Delta Electronics FORCE GT 480W 3-Phase Series AC/DC Power Supply
The Delta Force-GT Series 480W DIN rail power supplies deliver high-specification performance designed to stand alongside leading European and Japanese brands such as Phoenix Contact, Weidmüller, TDK-Lambda, and PULS. Available in 24Vdc and 48Vdc models, the series supports both 3-phase (320–575 Vac) and 2-phase (340–575 Vac) input systems, offe...
Read MoreThe Delta Force-GT Series 480W DIN rail power supplies deliver high-specification performance designed to stand alongside leading European and Japanese brands such as Phoenix Contact, Weidmüller, TDK-Lambda, and PULS. Available in 24Vdc and 48Vdc models, the series supports both 3-phase (320–575 Vac) and 2-phase (340–575 Vac) input systems, offering engineers true installation flexibility in modern industrial environments.
Featuring industry-leading EMC performance, Class B conducted and radiated emissions, and surge immunity up to 6 kV when used with SPD, the Force-GT Series is engineered for demanding applications requiring electrical robustness and long-term reliability.
A built-in constant current mode supports both traditional load supply and battery-charging applications, while conformal-coated PCBAs safeguard against dust, moisture, and industrial pollutants. With efficiency levels up to 95.5%, reduced no-load consumption, and convection-based fanless cooling, the power supply maintains stable operation across a wide ambient range from -40°C cold start to +70°C full-load.
Integrated DC OK relay contacts and a green status LED provide straightforward system diagnostics, and the compact 65 mm slimline housing makes it ideal for space-constrained control cabinets. Universal DIN rail mounting (EN 60715) ensures fast installation across automation, machinery, process control, and transportation applications.
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Features
- Wide Universal Input: 320...575Vac or 450...800Vdc
- Broad operating temperature range of -40°C to +70°C with derating
- Integrated constant current mode, enabling reliable performance in both load supply and charging applications
- Conformal-coated PCB assemblies protect against dust, moisture, and pollutants common in industrial settings
- Built-in DC OK relay and LED indicator provide clear status feedback for system monitoring and diagnostics
- Comparable in performance to leading European and Japanese brands, offering cost-effective alternatives
Specifications
| INPUT RATINGS/CHARACTERISTICS | |||
|---|---|---|---|
| Model Number | DRF-24V480W3GBA |
DRF-48V480W3GBA |
|
| Nominal Input Voltage | 3 x 380...500 Vac | ||
| Input Voltage Range | 3 x 320...575 Vac (3-Phase) or 2 x 340...575 Vac (2-Phase)*¹ | ||
| Nominal Input Frequency | 50...60 Hz | ||
| Input Frequency Range | 47...63 Hz | ||
| DC Input Voltage Range*² | 450...800 Vdc | ||
| Input Current | < 0.85 A @ 3 x 400 Vac, < 0.73 A @ 3 x 500 Vac | ||
| Efficiency at 100% Load | 94.0% typ. @ 3 x 400 Vac & 500 Vac | 95.5% typ. @ 3 x 400 Vac & 500 Vac | |
| Average Efficiency (25%, 50%, 75%, 100%) |
92.0% typ. @ 3 x 400 Vac & 500 Vac |
94.0% typ. @ 3 x 400 Vac & 500 Vac |
|
| Max. Power Dissipation | 0% load | < 7.0 W @ 3 x 400 Vac & 3 x 500 Vac | |
| 100% load | < 33.0 W @ 3 x 400 Vac & 3 x 500 Vac | ||
| Max Inrush Current (Cold Start) | 35 A typ. @ 3 x 400 Vac & 3 x 500 Vac | ||
| Power Factor at 100% Load | > 0.90 @ 3 x 400 Vac, > 0.88 @ 3 x 500 Vac | ||
| Leakage Current | < 3.5 mA @ 3 x 500 Vac | ||
| *1 For 2-Phase input, see power de-rating on page 3. *2 Power supply can operate at DC input. |
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| OUTPUT RATINGS/CHARACTERISTICS*³ | ||
|---|---|---|
| Model Number | DRF-24V480W3GBA | DRF-48V480W3GBA |
| Nominal Output Voltage | 24 Vdc | 48 Vdc |
| Factory Set Point Tolerance | 24 Vdc ± 2% | 48 Vdc ± 1% |
| Output Voltage Adjustment Range | 24...28Vdc | 48-56 Vdc |
| Output Current | 0-20.0 A (480 W max) | 0-10.0 A (480 W max) |
| Output Power | 480W max | |
