 
© TT Electronics plc 
General Note  
All data sheets are subject to change without noce. 
TT Electronics | Power Partners, Inc 
43 Broad Street Suite B206, Hudson, MA 01749, USA. t: +1 (978) 567-9600   
SL-xxx-xxx   ISS.6    22/07/2020  Page: 1 
Descripon: 
The PM651 series of AC-DC switching power supplies in a package of 4 x 8 x 2.58 inches are capable of delivering 600-650 
was of connuous power at 30 CFM forced air cooling. The units are constructed on a printed circuit board with a U– 
bracket for mechanical support and heat sinking. A cover and fan assembly can be added during manufacturing. They are 
designed for medical applicaons including those needing BF rated insulaon and/or an operaon altude up to 5000 
meters   
 
Features: 
•  BF class insulaon  
•  Operaon altude up to 5000 meters 
•  100-240 VAC input with acve PFC  
•  Less than 300  μA leakage current  
•  Standby output 5VDC at 200mA 
•  EN55011 Class B conducted emissions 
•  Inhibit– TTL high to disable output  
•  Compliant with RoHS requirements  
Model
1 
Output
 
Eciency 
(typical) 
115/230VAC 
V1 
Min. 
Current
4 
Max. Current 
at convecon 
Max. Current 
At 30 CFM 
Tol. 
Ripple & 
Noise
3 
Max. Output 
Power
2 
PM651-12B  12V  0.1A  50A  55A  ±2%  120mV  600W  88/90% 
PM651-13B  15V  0.1A  40A  44A  ±2%  150mV  600W  88/90% 
PM651-13-1B  18V  0.1A  36.12A  40A  ±2%  180mV  650W  88/90% 
PM651-14B  24V  0.1A  27.09A  30A  ±2%  240mV  650W  88/90% 
PM651-15B  28V  0.1A  23.22A  25.5A  ±2%  280mV  650W  89/91% 
PM4651-16B  30V  0.1A  21.67A  23.8A  ±2%  300mV  650W  89/91% 
PM651-16-1B  32V  0.1A  20.32A  22.4A  ±2%  320mV  650W  89/91% 
PM651-17-1B  34V  0.1A  19.12A  21A  ±2%  340mV  650W  89/91% 
PM651-17B  36V  0.1A  18.06A  20A  ±2%  360mV  650W  89/91% 
PM651-18B  48V  0.1A  13.55A  15A  ±2%  480mV  650W  89/91% 
PM651-19B  57V  0.1A  11.41A  12.5A  ±2%  570mV  650W  89/91% 
PM651-19-1B  58V  0.1A  11.21A  12.3A  ±2%  580mV  650W  89/91% 
NOTES:  
1.  Change sux “B” for U-Bracket form to “C” for enclosed form with cover and fan assembly, e.g. PM651-14C.  
2.  All models may be operated at no-load without damage. At no load, output voltage uctuates beyond 5% due to the burst-mode operaon of the 
control IC in them for energy saving.  
3.  600-650 W for “C” version, or with 30 CFM forced air provided by user for “B” version  
4.  Ripple and noise is maximum peak-to-peak voltage value measured at output within 20 MHz bandwidth, at rated line voltage and output load rang-
es, and with a 10 μF tantalum capacitor in parallel with a 0.1 μF ceramic capacitor across the output.  
5.  Peak output current with 10% duty cycle maximum for less than 15 seconds, average power not to exceed maximum power rang. 

General Note

All data sheets are subject to change without noce.

ISS.6 22/07/2020 Page: 2

TT Electronics | Power Partners, Inc

43 Broad Street Suite B206, Hudson, MA 01749, USA. t: +1 (978) 567-9600

Specicaons

Safety Standards & EMC Specicaons

Safety Standard Approvals

UL ES 60601-1, CSA C22.2 No. 60601-1 File No. E178020

TÜV EN 60601-1

CSA C22.2 No. 62368-1, CSA C22.2 No. 62368-1

TÜV EN 62368-1

EMI Standard EN55011, FCC and VCCI Class B Conducted, class B radiated

EMC Performance

EN61000-3-2: Harmonic Distoron, class A and D

EN61000-3-3: Line Flicker

EN61000-4-2: ESDN, ± 15KV air and ±8 KV contact

EN61000-4-3: Radiated immunity, 10 V/m

EN61000-4-4: Fast transient/ burst, ± 2 KV

EN61000-4-5: Surge, ±1 KV di, ± 2KV com

EN61000-4-6: Conducted Immunity, 10 Vms

EN61000-4-8: Magnec Field immunity, 30 A/m

EN61000-4-11: Voltage dip immunity, 30% reducon for 500 ms, 1005

reducon for 10 ms

*Consult with TT Electronics for informaon on addional country safety approvals

Input Specicaons

Input Voltage Range 90-264 VAC

Input Frequency Range 47-63Hz

Input Current 8.4 A (rms) @115 VAC, 60 Hz 4.2 A (rms) @ 230 VAC, 50 Hz

Earth leakage current 350 µA max. @ 264 VAC, 63 Hz

Touch current 100 µA max. @ 264 VAC, 63 Hz

Output Specicaons

Ripple and noise 1% peak to peak maximum

Remote Sense Compensaon for cable losses up to 0.5V

Overvoltage Protecon

Set at 115-140% of nominal output voltage , latching by recycle input to

reset

Short circuit protecon Automac recovery

Over temperature protecon Latching by recycle input to reset

Thermal Shutdown Protected to over temperature condions

Temperature Coecient All outputs ±0.04% /°C maximum

Transient Response

Maximum excursion of 4%, recovering to 1% of nal value within 500 us

aer a 25% step load change

Standby power 5V at 200mA maximum

Fan Power 12 V at 500 mA maximum

Environmental Specicaons

Operang Temperature -10 ° C to +70°C

Storage Temperature -40 ° C to + 85° C

Relave Humidity 5% to 95% condensing

Temperature Derang

Derate from 100% at +50°C linearly to 50% at +70℃, applicable to convec-

on and forced-air cooling condions

General Specicaons

Switching Frequency 55-300KHz

Power Factor >0.9

Eciency Typical 90%

Hold-up me 20 ms minimum at 100 VAC & 650 W

Line regulaon ±0.5% maximum at full load

Inrush current 20A @ 115VAC, or 40A @ 230VAC, at 25°C cold start

Withstand Voltage

4000 VDC from input to output (2 MOPP)

1500 VDC from input to ground (1 MOPP)

1500 VDC from output to ground

MTBF 190,000 hours at full load at 25°C ambient, calculated per MIL-HDBK-217F