PSS320 Series
320 Watt
Single Output
AC/DC Power Supply
FEATURES
● 2 Year Warranty
● Low Cost, High Reliability
● Fixed Switching Frequency
● Compact Size, Light Weight
● 100% Full Load Burn-In Tested
● Cooling Fan ON/OFF Auto Control
● Built-In EMI Filter, Low Ripple Noise
● AC Input Range Selectable by Switch
● Forced Air Cooling by Built-In DC Fan
● High Efficiency, Low Working Temperature
● Soft Start Circuit, Limiting AC Surge Current
● Short Circuit, Overload, Over Voltage, and Over Temperature Protected
SPECIFICATIONS: PSS320 Series
All specifications are based on 25oC, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
INPUT SPECIFICATIONS
Input Voltage Range
Input Frequency
88 ~ 132VAC / 176 ~ 264VAC auto switch (248 ~ 370VDC)
47 to 63Hz
AC Current (typical)
Inrush Current (typical)
Leakage Current
6A @ 115VAC
3.5A @ 230VAC
36A @ 230VAC
18A @ 115VAC
< 3.5mA @ 240VAC
OUTPUT SPECIFICATIONS
Output Voltage
See Table
See Table
Output Power
Voltage Tolerance (See Note 3)
Voltage Adjustment Range
Line Regulation
5V & 7.5V outputs: ±2.0%; 12V - 48V outputs: ±1.0%
See Table
±0.5%
Load Regulation
Output Current
5V & 7.5V outputs: ±1.0%; 12V - 48V outputs: ±0.5%
See Table
Ripple & Noise (max) (See Note 2)
Setup, Rise Time
5V - 24V outputs: 150mVp-p; 27V output: 200mVp-p; 48V output: 240mVp-p
2000ms, 20ms @ full load
24ms @ full load
Hold Up Time (typical)
Temperature Coefficient
PROTECTION
±0.03%/°C (0 ~ 50°C)
105 ~ 135% rated output power
Overload Protection
Protection Type: Hiccup mode, recovers automatically after fault condition is removed.
See Table
Over Voltage Protection
Protection Type: Hiccup mode, recovers automatically after fault condition is removed.
RTH1≥ 65°C Fan On, ≤ 55°C Fan Off, ≥ 70°C (5 ~ 15V)
RTH1≥ 70°C Fan On, ≤ 65°C Fan Off, ≥ 80°C (24 ~ 48V)
Protection Type: Hiccup mode, recovers automatically after fault condition is removed.
Fan Control, O.T.P
GENERAL SPECIFICATIONS
Switching Frequency
Efficiency
90KHz
See Table
Withstand Voltage
Isolation Resistance
ENVIRONMENTAL SPECIFICATIONS
Working Temperature
Storage Temperature
Working Humidity
Storage Humidity
Cooling
3000VAC (Input to Output), 1500VAC (Input to FG), 500VAC (Output to FG)
100MΩ/500DC (Input to Output, Input to FG, and Output to FG)
-10°C to +60°C (refer to output load derating curve)
-20°C to +85°C
20 ~ 90% RH non-condensing
10 ~ 95% RH
Forced air cooling by built-in DC fan.
10 ~ 500Hz, 2G 10min./1 cycle, 60min each along X, Y, Z axes.
188,700 hours min. @ 25°C (MIL-HDBK-217F)
Vibration
MTBF
PHYSICAL SPECIFICATIONS
Weight
1080 grams
215(L) x 115(W) x 50(H) mm
2 years
Dimensions
Warranty
SAFETY & EMC
Safety Standards
UL60950-1 approved
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797