SPECIFICATION
• CE Marked - LVD
• 85 - 264 V AC Universal Input
• Single, Dual, Triple & Quad Outputs
• Optional Safety Covers
• Medical Approved Versions
• High Reliability
• International Safety Approvals
Input voltage • 85-264 V AC (120-370 V DC)
Input Frequency • 47-440 Hz
Inrush Current • 32 A max at 230 V AC input on ‘cold start’
Hold Up Time • 75 ms typical at 240 V AC max load
Output Voltage • See Table, main output and some auxiliary outputs adjustable (not NFS25)
Line Regulation • NFS 25 ±0.2% (1% O/P B), NFS 40/75 ±0.5%, NFS 42/50 ±0.3%,
NFS 80/110 ±0.1%
Load Regulation • See Tables
Ripple and Noise • See Tables
Short Circuit and
Overload Protection • Overall Power Limit
Overvoltage Protection • On + 5 V output and single output - shuts unit down
Efficiency • 70% typical
Operating Temperature • 0 °C to +70 ºC Derate above +50 ºC @ 2.5%/ºC
NFS 110 requires forced air cooling see Table
Storage Temperature • -40 °C to +85 ºC
Temperature Coefficient • 0.02%/ºC
Relative Humidity • 5 to 95% non condensing
Vibration • 0.75 G pk over 5 Hz to 500 Hz for 5 min on 3 axis.
EM C • FCC, VDE 0871 curve B, NFS 42, 50, 80 & 110, EN55022 curve B conducted noise
FCC, VDE 0871 curve A, NFS 25, 40, 75, & 110, medical spec.
Safety Approvals • UL1950 recognised, CSA certified, LVD compliant
(standard models) EN60590/IEC950/IEC1010 approved (NFS75 not IEC1010)
BS6301 approved - most models, contact office for file numbers
Safety Approvals • UL2601 (NFS40 & NFS110), UL544 (NFS50), patient connect applications
(medical models) CSA22.2 - 125 certified - File No 41062, patient connect applications
IEC 601/VDE 0750 - File No 2559 (NFS40), 2874(NFS110), non critical non
patient connect applications.
MTBF • See Notes on each model
Universal AC Input Switchers
NFS SERIES 25-110 Watts
Tel: +44 (0)118 984 5515 Tel: +49 (0)700 9977 1000
UK D
** Medical Approved versions available - replace - 76xx with - 79xx
PIN CONNECTIONS
MECHANICAL DETAILS - 25 & 40 WATT MODELS
3.15 A, 250 V AC
J1 NFS25-7608/28/29 NFS40-7607/8/28 NFS40-7610 NFS40-7605 NFS40-7612 NFS40-7615 NFS40-7624
Pin 1 AC Live AC Live AC Live AC Live AC Live AC Live AC Live
Pin 2 AC Neutral AC Neutral AC Neutral AC Neutral AC Neutral AC Neutral AC Neutral
J2
Pin 1 +12 V +12 V +15 V +5 V +12 V +15 V +24 V
Pin 2 +5 V +5 V +5 V +5 V +12 V +15 V +24 V
Pin 3 +5 V +5 V +5 V +5 V +12 V +15 V +24 V
Pin 4 Return Return Return Return Return Return Return
Pin 5 Return Return Return Return Return Return Return
Pin 6 –12 V (NC/29) –5 V/–12 V –15 V Return Return Return Return
P1
Pin 1 Safety Earth Ground
Output Output Output Currents Ripple Total Model
Power Voltage Minimum(10)(11) Maximum(1) Maximum(2) Peak(3) P-P(4) Regulation(5) Number
+5.1 V (A) 0 A 2.00 A - 5.0 A 50 mV ±2%
25 W +12.0 V (B) 0 A 1.50 A - 3.0 A 120 mV ±5% NFS25-7608
–12.0 V 0 A 0.20 A - - 120 mV ±5%
+5.1 V 0 A 2.00 A - 5.0 A 50 mV ±2%
25 W +12.0 V 0 A 0.20 A - 1.0 A 120 mV ±2% NFS25-7628(6)
–12.0 V 0 A 0.20 A - - 120 mV ±2%
