Meanwell 300W Railway Single Output DC-DC Converter Switching Power Supply/12v dc-dc converter

MODEL

RSD-300B-12

OUTPUT

DC VOLTAGE

12V

RATED CURRENT

22.5A

CURRENT RANGE

0 ~ 22.5A

RATED POWER

270W

RIPPLE & NOISE (max.)   Note.2

120mVp-p

VOLTAGE TOLERANCE Note.3

±2.0%

LINE REGULATION    

±0.3%

LOAD REGULATION    

±1.0%

SETUP, RISE TIME

800ms, 50ms at full load

HOLD UP TIME (Typ.)

B/C- type comply with S1 level at full load, comply with S2 level at 70% load

INPUT

VOLTAGE RANGE 

CONTINUOUS

16.8 ~ 31.2VDC

1 SEC.

14.4 ~ 33.6VDC

EFFICIENCY (Typ.)

89.5%

DC CURRENT(Typ.)

14.6A/24V

INRUSH CURRENT (Typ.)

45A/24VDC

PROTECTION

OVER LOAD

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     

B/C- type : 110°C±5°C(TSW1) detect on main power transformer

Protection type : Shut down o/p voltage, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.

-40~+55°C (no derating) ; +70°C@ 60% load by free air convection ; +70°C no derating with external base plate, TX class compliance

WORKING HUMIDITY

5~95% RH non-condensing

STORAGE TEMP., HUMIDITY

-40~+85°C, 5~95%RH

TEMP. COEFFICIENT

±0.03%/°C (0~55°C)

VIBRATION

10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes ; Mounting : compliance to IEC61373

SAFETY &

EMC

(Note 4)

SAFETY STANDARDS

Meet IEC60950-1(LVD)

WITHSTAND VOLTAGE

I/P-O/P:4KVDC     I/P-FG:2.5KVDC     O/P-FG:2.5KVDC

ISOLATION RESISTANCE

I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25°C/ 70% RH

EMC EMISSION

Compliance to EN55022 (CISPR22) Conduction Emission: Class A, Radiation Emission: Class B

EMC IMMUNITY

Compliance to EN61000-4-2,3,4,5,6,8, light industry level, criteria A

RAILWAY STANDARD

Meet EN50155 / IEC60571 including IEC61373 for shock & vibration, EN50121-3-2 for EMC

Others

MTBF

130.7K hrs min.     MIL-HDBK-217F (25°C)

DIMENSION

216*97*40mm (L*W*H)

PACKING

1.19Kg ; 12pcs/15.3Kg/1.12CUFT

NOTE

1. All parameters NOT specially mentioned are measured at 24,48VDC 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 0.1uf & 47uf parallel capacitor.

3. Tolerance : includes set up tolerance, line regulation and load regulation.

4. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets

EMC directives.