Artesyn NFS40 User Manual

The NFS40 medical series is a 40 W universal input ac-dc power
supply on a 5 x 3 inch card with a maximum component height of

1.2 inches for use in medical applications. The NFS40 medical
series has the same generic feature set as the standard NFS40
series but has been designed with lower safety ground leakage
and higher isolation as required for medical safety approval. The
NFS40 provides 40 W of output power with free air convection
cooling which can be boosted to 50 W with 20 CFM of air.
Standard features include overvoltage and short-circuit
protection. The series, with full medical safety approval to
EN60601 and UL2601 and the CE mark, meets conducted
emissions EN55022 level A. The NFS40 medical series is designed
for use in low power medical, dental and laboratory applications
such as dialysis machines, monitoring equipment,
instrumentation and infusion pump controls.

Embedded Power for
Business-Critical Continuity

NFS40 Series

SIngle and
triple output

Special Features

• 5.0 x 3.0 x 1.2 inch package
(1U applications)

• Industry standard package

• Overvoltage and
short circuit protection

• 40 W with free air convection

• EN55022, EN55011
conducted noise level A

• UL, VDE and CSA
safety approvals

• Available RoHS compliant

• 2 year warranty

Total Power: 40 - 50W
Input Voltage: 85 - 264VAC

120 - 370VDC

# of Outputs: Single, triple

Safety

The NFS40-79XXJ models are
approved to UL2601, CSA22.2 No.
125 and IEC601/VDE0750
standards. The NFS40-79XXJ
series is for use in ordinary,
patient-connect applications
under the UL2601 and CSA C22.2
No. 125 standards, and is
authorised for use in non-critical,
non-patient-connect applications
under the IEC601 standards.

Rev.02.15.07

NFS40 Medical

1 of 4

Rev.02.15.07

NFS40 Medical

2 of 4

Embedded Power for
Business-Critical Continuity

All specifications are typical at nominal input, full load at 25°C unless otherwise stated

Specifications

EMC CHARACTERISTICS

Conducted emissions EN55022, FCC part 15 Level A
Radiated emissions EN55022, FCC part 15 Level A
ESD air EN61000-4-2, level 3 Perf. criteria 1
ESD contact EN61000-4-2, level 4 Perf. criteria 1
Surge EN61000-4-5, level 3 Perf. criteria 1
Fast transients EN61000-4-4, level 3 Perf. criteria 1
Radiated immunity EN61000-4-3, level 3 Perf. criteria 2
Conducted immunity EN61000-4-6, level 3 Perf. criteria 1

GENERAL SPECIFICATIONS

Hold-up time 110 Vac 18 ms

230 Vac 132 ms

Efficiency 110 Vac, 230 Vac 70% typical

Isolation voltage Input/output 4000 Vac

Input/chassis 1500 Vac

Switching frequency 20-10 kHz

Approvals and VDE0750, IEC601
standards EN60601-1, UL2601
(See Note 12) CSA C22.2 No. 125

Weight 270 g (9.6 oz)

MTBF MIL-HDBK-217E 170,000 hours

ENVIRONMENTAL SPECIFICATIONS

Thermal performance Operating, see curve 0 °C to +70°C

Non-operating -40

°C to +85°C

0 ¡C to 50 ¡C ambient temp., 40 W
convection cooled
0 ¡C to 50 ¡C ambient, 50 W
20 CFM Forced air
50 ¡C to 70 ¡C ambient Derate linearly

to 50% load

Peak (30 seconds) 60 W

Relative humidity Non-condensing 5% to 95% RH

Altitude Operating 10,000 feet max.

Non-operating 40,000 feet max.

Vibration (See Note 11) 5-500 Hz 0.75 G peak

OUTPUT SPECIFICATIONS

Voltage adjustability +5 V output on triples ±5.0%

Vout on singles ±5.0%

Line regulation LL to HL, FL main output ±0.2%

LL to HL, FL auxiliary output ±1.0%

Overshoot/undershoot At turn-on 0%

Transient response +5 V ±120 mV max dev.

(1.5 A to 3 A step) 500 μs recovery

Temperature coefficient All outputs ±0.02%/°C

Overvoltage protection + 5V output 6.25 ±0.75 Vout

Minimum output current (See Note 10) 0 A

Output power limit Primary power limited 90 W input

power limit

Short circuit protection Single Continuous

Multiple Short term

INPUT SPECIFICATIONS

Input voltage range 85-264 Vac

120-370 Vdc

Input frequency range 47-440 Hz

Input surge current Cold start 110 Vac, 60 Hz 10 A

Cold start 230 Vac, 50 Hz 22 A

Safety ground 110 Vac, 60 Hz 18 μA max.
leakage current 230 Vac, 50 Hz 28 μA max.