Page 1
SPECIFICATION
MODEL
DC VO LTAG E
RATED CURRENT
CURRENT RANGE
RATED POWER
OUTPUT
INPUT
PROTECTION
ENVIRONMENT
SAFETY &
EMC
(Note 5)
OTHERS
NOTE
RIPPLE & NOISE (max.)
VOLTAGE TOLERANCE Note.3
LINE REGULATION
LOAD REGULATION
SETUP, RISE TIME
HOLD UP TIME (Typ.)
VO LTAGE
RANGE
EFFICIENCY (Typ.)
DC CURRENT (Typ.)
INRUSH CURRENT (Typ.)
OVERLOAD
OVER VOLTAGE
OVER TEMPERATURE
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
VIBRATION
SAFETY STANDARDS
WITHSTAND VOLTAGE
ISOLATION RESISTANCE
EMC EMISSION
EMC IMMUNITY
RAILWAY STANDARD
MTBF
DIMENSION
PACKING
1. All parameters NOT specially mentioned are measured at 24,48VDC input, rated load and 25 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. Strongly recommended that external output capacitance should not exceed 5000uF. :(Only for RSD-300-5 / -12)
5. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on
a mm* mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives.360 360 For guidance on how to
perform these EMC tests, please refer to EMI testing of component power supplies. (as available on http://www.meanwell.com)
6. The ambient temperature derating of 3.5 /1000m with fanless models and of 5 /1000m with fan models for operating altitude higher than 2000m(6500ft).℃℃
300W Railway Single Output DC-DC Converter
■ Features :
Compliance to EN50155 and EN45545-2 railway standard
2:1 wide input range
Protections: Short circuit / Overload / Over voltage / Over temperature
/ Input reverse polarity
4000VDC I/O isolation
Cooling by free air convection
Half encapsulated
Built-in constant current limiting circuit
1U low profile 40mm
All using 105 long life electrolytic capacitors℃
LED indicator for power on
100% full load burn-in test
3 years warranty
RSD-300B-12RSD-300B-5 RSD-300B-24 RSD-300B-48 RSD-300C-12RSD-300C-5 RSD-300C-24 RSD-300C-48
Note.2
CONTINUOUS
1 SEC.
12V5V
42A 25A42A 12.5A 6.3A
0 ~ 42A 0 ~ 25A0 ~ 42A 0 ~ 12.5A 0 ~ 6.3A
210W 300W210W 300W 302.4W
800ms, 50ms at full load
B/C- type comply with S1 level @ full load, comply with S2 level @ 70% load
16.8 ~ 31.2VDC
14.4 ~ 33.6VDC
45A/24VDC
105 ~ 135% rated output power
Protection type : Constant current limiting, recovers automatically after fault condition is removed
Protection type : Shut down o/p voltage, re-power on to recover
Shut down o/p voltage, recovers automatically after temperature goes down
-40 ~ +55 (no derating) ; +70 @ 60% load by free air convection ; +70 no derating with external base plate, TX class compliance℃℃ ℃
5 ~ 95% RH non-condensing
-40 ~ +85 , 5 ~ 95% RH non-condensing℃
±℃ ℃0.03%/ (0 ~ 55 )
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X,Y, Z axes ; Mounting : compliance to IEC61373
IEC60950-1(LVD) EAC TP TC 004
I/P-O/P:4KVDC I/P-FG:2.5KVDC O/P-FG:2.5KVDC
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25 / 70% RH℃
Compliance to EN55032 (CISPR32) Conduction Emission: Class A, Radiation Emission: Class B, EAC TP TC 020
Compliance to EN61000-4-2,3,4,5,6,8, light industry level, criteria A, EAC TP TC 020
EN50155 / IEC60571 including IEC61373 for shock & vibration, EN50121-3-2 for EMC ; EN45545-2 for fire protection
130.7K hrs min. MIL-HDBK-217F (25 )℃
216*96.5*40mm (L*W*H)
1.19Kg ; 12pcs/15.3Kg/1.12CUFT
22.5A 11.3A 5.7A
0 ~ 22.5A 0 ~ 11.3A 0 ~ 5.7A
270W 271.2W 273.6W
120mVp-p100mVp-p 150mVp-p 180mVp-p 120mVp-p100mVp-p 150mVp-p 180mVp-p
±2.0%±2.0% ±2.0% ±2.0% ±2.0%±2.0% ±2.0% ±2.0%
±0.3%±0.5% ±0.2% ±0.5% ±0.3%±0.5% ±0.2% ±0.5%
±1.0%±1.0% ±1.0% ±1.0% ±1.0%±1.0% ±1.0% ±1.0%
89.5%89% 90% 91.5% 91%90.5%
14.6A/24V9.7A/24V 14.6A/24V 14.6A/24V
13.8 ~ 16.2V5.75 ~ 7V 13.8 ~ 16.2V5.75 ~ 7V27.6 ~ 32.4V 55.2 ~ 64.8V 27.6 ~ 32.4V 55.2 ~ 64.8V
, approved
24V 48V 12V5V 24V 48V
RSD-300 series
33.6 ~ 62.4VDC
28.8 ~ 67.2VDC
91.5% 92%
7.2A/48V4.8A/48V 7.2A/48V 7.2A/48V
45A/48VDC
File Name:RSD-300-SPEC 2018-01-15
Page 2
SPECIFICATION
MODEL
DC VO LTAG E
RATED CURRENT
CURRENT RANGE
RATED POWER
OUTPUT
INPUT
PROTECTION
ENVIRONMENT
SAFETY &
EMC
(Note 5)
OTHERS
NOTE
RIPPLE & NOISE (max.)
