MEAN WELL Power Supply SDR-480P Series Single Output DIN Rail Mounted with PFC and Parallel Function

Product Item : SDR-480P series
Category：DIN Rail Power Supplies
Wattage: 480W
Input Voltage: 90 ~ 264VAC or 127 ~ 370VDC
Output Current: 0 ~ 20A
Output Voltage: 24 ~ 48V
Product description：The Mean Well SDR-480P is a slim 480W DIN-rail power supply with active PFC and universal AC input.
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SDR-480P Series - 480W DIN Rail Power Supply with PFC, Parallel 3840W & 150% Peak

✓ In Stock3-YearParallel 3840W720W PeakDC OK Relay<0.6mA

				Key Performance at a Glance
			
						480W
					
						Rated Power
					
						3840W
					
						Parallel Max (7+1)
					
						720W
					
						Peak Power (3s)
					
						94%
					
						Efficiency
					
						<0.6mA
					
						Leakage Current
					
						85.5mm
					
						Width

Product Overview

The SDR-480P series takes the SDR-480 platform and adds massive parallel capability up to 3840W (7+1 units). The "P" variant replaces the NC contacts with P+/P- parallel bus terminals, enabling active current sharing across up to 8 units — the only SDR model with built-in paralleling.

Comparing to SDR-480: the same 480W single-unit power, 94% efficiency, PFC, CC limiting, 150% peak, and chassis — but with P+/P- parallel pins on the 8-pin terminal, <0.6mA leakage (even lower), 105C OTP (vs 95C), and parallel specs of up to 8 units, <0.2V difference, 90% derating, >3% minimum load. For single-unit applications, SDR-480 is sufficient; choose SDR-480P when you need future scalability or multi-unit redundancy.

Product Images

Technical Specifications

Parameter	SDR-480P-24	SDR-480P-48
DC Output Voltage	24V	48V
Rated / Peak Current (3s)	20A / 30A (720W)	10A / 15A (720W)
Rated / Parallel Max	480W / 3840W (7+1)	480W / 3840W (7+1)
Ripple / Voltage Adj / Accuracy	100mV / 24~28V / +/-1.2%	120mV / 48~55V / +/-1.0%
Efficiency (Typ.)	94%	94%

Input & Features

Input / PFC	90~264Vac; 127~370Vdc \| PF>0.94/230V, PF>0.99/115V
AC / Inrush / Leakage / Hold-up	5A/115V, 2.5A/230V \| 40A/115V, 80A/230V \| <0.6mA \| 14ms/230V
Parallel (P+/P-)	Up to 8 units (7+1), 3840W \| Vo diff <0.2V \| I = rated x units x 0.9 \| Min load >3% total
DC OK Relay / Terminal	60V/0.3A \| 8-pin: Dual +V/-V (1-4) + Relay (5,6) + P+(7) + P-(8)
Protection	110~150%: >3s auto-recovery \| >150%: 2s CC+auto-recovery \| OVP: auto-recovery/restart \| OTP: 105C+/-5C, auto-recovery
Safety / EMC / Temp / Dims	UL508/TUV/NZS/BSMI/EAC/SEMI F47 \| Class B + EN61000-6-2 \| -25~+70C \| 85.5 x 125.2 x 128.5 mm / 1.6 kg

Key Features

Parallel 3840W (7+1 Units)
Built-in P+/P- active current sharing — scale from 480W to 3840W with up to 8 units, no external controllers

150% Peak: 720W/3s
Delivers 720W peak for massive motor starts and contactor banks — same peak capability as SDR-480

<0.6mA Ultra-Low Leakage
Even lower than SDR-480's 0.8mA — best-in-class for medical-adjacent and sensitive electronic installations

94% Efficiency + CC Limiting
Constant current circuit for motor starts and battery charging at 480W with near-unity PF

DC OK Relay + P+/P- in One Terminal
8-pin terminal integrates monitoring relay and parallel bus — clean wiring for large-scale DC distribution

UL508 + SEMI F47 + 3-Year
Quad-certified parallel-capable industrial supply with 100% burn-in — built for mission-critical scaling

Frequently Asked Questions

How does SDR-480P differ from SDR-480?

The SDR-480P replaces the NC (normally-closed) contacts with P+/P- parallel bus terminals, enabling active current sharing across up to 8 units (3840W). It also features lower leakage (<0.6mA vs <0.8mA) and higher OTP threshold (105C vs 95C). For single-unit use with NC monitoring, choose SDR-480. For scalable multi-unit DC distribution, choose SDR-480P.

Can I mix SDR-480 and SDR-480P in parallel?

No. Only SDR-480P units can be paralleled via the P+/P- bus. SDR-480 lacks the parallel terminals and current-sharing circuitry. For parallel applications, all units must be SDR-480P of the same voltage.

What happens if parallel load drops below 3%?

Below 3% of total rated current, only one unit may remain active while others enter standby. For a single 480W unit, that's 0.6A at 24V or 0.3A at 48V — a very light load. For an 8-unit cluster (3840W), keep total load above ~115W to ensure all units share current.