25 W +5.1 V (A) 0 A 2.00 A - 5.0 A 50 mV ±2% NFS25-7629
+12.0 V (B) 0 A 1.50 A - 3.0 A 120 mV ±5%
+5.1 V (A) 0 A 3.00 A 5.00 A 7.0 A 50 mV ±2%
40 W +12.0 V (B) 0 A 2.00 A 2.00 A 3.0 A 120 mV ±5% NFS40-7607
–5.0 V 0 A 0.35 A 0.50 A - 50 mV ±5%
+5.1 V (A) 0 A 3.00 A 5.00 A 7.0 A 50 mV ±2%
40 W +12.0 V (B) 0 A 2.00 A 2.00 A 3.0 A 120 mV ±5% NFS40-7608**
–12.0 V 0 A 0.35 A 0.50 A - 120 mV ±5%
+5.0 V 0 A 4.00 A 5.00 A 7.0 A 50 mV ±2%
40 W +12.0 V 0 A 0.35 A 0.50 A - 120 mV ±5% NFS40-7628(6)
–12.0 V 0 A 0.35 A 0.50 A - 120 mV ±5%
+5.0 V (A) 0 A 3.00 A 5.00 A 7.0 A 50 mV ±2%
40 W +15.0 V (B) 0 A 2.00 A 2.00 A 2.5 A 150 mV +10%/–3% NFS40-7610**
–15.0 V 0 A 0.35 A 0.50 A - 150 mV ±5%
40 W +5.0 V 0 A 6.00 A 8.00 A 12.0 A 100 mV ±2% NFS40-7605**
40 W +12.0 V 0 A 3.30 A 4.00 A 5.0 A 120 mV ±2% NFS40-7612**
40 W +15.0 V 0 A 2.60 A 3.30 A 4.0 A 150 mV ±2% NFS40-7615**
40 W +24.0 V 0 A 1.60 A 2.00 A 2.5 A 240 mV ±2% NFS40-7624**
OUTPUT VOLTAGE & CURRENT RATINGS - 25 AND 40 W MODELS
1. Natural convection cooled.
2. Forced air, 20 CFM at 1 atmosphere, 50 W maximum.
3. NFS 25 - Peak output current lasting less than 60 seconds with duty cycle less than 5%.
NFS 40 - Peak output current lasting less than 30 seconds with duty cycle less than 10%.
During peak loading, outputs may go outside of total regulation limits.
4. 50 MHz bandwidth, peak to peak, measured differentially.
5. Total Regulation is defined as the static output regulation at 25 °C, including initial tolerance, line voltage within stated limits, load currents within stated
limits, and output voltages adjusted to their factory
settings. Also, 0.5≤I(A)/I(B)≤3 for NFS 25 and 0.25≤I(A)/I(B) ≤5 for NFS 40 to maintain stated regulation.
6. The NFS25&40-7628 have a separately regulated +12 V output. The loading condition in note (5) does not apply.
7. In order to meet VDE safety requirements, a non-metallic standoff is mandatory for one hole as specified in the mechanical drawing (below).
8. The ground pad of the mounting hole near P1 allows system grounding through a metal standoff.
9. To improve EMI/RFI Conducted noise, the ground pad of the mounting hole near the output connector should be connected with the ground pad of the
mounting hole near P1. Use metal standoffs attached to a common metal chassis. This connection also significantly attenuates common mode noise.
10. MTBF 170,00 Hrs to MIL217E with 4w min load.
11. A min load of 0.5 A required on +5 output to obtain full current from the negative output.
1. Other output voltage versions available. Consult office
for details.
2. AC mating connector is Molex 09-50-3031 with Molex
08-50-0105 crimp terminal. DC mating connector is
Molex 09-91-0600 with Molex 08-50-0105 crimp
terminal.
3. Mating connector kits available, order Part No. 25/40W CON KIT
4. No minimum load is required for operation, see 10 & 11 above.
5. Power sharing between outputs is possible, contact
sales office for details.
