Description
Product Resume
This power supply is ideally suited for use with amplifier projects. The regulated 12 VDC, 29A design is capable of delivering 350watts of output. Overload, over voltage, and over temperature protection is built-in, shutting down the power supply to prevent damage and then restoring power upon recovery.
- TypeAD/DC Power
- StyleEnclosed
- Output ChannelSingle
- AC input range selectable by switch
- Protections: Short circuit / Overload / Over voltage/Over temperature
- Forced air cooling by built-in DC fan
- •Withstand 300vac surge input for 5 second
- Built-in cooling Fan ON-OFF control
- Built-in constant current limiting circuit
- 100% full load burn-in test
- LED indicator for power on
- Fixed switching frequency at 90KHz
- Low cost, high reliability
| MODEL | NES-350-12 | |
| OUTPUT | DC VOLTAGE | 12V |
| RATED CURRENT | 29A | |
| CURRENT RANGE | 0 ~ 29A | |
| RATED POWER | 348W | |
| RIPPLE & NOISE(max.) (Note.2) | 150mVp-p | |
| VOLTAGE ADJ. RANGE | 10 ~ 13.5V | |
| VOLTAGE TOLERANCE (Note.3) | ±1.5% | |
| LINE REGULATION | ±0.5% | |
| LOAD REGULATION | ±1.0% | |
| SETUP, RISE TIME | 1000ms, 50ms/230VAC 1000ms, 50ms/115VAC at full load | |
| HOLD UP TIME(Typ.) | 20ms/230VAC 16ms/115VAC at full load | |
| INPUT | VOLTAGE RANGE | 90 ~ 132VAC/180 ~ 264VAC by switch 254 ~ 370VDC |
| FREQUENCY RANGE | 47 ~ 63Hz | |
| EFFICIENCY(Typ.) | 83% | |
| AC CURRENT(Typ.) | 7A/115VAC 4A/230VAC | |
| INRUSH CURRENT(Typ.) | 40A/115VAC 60A/230VAC | |
| LEAKAGE CURRENT | <3.5mA/240VAC | |
| PROTECTION | OVERLOAD | 105 ~ 135% rated output power |
| Protection type: Constant current limiting, recovers automatically after fault condition is removed | ||
| OVER VOLTAGE | 13.8 ~ 16.2V | |
| Protection type: Shut down O/P voltage, re-power on to recover | ||
| OVER TEMPERATURE | 95°C±5°C(3.3~7.5V);85°C±5°C(12~15V);80°C±5°C(24V);75°C±5°C (27~48V) (TSW1) Detect on case | |
| Protection type: Shut down O/P voltage, recovers automatically after temperature goes down | ||
| FUNCTION | FAN ON/OFF CONTROL(Typ.) | RTH2≧50°C FAN ON, ≦45°C FAN OFF (3.3 ~ 7.5V) |
| RTH2≧55°C FAN ON, ≦50°C FAN OFF (12 ~ 48V) | ||
| ENVIRONMENT | WORKING TEMP. | -20 ~ +60°C (Refer to output load derating curve) |
| WORKING HUMIDITY | 20 ~ 90% RH non-condensing | |
| STORAGE TEMP., HUMIDITY | -20 ~ +85°C, 10 ~ 95%RH | |
| TEMP. COEFFICIENT | ±0.03%/°C (0 ~ 50°C) | |
| VIBRATION | 10 ~ 500Hz, 3G 10min./1cycle, 60min. each along X, Y, Z axes | |
| SAFETY | SAFETY STANDARDS | UL60950-1 approved |
| WITHSTAND VOLTAGE | I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC | |
| ISOLATION RESISTANCE | I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25°C / 70% RH | |
| NOTE | 1. All parameters NOT specially mentioned are measured at 230VAC input，rated load and 25°C of ambient temperature.2. Ripple & noise are measured at 20MHz of bandwidth by using a 12’’ twisted pair-wire terminated with a 0.1μf & 47μf parallel capacitor.3. Tolerance: includes set up tolerance, line regulation and load regulation. | |
