EMERSON NFS110 Service Manual
Embedded Power for
Business-Critical Continuity
NFS110 Medical
Series
Single and
quad output
Special Features
• 7.0 x 4.25 x 1.8 inch package
• Medical, dental and
laboratory applications
• Overvoltage and short circuit
protection
• 110 W with 20 CFM
• UL, VDE and CSA safety
approvals
• EN60601-1 and UL2601
medical approvals
• Available RoHS compliant
• 2 year warranty
Total Power: 80 - 110 W
Input Voltage: 90 - 253 Vac
127 - 357 Vdc
# of Outputs: Single, quad
Safety
VDE0805/EN60601-1/
IEC601/IEC1010
File No. 10401-3336-1049
Licence No. 2874
UL2601 File No. E147937
CSA C22.2 No. 125
File No. LR41062C
Rev. 06.10.08
NFS110 Series
1 of 5
Electrical Specifications
Output
Voltage adjustability +5.1 V o/p on multi’s ±3.0%
5.1 V single output ±3.0%
12 V single output 12-14 V
15 V single output 15-18 V
24 V single output 24-30 V
Line regulation LL to HL, FL ±0.1% max.
All outputs on all units
Overshoot/undershoot At turn-on no lead 0%
Temperature coefficient All outputs ±0.02%/°C
Overvoltage protection Multi o/p 5.1 V only 6.25 V ±0.75 V
5.1 V single 6.25 V ±0.75 V
12 V single 15.75 V ±1.0 V
15 V single 22 V ±1.5 V
24 V single 33 V ±2.5 V
Output power limit Primary power Pin max. 160 W
limited Pout min. 110 W
Short circuit protection Burst mode operation
Input
Input voltage range 90-253 Vac
127-357 Vdc
Input frequency range 47-440 Hz
Input surge current 110 Vac. 50 Hz 17 A
230 Vac. 50 Hz 35 A
Safety ground leakage current 132 Vac 50 μA
264 Vac 100 μA
All specifications are typical at nominal input, full load at
25
°C unless otherwise stated
Rev. 06.10.08
NFS110 Series
2 of 5
Embedded Power for
Business-Critical Continuity
Environmental Specifications
Thermal performance Operating, see curve 0° C to +70 °C
(See notes 9, 10) Non-operating -40 °C to +85 °C
0 °C to 50 °C amb. convection cooled 80 W
+50 °C to +70 °C,
amb. convection cooled
Derate 2 W/°C
0 °C to +50 °C, 20 CFM forced air 110 W
+50 °C to +70 °C, 20CFM forced air Derate 2.75 W/°C
Peak, 0 °C to +50 °C, max. 60 seconds 110W
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 2.4 G rms peak
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 EN61000-4-3, level 3 Perf. criteria 1
Fast transients EN61000-4-4, level 3 Perf. criteria 1
Radiated immunity EN61000-4-5, level 3 Perf. criteria 2
Conducted immunity EN61000-4-6, level 3 Perf. criteria 2
General Specifications
Hold-up time 110 Vac @ 80 W 35 ms
110 Vac @ 110 W 17 ms
230 Vac @ 80 W 140 ms
230 Vac @ 110 W 100 ms
Efficiency Multiple outputs 70% typical
+5.1 V single 70% typical
12 V and 15 V singles 72% typical
24 V single 75% typical
Isolation voltage Input/output 4000 Vac
Input/chassis 1500 Vac
Approvals and standards
(see note 12)
VDE0750, IEC60601,
IEC1010, UL2601
CSA C22.2 No. 125
Weight Singles 550 g (19.4 oz)
Multiple outputs 600 g (21.2 oz)
MTBF (@25º C) MIL-HDBK-217E 125,000 hours min.
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