6. A standard L-bracket and cover is available for
mounting which contains all screws, connectors and
necessary hardware.
AC - DC Power Supplies Universal AC Input Switchers 25-110 Watts NFS Series
Website: www.xpplc.com E-mail: sales@xpplc.com
** Medical approved version available – model no. NFS50-7908
1. Convection Cooled. 5. (continued) To achieve stated regulation following applies:
2. Forced Air, 20 CFM at 1 Atmosphere. NFS 42-7608 : 0.25≤x≤5
3. Peak outputs lasting less than one minute with duty factor less than 5%. NFS 42-7627 : 0.5≤x≤12
During peak loading, output may go outside of total regulation limits. NFS 42-7610 : 0.3≤x≤12
4. 50 MHz bandwidth, peak to peak, measured differentially. NFS 50-7608/08M : x≤5
5. Total Regulation is defined as the static output regulation at 25 °C including NFS 50-7610/01 : x≤5
initial tolerance, line voltage within stated limits, load currents within stated where x= l1
limits, and output voltages adjusted to their factory setting. l2
6. MTBF 230,000 hrs (NFS 42), 160,000 hrs (NFS 50) with 5 W
min load
MECHANICAL DETAILS – 40 & 50 WATT MODELS
Pin Connections NFS42 – 7608/10/27, NFS50 – 7608/10
AC Mating Connector – Molex 09-50-3031 with Molex 08-50-0105 crimp terminal
DC Mating Connector – Molex 22-01-1403 with Molex 08-50-0031 crimp terminal
Mating Connector kit available, order Part No. NFS42/50 CON KIT
J1 NFS42-7608 NFS42-7627 NFS42-7610
NFS50-7608 – NFS50-7610
Pin 1 AC Live AC Live AC Live
Pin 2 AC Neutral AC Neutral AC Neutral
J2, J3, J4
Pin 1 –12 V –12 V –15 V
Pin 2 +12 V +24 V +15 V
Pin 3 Retur n Return Return
Pin 4 +5 V +5 V +5 V
J5
Pin 1 Ground Ground Ground
Safety Covers available
Pin Connections NFS50 – 7608M/7601
AC Mating Connector as NFS50-7608
DC Mating Connector – Molex 09-91-0600 with Molex 08-50-0105 crimp terminal
Mating Connector kit available, order Part No. NFS42/50 CON KIT
J1 NFS50-7608 NFS50-7601
Pin 1 AC Neutral AC Neutral
Pin 2 AC Live AC Live
J2
Pin 1 12 V Return –12 V
Pin 2 12 V (Floating) –5 V
Pin 3 +12 V +12 V
Pin 4 +5 V +5 V
Pin 5 Return Return
Pin 6 Return Return
Safety Covers available
Alternative Connector for NFS50-7608
The NFS50-7608 is also available with vertical Molex connector, designated NFS50-7608M. Electrical specifications are the same with the exception that the third output
(12 V) is floating. The auxiliaries can therefore be configured as + 12≥+ 12 V, +12≥– 12 V, or +24 V. When used to provide +24 V output we recommend fitting a 1N4001
diode across the isolated 12 V O/P to prevent damage to the 12 V regulator.
