Top

2U L2U

L2U 2U Power Supply

The Seasonic industrial power supplies with 80 PLUS® Gold efficiency rating achieve up to 90 % efficiency at 50 % load at 115 V AC input. These L2U models are protected against short circuit, over voltage and over power surges and they meet important EMI, EMC and safety standards. These are highly reliable products that are customizable with fully modular cables and are quiet due to the built-in fan control.

  • EPS 12 V
  • Fully Modular
  • 80 PLUS Gold Certified
  • Fan control: Seasonic S3FC
  • Safety: CB, cUL, TUV, BSMI
  • EMI / EMC: CE, FCC, RCM
  • Dimensions: 245 mm (L) x 100 mm (W) x 70 mm (H)

Compare products

Overview

H1UL1UH2UL2U
80PLUS 80PLUS Gold 80PLUS Gold
Intel EPS1U v2.1 compliant Yes Yes Yes Yes
ATX 12 V v2.2 compliant Yes Yes Yes Yes
Dimensions 235 mm (L) x 100 mm (W) x 40 mm (H) 235 mm (L) x 100 mm (W) x 40 mm (H) 400 W and 460 W: 225 mm (L) x 100 mm (W) x 70 mm (H)
600 W: 270 mm (L) x 100 mm (W) x 70 mm (H)
245 mm (L) x 100 mm (W) x 70 mm (H)
DC to DC converter design No Yes No Yes
Forward converter circuit Yes No Yes No
Fully modular cables Yes Yes Yes Yes
Fixed cables No No No No
40 mm double ball bearing fan Yes Yes No No
60 mm double ball bearing fan No No Yes Yes
S3FC - including Fanless mode No Yes No Yes
S2FC - Smart and Silent Fan Control Yes No Yes No
Easy-swap connector design No No No No
Zero minimum load on 3.3 V rail Yes Yes Yes*
* Not applicable to 600 W
Yes
Short circuit protection on all outputs Yes Yes Yes Yes
Over voltage protection Yes Yes Yes Yes
Over power protection Yes Yes Yes Yes
100 % HiPot test Yes Yes Yes Yes
100 % Burn-in, high temperature cycled on/off Yes Yes Yes Yes
Safety compliance CB, cUL, TUV, CCC, BSMI CB, cUL, TUV, BSMI CB, cUL, TUV, CCC, BSMI*
* Not applicable to 600 W
CB, cUL, TUV, BSMI
EMI/EMC compliance CE, FCC, RCM CE, FCC, RCM CE, FCC, RCM*
* Not applicable to 600 W
CE, FCC, RCM

Specifications

SS-500L2U

Specifications
Input frequency 50 / 60 Hz
Efficiency  80 PLUS Gold
Line regulation ± 1 % (typical)
Load regulation ± 5 % (typical)
Cross regulation ± 5 % (typical)
MTBF, full load @ 25 °C ambient (excl. DC fan) > 100,000 hours
Active Power Factor Correction 99 % (typical)
DC Outputs
+3.3 V +5 V +12 Combined -12 V +5 Vsb Total continuous power Input Type
20 A 20 A 40 A 0.3 A 2.5 A 500 W 100–240 VAC
100 W (max.) 480 W 3.6 W 12.5 W