VOLTAGE TOLERANCE Note.3
LINE REGULATION
LOAD REGULATION
SETUP, RISE TIME
HOLD UP TIME (Typ.)
VO LTAGE
RANGE
EFFICIENCY (Typ.)
DC CURRENT (Typ.)
INRUSH CURRENT (Typ.)
OVERLOAD
OVER VOLTAGE
OVER TEMPERATURE
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
VIBRATION
SAFETY STANDARDS
WITHSTAND VOLTAGE
ISOLATION RESISTANCE
EMC EMISSION
EMC IMMUNITY
RAILWAY STANDARD
MTBF
DIMENSION
PACKING
1. All parameters NOT specially mentioned are measured at 36,110VDC input, rated load and 25 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. Strongly recommended that external output capacitance should not exceed 5000uF. :(Only for RSD-300-5 / -12)
5. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on
a mm* mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives.360 360 For guidance on how to
perform these EMC tests, please refer to EMI testing of component power supplies. (as available on http://www.meanwell.com)
6. The ambient temperature derating of 3.5 /1000m with fanless models and of 5 /1000m with fan models for operating altitude higher than 2000m(6500ft).℃℃
300W Railway Single Output DC-DC Converter
■ Features :
Compliance to EN50155 and EN45545-2 railway standard
2:1 wide input range
Protections: Short circuit / Overload / Over voltage / Over temperature
/ Input reverse polarity
4000VDC I/O isolation
Cooling by free air convection
Half encapsulated
Built-in constant current limiting circuit
1U low profile 40mm
All using 105 long life electrolytic capacitors℃
LED indicator for power on
100% full load burn-in test
3 years warranty
RSD-300D-12RSD-300D-5 RSD-300D-24 RSD-300D-48 RSD-300E-12RSD-300E-5 RSD-300E-24 RSD-300E-48
Note.2
CONTINUOUS
1 SEC.
12V5V
42A 25A25A 42A 12.5A12.5A 6.3A6.3A
0 ~ 42A 0 ~ 25A0 ~ 25A 0 ~ 42A 0 ~ 12.5A0 ~ 12.5A 0 ~ 6.3A0 ~ 6.3A
210W 300W300W 210W 300W300W 302.4W302.4W
120mVp-p100mVp-p 150mVp-p 180mVp-p 120mVp-p100mVp-p 150mVp-p 180mVp-p
±2.0%±2.0% ±2.0% ±2.0% ±2.0%±2.0% ±2.0% ±2.0%
±0.2%±0.5% ±0.2% ±0.5% ±0.3%±0.5% ±0.2% ±0.5%
±1.0%±1.0% ±1.0% ±1.0% ±1.0%±1.0% ±1.0% ±1.0%
800ms, 50ms at full load
D-type and E-5 comply with S2 level @ full load; other E- type comply with S1 level @ full load, comply with S2 level @ 70% load
67.2 ~ 143VDC
57.6 ~ 154VDC
91.5%90% 91.5% 91.5% 90%88%
3.1A/110V2.1A/110V 3.1A/110V 3.1A/110V
45A/110VDC
105 ~ 135% rated output power
Protection type : Constant current limiting, recovers automatically after fault condition is removed
13.8 ~ 16.2V5.75 ~ 7V 13.8 ~ 16.2V5.75 ~ 7V27.6 ~ 32.4V 55.2 ~ 64.8V 27.6 ~ 32.4V 55.2 ~ 64.8V
Protection type : Shut down o/p voltage, re-power on to recover
Shut down o/p voltage, recovers automatically after temperature goes down
-40 ~ +55 (no derating) ; +70 @ 60% load by free air convection ; +70 no derating with external base plate, TX class compliance℃℃ ℃
5 ~ 95% RH non-condensing