mm mm
Output Output Output Currents Ripple Total Model
Power Voltage Minimum(6) Maximum(1) Maximum(2) Peak(3) Pk-Pk(4) Regulation(5) Number
+5.1 V(I1) 0 A 2.5 A 3.5 A 5.0 A 50 mV ±3%
40 W +12 V (l2) 0 A 2.0 A 2.5 A 4.0 A 120 mV ±5% NFS42-7608
–12 V 0 A 0.2 A 0.3 A 0.7 A 120 mV ±5%
+5.1 V(I1) 0 A 2.5 A 3.5 A 5.0 A 50 mV ±3%
40 W +24 V (l2) 0 A 1.0 A 1.2 A 3.0 A 240 mV ±5% NFS42-7627
–12 V 0 A 0.2 A 0.3 A 0.7 A 120 mV ±5%
+5.1 V(I1) 0 A 2.5 A 3.5 A 5.0 A 50 mV ±3%
40 W +15 V (l2) 0 A 1.6 A 2.0 A 3.0 A 150 mV ±5% NFS42-7610
–15 V 0 A 0.2 A 0.3 A 0.7 A 150 mV ±5%
+5.1 V(I1) 0 A 5.0 A 7.0 A 7.0 A 50 mV ±2.5%
50 W +12 V (l2) 0 A 2.0 A 2.5 A 5.0 A 120 mV ±5% NFS50-7608**
–12 V 0 A 0.5 A 0.7 A 1.0 A 120 mV ±5%
+5.1 V(I1) 0 A 5.0 A 7.0 A 7.0 A 50 mV ±2.5%
50 W +12 V (l2) 0 A 2.0 A 2.5 A 5.0 A 120 mV ±5% NFS50-7608M
12 V isolated 0 A 0.5 A 0.7 A 1.0 A 120 mV ±5%
+5.1 V(I1) 0 A 4.5 A 5.5 A 6.5 A 50 mV ±2.5%
50 W +15 V (l2) 0 A 1.0 A 1.5 A 2.0 A 120 mV ±5% NFS50-7610
–15 V 0 A 0.6 A 0.8 A 1.0 A 120 mV ±5%
50 W
+5.1 V(I1) 0 A 5.0 A 7.0 A 7.0 A 50 mV ±2.5%
NFS50-7601
+12 V (l2) 0 A 2.0 A 2.5 A 5.0 A 120 mV ±5%
–12 V 0 A 0.5 A 0.7 A 1.0 A 120 mV ±5%
–5 V 0 A 0.5 A 0.5 A 0.5 A 90 mV ±5%
OUTPUT VOLTAGE & CURRENT RATINGS - 40 & 50 W MODELS
Tel: +44 (0)118 984 5515 Tel: +49 (0)700 9977 1000
UK D
MECHANICAL DETAILS – 75 & 110 WATT MODELS
* Pins 10 and 11 are floating output, which can be referenced as +ve or –ve. Pin 10 is +ve with
respect to pin 11. Either pin must be connected to 0 V (pins 4-7) for proper operation.
AC mating connector is Molex 09-91-0500
DC mating connector is Molex 09-91-1300 Crimp Terminals – Molex Series 2878
AC - DC Power Supplies Universal AC Input Switchers 25-110 Watts NFS Series
OUTPUT VOLTAGE & CURRENT RATINGS - 75 & 110 WATT MODELS
Maximum Output Output Currents Ripple Total Model
Power(1) Voltage Minimum Maximum(1) Maximum(2) Peak(3) P-P(4) Regulation(5)(6) Number
+5 V 2.0 A 5.0 A 5.0 A 10.0 A 50 mV ±1%
75 W +12 V 0.5 A 3.0 A 3.0 A 6.0 A 120 mV ±5% NFS75-7608
–12 V 0.0 A 1.0 A 1.0 A 1.5 A 120 mV ±5%
110 W(1)
+5 V (A) 1.0 A 8.0 A 12.0 A 20.0 A 50 mV ±2%
NFS80-7602
+24 V (B) 0.0 A 2.0 A 2.5 A 3.0 A 240 mV +10%/–5%
+12 V (C) 0.0 A 2.5 A 3.0 A 6.0 A 120 mV ±3%
12 V (D)(8) 0.0 A 2.5 A 3.0 A 6.0 A 120 mV ±3%
110 W(1)
+5 V (A) 1.0 A 8.0 A 12.0 A 20.0 A 50 mV ±2%
NFS80-7606
+24 V (B) 0.0 A 2.0 A 2.5 A 3.0 A 240 mV +10%/–5%
+15 V (C) 0.0 A 2.5 A 3.0 A 6.0 A 150 mV ±3%
15 V (D)(8) 0.0 A 2.5 A 3.0 A 6.0 A 150 mV ±3%
