MEAN WELL Power Supply SDR-240 Series Single Output DIN Rail Mounted with PFC Function

Product Item : SDR-240 series
Category：DIN Rail Power Supplies
Wattage: 240W
Input Voltage: 88 ~ 264VAC or 124 ~ 370VDC
Output Current: 0 ~ 10A
Output Voltage: 24 ~ 48V
Product description：The Mean Well SDR-240 is a compact 240W DIN-rail power supply with high efficiency and universal AC input. It delivers reliable industrial performance with comprehensive circuit protection.
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SDR-240 Series - 240W DIN Rail Power Supply with PFC & 150% Peak — 94% Efficiency

✓ In Stock3-Year94% EfficiencyActive PFCDC OK RelaySEMI F47

				Key Performance at a Glance
			
						240W
					
						Rated Power
					
						360W
					
						Peak Power (3s)
					
						94%
					
						Efficiency (Unified)
					
						PF>0.99
					
						Active PFC (115V)
					
						20ms
					
						Hold-up (115V/230V)
					
						63mm
					
						Width

Product Overview

The SDR-240 series is a powerhouse 240W DIN rail supply with Active PFC (PF>0.99@115Vac), 94% unified efficiency, and 150% peak power (360W for 3s). Available in 24V and 48V only, it features auto-recovery overload and overvoltage protection — no manual restart needed — plus a built-in DC OK relay for PLC/SCADA monitoring.

The SDR-240 accepts 88~264Vac universal input (124~370Vdc). The 10A at 24V variant powers entire PLC racks and multiple HMI panels; the 5A at 48V variant serves PoE networks and telecom DC distribution. Both deliver full 240W with 94% efficiency — a significant jump from the 89~91% range of the SDR-120. The PFC stage holds 20ms at both 115V and 230Vac with an exceptional PF>0.99 at 115V.

A key upgrade over SDR-120: overload auto-recovery. At 110~150% overload, the output shuts down after 3 seconds but automatically recovers without manual intervention. At >150%, constant current limiting holds for 2 seconds before possible shutdown — also with auto-recovery. Similarly, OVP uses auto-recovery shutdown instead of latch-off. The 6-pin output terminal (dual +V and dual -V) supports higher-current wiring.

Product Images

Technical Specifications

Parameter	SDR-240-24	SDR-240-48
DC Output Voltage	24V	48V
Rated Current	10A	5A
Rated Power	240W	240W
Peak Current (3s)	15A	7.5A
Peak Power (3s)	360W	360W
Ripple & Noise	100mVp-p	120mVp-p
Voltage Adj / Accuracy	24~28V / +/-1.0%	48~55V / +/-1.0%
Line / Load Regulation	+/-0.5% / +/-1.0%	+/-0.5% / +/-1.0%
Efficiency (Typ.)	94%	94%

Input Specifications (All Models)

Input Voltage	88~264Vac; 124~370Vdc
Power Factor (Typ.)	PF>0.93/230V \| PF>0.99/115V (Active PFC, full load)
AC Current / Inrush / Leakage	2.6A/115V, 1.3A/230V \| 33A/115V, 65A/230V \| <1mA/240V
Start-up / Hold-up	1500ms/60ms @ 230V; 3000ms/60ms @ 115V \| 20ms @ 115V & 230V
Peak Power Recovery	100s @ rated load -> 150%/3s \| 10s @ 50% load -> 150%/3s

Protection & Features

Overload	110~150%: >3s then shutdown, auto-recovery \| >150%: 2s CC limiting then shutdown, auto-recovery
OVP / OTP / SC	OVP: 29~33V(24V) / 56~65V(48V), shutdown, auto-recovery \| OTP: 95C+/-5C, auto-recovery \| SC: shutdown, auto-recovery
DC OK Relay	60Vdc/0.3A, 30Vdc/1A, 30Vac/0.5A resistive
Output Terminals	6-pin: dual +V (3,4) + dual -V (5,6) for high-current wiring
Safety	UL508 \| TUV BS EN/EN62368-1 \| AS/NZS 62368.1 \| BSMI CNS15598-1 \| EAC TP TC 004 \| SEMI F47
Isolation / EMC	3KVac I/P-O/P, 2KVac I/P-FG \| Class B + EN61000-6-2 Heavy Industrial + CNS15936
Temp / MTBF / Dimensions	-25~+70C \| 1,160.3K hrs Telcordia \| 63 x 125.2 x 113.5 mm / 1.03 kg

Key Features

94% Efficiency + Active PFC PF>0.99
Industry-leading 94% unified efficiency with PF>0.99@115V — dramatically reduces heat and energy costs while ensuring full harmonic compliance

150% Peak: 360W for 3 Seconds
Delivers 360W peak — starts large motors, contactor banks, and capacitive loads without oversizing the supply

Auto-Recovery Overload + OVP
All protections auto-recover — no manual restart after overload or overvoltage events. Keeps remote installations running

DC OK Relay + 6-Pin Output
60Vdc/0.3A relay for PLC monitoring + dual +V/-V terminals for reliable 10A continuous distribution

UL508 + BSMI + SEMI F47 + NZS
Quad-certified 240W supply for North America, Taiwan, Oceania, and semiconductor — deploy globally

63mm Slim + 3-Year Warranty
240W PFC supply in a 63mm fanless chassis with 100% burn-in testing — industrial reliability guaranteed

Frequently Asked Questions

Why only 24V and 48V models?

The SDR-240 does not offer a 12V variant. At 240W, 12V would require 20A output, and the platform is optimized for 24V and 48V industrial standards. For 12V at this power level, consider the XDR series.

Do protections really auto-recover on SDR-240?

Yes — this is a key upgrade over SDR-120. Overload shutdown auto-recovers, and OVP also auto-recovers. Only over-temperature requires cooling before recovery (automatic). This is critical for remote/unattended installations where manual restarts are impractical.

How does SDR-240 compare to SDR-120?

SDR-240 doubles power (240W vs 120W), improves efficiency (94% vs 89~91%), boosts PF at 115V (0.99 vs 0.96), adds auto-recovery to all protections, uses 6-pin dual output terminals, increases I/P-FG to 2KVac, but only offers 24V and 48V (no 12V). Peak recovery is faster: 10s@50% vs 15s for SDR-120.