User Manual

International Safety Standard Approvals
VDE0805/EN60950/IEC950/IEC1010
File No. 10401-3336-1044 Licence No. 2559, 1651
UL1950 File No. E136005
CSA C22.2 No. 950 File No. LR41062C
NFS25 SERIES
Dual and triple output
[ 2 YEAR WARRANTY ]
• 5.0 x 3.0 x 1.2 inch package (1U applications)
• Industry standard package
• Overvoltage and short circuit protection
• 25W with free air convection cooling
• EN55022, EN55011 conducted emissions level A
• UL, VDE and CSA safety approvals
The NFS25 series is a 25W 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 1U
applications. The NFS25 series is available with a wide range of models in the
industry standard 5 x 3 inch footprint and has proven itself to be reliable and
versatile product for a wide range of communication and industrial applications.
The NFS25 provides 25W of output power with free air convection cooling
which can be boosted to 30W with 20CFM of air. Standard features include OVP
and short circuit protection. The series, with full international safety approval
and the CE mark, meets conducted emissions EN55022 level A. The NFS25
series is designed for use in low power data networking, computer, telecom and
industrial applications such as wireless switchers, hubs, POS terminals, PABX's
and machine control. This list is not exclusive as the generic feature of the
series with industry standard output configurations provide a solution for most
high volume applications including many industrial applications.
SPECIFICATION
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
PAGE 18
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 110VAC input 16ms
230VAC input 80ms
Efficiency 25W output 70% typical
Isolation voltage Input/output 3000VAC
Input/chassis 1500VAC
Switching frequency Variable
Approvals and IEC950, IEC1010, EN60950
standards UL1950, VDE0805
(See Note 10) CSA C22.2 No. 950
Weight 280g (9.6oz)
MTBF (See Note 9) MIL-HDBK-217E, 25°C 170,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance 0°C to 50°C ambient, 25W max.
(See Notes 6, 7, 8) convection cooled
50°C to +70°C ambient Derate to
convection cooled 50% load
Peak (0°C to +50°C, 35W
max. 60 seconds)
Non-operating –40°C to +85°C
Relative humidity Non-condensing 5% to 95% RH
Altitude Operating 10,000 feet max.
Non-operating 30,000 feet max.
Vibration Random vibration 2.4G rms approx.
Three orthogonal axes 5Hz to 500Hz
10 min. test per axis
OUTPUT SPECIFICATIONS
Output power Continuous 25W
(See Note 2) Peak (60s) 35W
Line regulation Main output (Output 1) ±0.2%, max.
LL to HL, FL Output 2 ±1%, max.
Output 3 ±0.2%, max.
Total regulation Main output (Output 1) ±2.0%, max.
(See Notes 4, 5) Auxiliary output 2 see table
Auxiliary output 3 see table
Overshoot/undershoot At turn-on 0%
Transient response +5V ±120mV max. dev.
(1.5 to 3A step) 500µs recovery
Temperature coefficient All outputs ±0.02%/°C, max.
Overvoltage protection +5V output 6.25V ±0.75V
Output power limit Primary power 60W Pin limit, max.
limited 35W Pout limit, min.
Short circuit protection Continuous
INPUT SPECIFICATIONS
Input voltage range Universal input 85 to 264VAC
120 to 370VDC
Input frequency range 47 to 440Hz
Input surge current 110VAC, cold start 15A max.
230VAC, cold start 32A max.
Safety ground 132VAC, 60Hz 0.62mA, max.
leakage current 264VAC, 50Hz 1mA max.