110 W
+5.1 V 0.0 A 8.0 A 10.0 A 20.0 A 50 mV ±2%
+12.0 V 0.0 A 4.5 A 5.0 A 9.0 A 120 mV ±3% NFS110-7601P*
–12.0 V 0.0 A 0.5 A 1.0 A 1.5 A 120 mV ±3%
–5.0 V 0.0 A 0.5 A 1.0 A 1.5 A 50 mV ±3%
110 W
+5.1 V (A) 0.0 A 8.0 A 10.0 A 20.0 A 50 mV ±2%
NFS110-7602P*
+24.0 V (B) 0.0 A 3.5 A 4.5 A 4.5 A 240 mV +10%/–5%
+12.0 V 0.0 A 4.5 A 5.0 A 9.0 A 120 mV ±3%
–12.0 V 0.0 A 0.5 A 1.0 A 1.5 A 120 mV ±3%
110 W
+5.1 V 0.0 A 8.0 A 10.0 A 20.0 A 50 mV ±2%
NFS110-7604P*
+15.0 V 0.0 A 4.0 A 5.0 A 7.5 A 150 mV ±3%
–15.0 V 0.0 A 0.5 A 1.0 A 1.5 A 150 mV ±3%
–5.0 V 0.0 A 0.5 A 1.0 A 1.5 A 50 mV ±3%
110 W 5.1 V 0.0 A 16.0 A 20.0 A 22.0 A 50 mV ±2% NFS110-7605*
110 W 12 to 14 V 0.0 A 7.0 A 9.0 A 9.0 A 120 mV ±2% NFS110-7612*
110 W 15 to 18 V 0.0 A 5.0 A 7.3 A 7.3 A 150 mV ±2% NFS110-7615*
110 W 24 to 30 V 0.0 A 3.5 A 4.5 A 4.5 A 240 mV ±2% NFS110-7624*
Medical Approved versions available on models marked with *– replace – 76xx with – 79xx
1. Natural convection cooled, 80 W maximum.
2. Forced air, 20 CFM at 1 atmosphere, 110 W Maximum.
3. Peak output current lasting less than 60 seconds with duty cycle less than 10% total peak power must not exceed 75 W/110 W.
4. 50 MHz bandwidth, peak to peak, measured differentially.
5. Total Regulation is defined as the static output regulation at 25 °C, including initial tolerance, line voltage within stated limited, load current within stated
limits, and output voltages, adjusted to their factory settings.
6. For 7602 model l(A)/l(B) <5.0 for stated regulation on +24 V output. The +24 V output will maintain ±5% regulation if l(A) ≤5 A.
7. MTBF 50,000 hrs (NFS 75), 125,000 hrs (NFS 80 & NFS 110) with 11 W min load.
8. Output D is floating and must be referenced as positive or negative, by connecting to common 0 V pins 4-7.
Pin Connections
J1 NFS75-7608
1 NEUTRAL
2LIVE
3 GROUND
J2
1,2 +5 V
3,4 0 V
5 –12 V
6,7,8 0 V
9,10 +12 V
AC Mating Connector is Molex 09-91-0500
DC Mating Connector is Molex 09-91-1000
Crimp Terminals – Molex series 2878
No Safety Cover available
J1 NFS80-76XX NFS110-MULTI NFS110-SINGLE
1 GROUND GROUND GROUND
2 NEUTRAL NEUTRAL NEUTRAL
3 LIVE LIVE LIVE
J2
1,2,3 +5 V +5 V + OUT
4,5,6,7 0 V 0 V 0 V
8,9 +12 V/+15 V +12 V/+15 V + OUT
10 -12/-15 Ret* P.F. N.C.
11 -12 V/-15 V* –12 V/–15 V N.C.
12 key key key
13 +24 V –5 V/+24 V N.C.
NFS75 & NFS110
Overall height is 1.9 max (48.3)
Dimensions in inches (mm)
NFS75 Model
NFS110 Model
Pin Connections
Website: www.xpplc.com E-mail: sales@xpplc.com
