
Auto-recovery when the fault is removed
Over Temperature < 75°C Surrounding Air Temperature @ 100% load, Latch Mode
Short Circuit Hiccup Mode, Non-Latching (Auto-recovery when the fault is removed)
Internal Fuse at L pin T3.15A
Degree of Protection IP20
Protection Against Shock Class I with PE* connection
*PE: Primary Earth  
RELIABILITY DATA
Model Number DRS-24V100W1AZ
MTBF Telcordia
SR-332		 > 700,000 hrs, I/P: 115 Vac & 230 Vac, O/P: 100% load, Ta: 25°C
MIL-HDBK-217F 121,000 hrs, I/P: 115 Vac & 230 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
Model Number DRS-24V100W1AZ
Safety Entry Low Voltage SELV (IEC 60950)
Electrical Safety TUV Bauart EN 62368-1
UL/cUL recognized UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E191395)
UL 62368-1 and CSA C22.2 No. 62368-1 (File No. E191395)
CB Scheme IEC 60950-1, IEC 62368-1
UKCA BS EN 62368-1
Industrial Control Equipment UL/cUL listed UL 508 and CSA C22.2 No. 107.1-01 (File No. E315335)
Class 2 Power Supply UL/cUL recognized UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E191395)
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 No. 1011 and
The Electromagnetic Compatibility Regulations 2016 No. 1091
Galvanic Isolation Input to Output 3.0 KVac
Input to Ground 3.0 KVac
Output to Ground 0.5 KVac
EMC
Model Number DRS-24V100W1AZ
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
Component Power Supply for General Use EN 61204-3
Immunity Generic Standards: EN/BS EN 55024, EN/BS EN 61000-6-1,
EN/BS EN 61000-6-2
Electrostatic Discharge IEC 61000-4-2

Level 3 Criteria A¹⁾

Air Discharge: 8 kV

Contact Discharge: 6 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⁾: 2 kV
Differential Mod⁴⁾: 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⁾
30 A/meter
Voltage Dips and Interruptions IEC 61000-4-11 0% of 100 Vac, 20 ms Criteria A¹⁾
0% of 100 Vac, 5000 ms Criteria B²⁾
40% of 100 Vac, 200 ms Criteria B²⁾
70% of 100 Vac, 10 ms Criteria A¹⁾
70% of 100 Vac, 500 ms Criteria A¹⁾
0% of 240 Vac, 20 ms Criteria A¹⁾
0% of 240 Vac, 5000 ms Criteria B²⁾
40% of 240 Vac, 200 ms Criteria A¹⁾
70% of 240 Vac, 500 ms Criteria A¹⁾
Low Energy Pulse Test (Ring Wave) IEC 61000-4-12 Level 3 Criteria A¹⁾
Common Mode³⁾ : 2 kV
Differential Mode⁴⁾ : 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) 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)
GA_Drawing_DRS-24V100W1AZ
Datasheet_DRS-24V100W1AZ..pdf

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Model Number Input Voltage (Vac) Output Voltage (Vdc) Output Current (A)
product variant DRS-24V100W1AZ 85-264Vac (50-60Hz) 24Vdc 4.0A (96 W max.)

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