| Line Regulation | < 40 mV (@ 3 x 320-575 Vac input, 100% load) |
< 80 mV (@ 3 x 320-575 Vac input, 100% load) |
| Load Regulation | < 200 mV (@ 3 x 320-575 Vac input, 0-100% load) |
< 280 mV (@ 3 x 320-575 Vac input, 0-100% load) |
| PARD*⁴ (20MHz) | < 150 mVpp | < 175 mVpp |
| Rise Time | 100 ms typ. @ nominal input (100% load) | |
| Start-up Time | 1,000 ms typ. @ nominal input (100% load) | |
| Hold-up Time | 20 ms typ. @ 3 x 400 Vac & 500 Vac (100% load) | |
| Dynamic Response (Overshoot & Undershoot O/P Voltage) | ± 5% @ 3 x 320-575 Vac input, 1.5-100% load (Slew Rate: 0.1 A/μs, 50% duty cycle @ 5 Hz to 1 kHz) | ± 5% @ 3 x 320-575 Vac input, 10-100% load (Slew Rate: 0.1 A/μs, 50% duty cycle @ 5 Hz to 1 kHz) |
| Start-up with Capacitive Loads | 20,000 μF Max | |
| DC OK Relay Contact | Rated: 30 V at 1 A, resistive load. Refer to the details in the Function section at DC OK Relay Contacts and LED Indicator Characteristics on page 11. | |
| *3 For power de-rating from 55°C to 70°C, see power de-rating on page 3. *4 PARD is measured with an AC coupling mode, 5 cm wires, and in parallel to end terminal with 0.1 μF ceramic capacitor & 47 μF electrolytic capacitor. |
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| MECHANICAL | |||
|---|---|---|---|
| Model Number | DRF-24V480W3GBA | DRF-48V480W3GBA |
|
| Case Cover / Chassis | Aluminum | ||
| Dimensions (H x W x D) | 124 x 65 x 127.3 mm (4.88 x 2.56 x 5.01 inch) | ||
| Unit Weight | 1.20 kg (2.65 lb) | ||
| Indicator | Green LED (DC OK) | ||
| Cooling System | Convection | ||
| Terminal*⁵ | Input | 4 Pins (Rated 600 V/ 30 A) | |
| Output | 4 Pins (Rated 600 V / 30 A) | ||
| DC OK | 2 Pins (Rated 300 V / 12 A) | ||
| Wire | Input | AWG 18-10 | |
| Output | AWG 12-10 | ||
| DC OK | AWG 20-16 | ||
| Mounting Rail | Standard TS35 DIN Rail in accordance with EN 60715 | ||
| Noise (1 Meter from power supply) | Sound Pressure Level (SPL) < 25 dBA | ||
| *5 The torque at the screw terminal connector shall not exceed 5.4 Kgf.cm. (4.7 lbf.in). | |||
| ENVIRONMENT | ||||
|---|---|---|---|---|
| Model Number | DRF-24V480W3GBA |
DRF-48V480W3GBA |
||
| Surrounding Air Temperature | Operating | 3-Phase -40°C to +70°C 2-Phase -40°C to +60°C |
||
| Storage | -40°C to +85°C | |||
| Power De-rating | Vertical Mounting | > 55°C de-rate power by 3.33% / °C | ||
| Horizontal Mounting | > 25°C de-rate power by 2.5% / °C | |||
| Input Voltage | 2-Phase 2 x 340-575 Vac de-rate power to 80% |
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| Operating Humidity | 5 to 95% RH (Non-Condensing) | |||
| Operating Altitude and Over Voltage Category | OVC III | 0 to 2,500 Meters (8,200 ft.) | According to IEC/EN 62477-1 / EN 60204-1 (clearance and creepage distances) and IEC 62103 (safety part) | |
| OVC II | 2,500 to 6,000 Meters (19,680 ft.) | |||
| 0 to 5,000 Meters (16,400 ft.) | According to IEC/EN 62368-1, IEC/EN 61010 | |||
| Shock Test | Non- Operating | IEC 60068-2-27, Half Sine Wave: 50 G for duration of 11 ms; 3 times per direction | ||
| Vibration | Operating | IEC 60068-2-6, Sine Wave: 10-500 Hz; 3G peak; 60 min per axis for all X, Y, Z directions | ||
| Pollution Degree | 2 | |||
| PROTECTIONS | ||
|---|---|---|
| Model Number | DRF-24V480W3GBA | DRF-48V480W3GBA |
| Overvoltage |
< 35 V, Hiccup Mode, Non-Latching (Auto-Recovery |
|
| Overload / Overcurrent | 110 – 150% of rated load current, Auto-recovery Continuous current limit Mode*⁶ (Vo > 18 Vdc) | |
| Over Temperature | 60°C-80°C Surrounding Air Temperature @ 100% load, Non-Latching (Auto-Recovery) | |
| Short Circuit | Hiccup Mode, Non-Latching (Auto-Recovery when the fault is removed) |
|
| Internal Fust at L pin | T 3.15 A | |
| Degree of Protection | IP20 | |
| Protection Against Shock | Class I with PE*⁷ connection | |
| *6 Constant current limit protection for inductive and capacitive load applications *7 PE: Primary Earth |
||
| RELIABILITY DATA | ||
|---|---|---|
| MTBF | Telcordia SR-332 |
> 600,000 hrs I/P: 3 x 400 Vac & 3 x 500 Vac, O/P: 100% load, Ta: 25°C |
