800W DC 48V Isolated Switching Power Supply – Silent 17A Adjustable
800W DC 48V Isolated Switching Power Supply – Silent 17A Adjustable
800W Isolated Switching Power Supply | AC 200–260V to DC 48V | 17A Adjustable Output
Power your amplifiers, industrial equipment, LED lighting, and scientific instruments with confidence. This high-efficiency isolated switching power supply converts AC 200–260V mains input to a stable, adjustable DC 48V output — delivering up to 800W rated power (1000W peak) in a compact, whisper-quiet enclosure. Made in Mainland China.
Why Choose This Switching Power Supply?
- Silent Air-Cooled Design: The optimized air-cooled cooling system maintains stable, reliable operation even in warm environments — without the distracting noise of conventional units.
- Low EMI / Clean Output: Sinusoidal excitation architecture and advanced EMC/EMI suppression keep output ripple and voltage spikes tightly controlled, delivering a clean, pure power feed to downstream amplifiers and sensitive electronics.
- Adjustable Output Voltage: Fine-tune the DC output anywhere from 44.5V to 50.5V to meet the exact demands of your application.
- Built-In Protection Circuits: Overcurrent and short-circuit protection safeguard both the power supply and your connected equipment from unexpected fault conditions.
- High Efficiency: Peak efficiency ≥ 92% minimizes wasted energy and keeps component temperatures low — extending service life and maintaining long-term stability.
- Compact & Robust Build: High transformer core utilization and optimized component layout in a 173 × 70 × 49 mm form factor — easy to integrate into racks, enclosures, or custom builds.
Full Specifications
| Input Voltage | AC 200–260V, 50/60Hz |
| Output Voltage | DC 48V (adjustable: 44.5–50.5V) |
| Rated Current | 17A |
| Peak Current | 20A |
| Rated Power | 800W |
| Peak Power | 1000W |
| Peak Efficiency | ≥ 92% |
| Protection | Overcurrent & Short-Circuit Protection |
| EU LVD Classification | Low Voltage — Below 50Vac or 75Vdc |
| Dimensions | 173 × 70 × 49 mm |
| Country of Origin | Made in Mainland China |
Ideal Applications
- Audio power amplifiers
- Industrial automation equipment
- Scientific research instruments
- LED lighting systems
- Civilian and hobbyist electronics projects
What's in the Box?
- 1 × 800W Isolated Switching Power Supply
Please Note: Colors may vary slightly due to monitor calibration differences. Allow ±1–10 mm variance due to manual measurement.
For guidance on electrical safety standards for power supply equipment, visit the OSHA Electrical Safety resource. For general energy efficiency standards and practices, see Energy.gov – Electronics Energy Tips.
Frequently Asked Questions
Q: What input voltage range does this switching power supply support?
A: This isolated switching power supply accepts AC 200–260V input at 50 or 60Hz, making it compatible with standard mains voltages found across Europe, Asia, and other regions operating within that range.
Q: Can I adjust the DC output voltage, and how much can I change it?
A: Yes — the output voltage is adjustable from 44.5V to 50.5V DC using the onboard trimmer, giving you precise control over the voltage delivered to your amplifier, LED driver, or industrial load.
Q: What protection features are built into this 800W power supply?
A: The unit includes dedicated overcurrent protection and short-circuit protection circuits. These automatically respond to fault conditions to help protect both the power supply itself and any connected downstream equipment.
Q: Is this power supply suitable for audio amplifier applications?
A: Absolutely. The sinusoidal excitation architecture and optimized EMC/EMI design minimize output ripple and high-frequency noise, delivering a clean, stable 48V DC rail that is ideal for powering rear-end power amplifiers and other audio electronics.
Q: How efficient is this switching power supply?
A: This unit achieves a peak efficiency of ≥ 92%, which reduces energy waste, minimizes heat generation, and helps keep internal component temperatures controllable — contributing to a longer operational lifespan.