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WLC550

ARCTIC BLUE SERIES
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WLC550

The EOS WLC Conduction Rated Arctic Series addresses the growing demand in the market for conduction rated power supplies. 550 watts of EOS Power in 22.5 cubic inches which can be used in conduction, convection or forced-air modes of operation.

FEATURES
  • 5 x 3 x 1.5 Inches Form factor
  • Up to 550 Watts with Forced Air Cooled
  • Efficiencies up to 92%
  • -40 to 70 degree operating temperature
  • Remote ON/OFFNEW
  • Now IEC/EN/UL62368-1 CompliantNEW
  • 12 V / 0.5 A Fan Output
  • Thermal Shut-Down feature
  • Shall be approved to EN60601-1 2rd Edition
  • MTBF : >3M hours as per Telcordia SR-332, issue 3
  • Approved with metal enclosures/accessories
Input Specifications
Input Voltage 90-264 VAC/390 VDC, Universal
(Derate from 100 % at 115VAC to 78 % at 90VAC)                                     
Input Frequency 47-63 Hz
Input Current 6.0 A max @ 115 VAC and 3.0 A max @ 230 VAC
No Load Power < 0.5W @ 115VAC and < 0.7W @ 230VAC
Inrush Current 25 A @ 115 VAC; 45 A @ 230 VAC; 75 A @ 264 VAC
Output Specifications
Output Voltage From 12V to 58V (Refer model number matrix table)                                                                                
Output Power up to 550W (Forced Air Cooled)
up to 250W (Conduction Cooled)
up to 150W (Convection Cooled)
Output Voltage Adjustability +/-3 %
Hold-up Time Full Load > 16 ms typical Convection Load > 55 ms typical Conduction Load > 30ms typical
Line Regulation +/-0.5 %
Load Regulation +/-1 %
Minimum Load 0.0 A
Transient Response max excursion 5 %; 50-100 % step load change at 0.1A/uS slew rate, 50 % duty cycle, 50/60Hz, recovery time < 5 ms.
Ripple1 1.0 % max for all outputs, 2 % max for 12V & 15V.
Rise Time 55 ms typical
Set Point Tolerance +/-1 %
Over Current Protection >110 % , Hiccup mode / Auto Recovery
Over Voltage Protection 110 to 140 % , Hiccup mode / Auto Recovery
Short Circuit Protection Hiccup mode / Auto Recovery
Cooling Up to 150W max with Convection Cooled (refer Derating Curve)
Up to 250W max with Conduction Cooled (refer Derating Curve)
Up to 550W max with 400 LFM Forced Air Cooled (refer Derating Curve)
General Specifications
Efficiency 92 % (48V), 91 % (24V), 90 % (12V,15V) typical @ 230VAC full load                                 
Isolation Voltage Input to Output – 4000 VDC for ITE application
Input to GND - 2500 VDC
Power Factor Exceeds 0.95 with Full Load
Switching Frequency PFC – 70 to 130 KHz ,Resonant – 68 to 80 KHz
Leakage Current < 200uA @115 VAC and < 400uA @ 230 VAC
Dimensions 5 x 3 x 1.5 inches
(127 x 76.2x 38.1 mm)
Weight 500 gm approx
Environmental Specifications
Operating Temperature - 40 to +70°C, (-40 to 0°C startup is guaranteed with spec deviation)2                                                
Storage Temperature -40 to +85°C
Relative Humidity 5 % to 95 %, noncondensing
Altitude Operating: 16,000 ft.; Non-operating: 40,000 ft
Model Number Power Voltage Max. Load
(Convection) 		Max. Load3
(Conduction)		 Max. Load
(400 LFM)
WLC550-1012500 W12 V9.17 A16.67 A41.67 A
WLC550-1015500 W15 V7.33 A13.33 A33.33 A
WLC550-1024550 W24 V6.25 A10.42 A22.92 A
WLC550-1030550 W30 V5.00 A8.33 A18.33 A
WLC550-1048550 W48 V3.13 A5.21 A11.46 A
WLC550-1058550 W58 V2.59 A4.31 A9.48 A
Add Suffix 'O' for Remote On/Off option (example: LFWLC550-1030-O)
For Power supply unit with L bracet (metal accessory option) add "-L" suffix at the end of model number
For Power supply unit with U channel (metal accessory option) add "-U" suffix at the end of model number
For Power supply unit with CK Cover kit (metal accessory option) add "-CK" suffix at the end of model number
For Power supply unit with CK Cover kit with FAN (metal accessory option) add "-CKF" suffix at the end of model name
General Notes:
  • Combined output power of main output, fan supply shall not exceed max. Power rating.
  • Fan supply output voltage tolerance including set point accuracy, line and load regulation is +/-10 % and Ripple and noise is less than 10 %.
  • Specifications are for nominal input voltage, 25°C unless otherwise stated.
  • Thermal shutdown feature : The power supply goes in hiccup mode when the temperature of Substrate PCB exceeds 110 °C (+/-10 °C).
Notes:
  1. Ripple is peak to peak with 20 MHz bandwidth and 10 μF (Electrolytic capacitor) in parallel with a 0.1 μF capacitor at rated line voltage and load ranges.
  2. Output ripple can be more than 10 % of the output voltage.
  3. Refer "Recommended Conduction Plate & Clearance" details in Mechanical Specifications section.
Signals
WLC550
Note: External Supply voltage can be changed with pre Information
Derating Curve
WLC550-1 De-rate linearly from 100 % 115 VAC to 78 % at 90 VAC