| Expected Cap Life Time | 10 Years | I/P: 3 x 400 Vac & 3 x 500 Vac, O/P: 50% load, Ta: 40°C |
| SAFETY STANDARDS/DIRECTIVES | ||
|---|---|---|
| Electrical Equipment of Machines | EN/BS EN 60204-1 (over voltage category III) | |
| Electrical Equipment for Use in Electrical Power Installations | IEC/EN/BS EN 62477-1 / IEC 62103 | |
| Safety Entry Low Voltage | SELV (IEC 60950-1) | |
| Electrical Safety | SIQ Bauart | IEC 62368-1, IEC 60950-1, IEC 61010-1/-2-201 |
| UL/cUL recognized | EN/BS EN 62368-1, EN/BS EN 61010-1/-2-201 | |
| CB scheme | UL 62368-1, UL 61010-1/-2-201 | |
| UKCA | BS EN 62368-1, BS EN 61010-1, BS EN 61010-2-201 | |
| EAC | TP TC 004/2011 | |
| BIS | IS 13252 (Part 1) | |
| Electrical Equipment for Measurement, Control, and Laboratory Use | UL/cUL listed | UL 61010-1, UL 61010-2-201 (File No. E315355) |
| 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 | 4.0 kVac |
| Input to Ground | 2.0 kVac | |
| Output to Ground | 1.5 kVac | |
| DC OK relay contact to Output | 0.5 kVac | |
| DC OK relay contact to Ground | 1.5 kVac | |
| EMC*⁸ | |||||
|---|---|---|---|---|---|
| Model Number | DRF-24V480W3GBA | DRF-48V480W3GBA |
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| Emissions (CE & RE) | Generic Standards: EN/BS EN 61000-6-3, CISPR 32, EN/BS EN 55032, KS C 9832, FCC Title 47: Class B | ||||
| Component Power Supply for General Use |
EN/BS EN 61204-3 | ||||
| Immunity | EN/BS EN 55035, KS C 9835, EN/BS EN 61000-6-2 Compliance to EN 61000-6-1 |
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| Electrostatic Discharge | IEC 61000-4-2 |
Level 4 Criteria A¹⁾ Air Discharge: 15 kV Contact Discharge: 8 kV |
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| Radiated Field | IEC 61000-4-3 |
Criteria A¹⁾ 1.4 GHz – 2 GHz, 10 V/M, 80% Modulation (1 kHz) 2 GHz – 6 GHz, 10 V/M, 80% Modulation (1 kHz) |
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| Electrical Fast Transient / Burst | IEC 61000-4-4 |
Level 3 Criteria A¹⁾ 4 kV |
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| Surge | IEC 61000-4-5 |
Level 4 Criteria A¹⁾ |
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| Conducted | IEC 61000-4-6 | Level 3 Criteria A¹⁾ 150 kHz – 80 MHz, 10 Vrms |
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| Power Frequency Magnetic Fields | IEC 61000-4-8 | Level 4 Criteria A¹⁾ 30 A/m |
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| Voltage Dips and Interruptions | IEC 61000-4-11 | 0% of 3 x 380 Vac 0% of 3 x 480 Vac |
0Vac, 20ms 0Vac, 20ms |
Criteria A¹⁾ Criteria A¹⁾ |
|
| 40% of 2 x 380 Vac 40% of 2 x 480 Vac 70% of 2 x 380 Vac 70% of 2 x 480 Vac 0% |
152 Vac, 200 ms 192 Vac, 200 ms 266 Vac, 500 ms 336 Vac, 500 ms 0 Vac, 5,000 ms |
Criteria A¹⁾ Criteria A¹⁾ Criteria A¹⁾ Criteria A¹⁾ Criteria B²⁾ |
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| Low Energy Pulse Test (Ring Wave) |
IEC 61000-4-12 | Level 3 Criteria A¹⁾ Common Mode³⁾: 2 kV Differential Mode⁴⁾: 1 kV |
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| Harmonic Current Emission | IEC/EN/BS EN 61000-3-2, Class A | ||||
| Voltage Fluctuation and Flicker | IEC/EN/BS EN 61000-3-3 | ||||
| Voltage Sag Immunity SEMI F47 – 0706 | 80% of 380 Vac 70% of 380 Vac 50% of 380 Vac |
304 Vac, 1,000 ms 266 Vac, 500 ms 190 Vac, 200 ms |
Criteria A¹⁾ Criteria A¹⁾@ 24V / C5) @ 48V Criteria A¹⁾@ 24V / C5) @ 48V |
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| 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) *8 Power supply is considered a component in the end-user’s system. Please contact our local sales to get more information about the power supply EMC test setup. |
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Selection Table
| MODEL NUMBER | INPUT VOLTAGE RANGE | RATED OUTPUT VOLTAGE | RATED OUTPUT CURRENT |
|---|---|---|---|
| DRF-24V480W3GBA |
3 x 320-575 Vac (3-Phase) or |
24Vdc | 20A |
| DRF-48V480W3GBA | 48Vdc | 10A |
Technical Drawings
Warranty & Returns
Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.
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