TWM250 Series

250W Medical Grade AC/DC Power Supplies

TRUMPower

Tumbler Technologies + TRUMPower

3350 Scott Blvd., Building 13 • Santa Clara, California 95054, USA • 408-988-6616 • sales@trumpower.com • www.TRUMPower.com

ELECTRICAL SPECIFICATIONS

Input Voltage ........................ 90~264 VAC

Input Frequency ................... 47~63 Hz

Input Current ........................ 4A (rms) max. @ 115 VAC,

2A (rms) max. @ 230 VAC

Inrush Current ..................... 50A max. @ 115 VAC, 100A max.

@ 230 VAC at cold start +25°C

Earth Leakage Current ........ 300 µA max. @ 264 VAC, 63 Hz

Power Factor ....................... >0.95 @115 VAC, >0.9 @230 VAC

Output Power Ratings ......... See table

Output Voltage Regulation .. See table

Ripple and Noise ................ See table

STANDARDS & COMPLIANCES

EMC Standards ................... EN 60601-1-2, EN 55011 Class B,

FCC Part 18 Class B

Safety Standards ................. IEC/EN/UL 60601-1 3rd Edition,

Agency Approvals ................ CSA, CUS, TUV, CE, CB, FCC

Other Compliance ............... RoHS

FEATURES

• 90~264 VAC Universal Input

• 0.9 to 0.95 Power Factor

• 200W @ Convection or 250W @ 17.1 CFM

•

3" X 5" Footprint

•

IEC/EN/UL 60601-1 3rd Edition Approvals

GENERAL SPECIFICATIONS

Efficiency .................................. >85% at full load, 115 VAC

Switching Frequency ............... 53-58 KHz

Hold-up Time ........................... >10 ms @ 115 VAC, 250W load

Operating Temperature ........... 0°C to +70°C

Storage Temperature ............... -40°C to +85°C

Derating ................................... Derate linearly 2.5%/°C

Operating Humidity .................. 5% to 95% non-condensing

Short-Circuit Protection ........... Auto-recovery

Overload Protection ................. Set at 105% to 160% of the

maximum rating, Auto-recovery

Overvoltage Protection ............ Auto-recovery

Withstand Voltage .................... 4,000 VAC from input to output,

MTBF ........................................ >120K hours at full load and

25°C ambient temperature

calculated per MIL-HDBK-217F

Notes:

1. Standard form factor is PCB. For U-bracket models, add suffix "B" to the P/N, e.g. TWM250-24B, TWM250-48B, etc.

2. R&N are measured at 20 MHz bandwidth with a 47µF electrolytic capacitor and a 0.1µF ceramic capacitor in parallel.

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