WLC550-2
 Convection load: 110W up to 50 °C
De-rate above 50 °C @ 2.5% per °C

Conduction load: 200W up to 50 °C
De-rate above 50 °C @ 2.5 % per °C

Forced air cooled load : 500W up to 50°C
De-rate above 50 °C @ 2.5 % per °C
WLC550-2
 Convection load: 150W up to 50 °C
De-rate above 50 °C @ 2.5 % per °C

Conduction load: 250W up to 50 °C
De-rate above 50 °C @ 2.5 % per °C

Forced air cooled load : 550W up to 50°C
De-rate above 50 °C @ 2.5 % per °C
EMC
Parameter Conditions/Description Criteria
Conducted Emissions EN55032-B, CISPR22-B, FCC PART15-B Pass
Radiated Emissions EN 55032 A Pass
Level B with external core (King core K5B RC 25x12x15-M in input cable)
Input Current Harmonics EN 61000-3-2 Class D
Voltage Fluctuation and Flicker EN 61000-3-3 Pass
ESD Immunity EN 61000-4-2 Level 3, Criterion A
Radiated Field Immunity EN 61000-4-3 Level 3, Criterion A
Electrical Fast Transient Immunity EN 61000-4-4 Level 3, Criterion A
Surge Immunity EN 61000-4-5 Level 3, Criterion A
Conducted Immunity EN 61000-4-6 Level 3, Criterion A
Magnetic Field Immunity EN 61000-4-8 Level 3, Criterion A
Voltage dips, interruptions EN 61000-4-11 Criterion A & B
Safety
CE Mark Complies with LVD Directive
Safety Standard(s) IEC 62368-1:2018,
EN 62368-1:2014;A11, EN 60950-1:2006;A11;A1;A12;A2
UL 62368-1 & CAN/CSA C22.2 No. 62368-1:19, UL 60950-1 and CAN/CSA C22.2 No. 60950-1-07
Approval Agency Nemko, UL, C-UL
Safety File Number(s) UL Certificate No : E515384-A6003-UL CB Test Certificate No : NO112396 Nemko Certificate No : P20224603
Downloads
CB Class - I Certificate
NEMKO Class - I Certificate
UL Class - I Certificate
Mechanical Specifications
AC Input Connector (J1) JST : B3P-VH-B(LF)(SN) or equivalent
Mating: VHR-3M or equivalent Pins : SVH-41T-P1.1 or equivalent		 Pin 1
Pin 2
Pin 3 		AC LINE
NOT FITTED
AC NEUTRAL
DC Output Connector (J2)
(Screw Terminal)		 6-32 inches Screw Pan HD
Mating: Designed to accept Ring Tongue Terminal AMP : 8-31886-1,
wherein one 16 AWG(max) wire can be crimped.
Note : One Ring Tongue Terminal with 16 AWG is recommended for current up to 11A only.
Use multiple tongue terminals with wire for more current.		 Pin 1,
Pin 2 		V1 +VE
V1 -VE
Aux (Fan) Output(J3) AMP :640456-2
Mating: 640440-2 		Pin 1
Pin 2		 FAN +VE
FAN -VE
Remote On/Off (J21) AMP :640456-2
Mating: 640440-2 		Pin 1
Pin 2		 +VE (External)
-VE (External)
EARTH (J4)
 Molex: 19705-4301
Mating: 19003-0001
Maximum Operating Temperature
For reliable and safe operation, please make sure the maximum component temperatures given in table below is not exceeded.
mwlc550-1
Ident no Description Max Temp Allowed
(°C)
1 Common mode chokes 95
2 Input Bulk Capacitors 90
3 Differential choke 110
4 Boost Choke 110
5 Output Transformer 125 (for 12V & 15V)
110 (for 24V,30V,48V,58V)
6 Output Capacitor 90
7 Bridge Rectifier 120
8 Aluminium Clad PCB 105
9 Output Rectifiers 110
Recommended Conduction Plate & Clearance
Conduction power rating mentioned in the table is with additional aluminium base plate of 3 mm thickness with 177.8mm(7in) length & 101.6mm(4in) width. Clearance of minimum 15 mm above the component height is recommended for better thermal management.
MWLC550-2
Mounting Option
MWLC550-3
Mechnical Drawing
MWLC550-4
Mechnical Drawing
WLC550 series with L Bracket
Mechnical Drawing
WLC550 series with U channel
Mechnical Drawing
WLC550 series with Cover kit
Mechnical Drawing
WLC550 series with Cover kit with FAN
    General Notes: In case the PCB is mounted in a metal enclosure, using metal hardware ensure the following
  1. Stand off, used to mount PCB has OD of 5.4 mm max.
  2. Screws, used to fix PCB on stand off, have head dia of 6.0 mm max.
  3. Washer, if used, to have dia of 6.5 mm max.
Mechnical Drawing
WLC550 series with Remote on/off
Approvals
Certificate Standard Downloads
CB Class - I Certificate IEC 62368-1:2018
IEC 60950-1(ed.2);am1;am2
Nemko Class - I Certificate EN 62368-1:2014;A11
EN 60950-1:2014;A11
UL Class - I Certificate UL 62368-1 & CAN/CSA C22.2 No. 62368-1:19
UL 60950-1 and CAN/CSA C22.2 No. 60950-1-07

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