-40 ~ +85 , 5 ~ 95% RH non-condensing℃
±℃ ℃0.03%/ (0 ~ 55 )
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X,Y, Z axes ; Mounting : compliance to IEC61373
IEC60950-1(LVD) EAC TP TC 004
I/P-O/P:4KVDC I/P-FG:2.5KVDC O/P-FG:2.5KVDC
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25 / 70% RH℃
Compliance to EN55032 (CISPR32) Conduction Emission: Class A, Radiation Emission: Class B, EAC TP TC 020
Compliance to EN61000-4-2,3,4,5,6,8, light industry level, criteria A, EAC TP TC 020
EN50155 / IEC60571 including IEC61373 for shock & vibration, EN50121-3-2 for EMC ; EN45545-2 for fire protection
130.7K hrs min. MIL-HDBK-217F (25 )℃
216*96.5*40mm (L*W*H)
1.19Kg ; 12pcs/15.3Kg/1.12CUFT
, approved
24V 48V 12V5V 24V 48V
RSD-300 series
25.2 ~ 46.8VDC
21.6 ~ 50.4VDC
91% 91%
9.2A/36V6.5A/36V 9.2A/36V 9.2A/36V
45A/36VDC
File Name:RSD-300-SPEC 2018-01-15
Page 3
SPECIFICATION
MODEL
DC VO LTAG E
RATED CURRENT
CURRENT RANGE
RATED POWER
OUTPUT
INPUT
PROTECTION
ENVIRONMENT
SAFETY &
EMC
(Note 5)
OTHERS
NOTE
RIPPLE & NOISE (max.)
VOLTAGE TOLERANCE Note.3
LINE REGULATION
LOAD REGULATION
SETUP, RISE TIME
HOLD UP TIME (Typ.)
VO LTAGE
RANGE
EFFICIENCY (Typ.)
DC CURRENT (Typ.)
INRUSH CURRENT (Typ.)
OVERLOAD
OVER VOLTAGE
OVER TEMPERATURE
WORKING TEMP.
WORKING HUMIDITY
STORAGE TEMP., HUMIDITY
TEMP. COEFFICIENT
VIBRATION
SAFETY STANDARDS
WITHSTAND VOLTAGE
ISOLATION RESISTANCE
EMC EMISSION
EMC IMMUNITY
RAILWAY STANDARD
MTBF
DIMENSION
PACKING
1. All parameters NOT specially mentioned are measured at 72VDC input, rated load and 25 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. Strongly recommended that external output capacitance should not exceed 5000uF. :(Only for RSD-300-5 / -12)
5. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on
a mm* mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives.360 360 For guidance on how to
perform these EMC tests, please refer to EMI testing of component power supplies. (as available on http://www.meanwell.com)
6. The ambient temperature derating of 3.5 /1000m with fanless models and of 5 /1000m with fan models for operating altitude higher than 2000m(6500ft).℃℃
300W Railway Single Output DC-DC Converter
■ Features :
Compliance to EN50155 and EN45545-2 railway standard
2:1 wide input range
Protections: Short circuit / Overload / Over voltage / Over temperature
/ Input reverse polarity
4000VDC I/O isolation
Cooling by free air convection
Half encapsulated
Built-in constant current limiting circuit
•1U low profile 40mm
•All using 105 long life electrolytic capacitors℃
LED indicator for power on
100% full load burn-in test
3 years warranty
RSD-300F-12RSD-300F-5 RSD-300F-24 RSD-300F-48
12V5V
25A42A 12.5A 6.3A
0 ~ 25A0 ~ 42A 0 ~ 12.5A 0 ~ 6.3A
300W210W 300W 302.4W
Note.2
CONTINUOUS
1 SEC.
800ms, 50ms at full load
F-type comply with S2 level @ full load
50.4 ~ 93.6VDC
43.2 ~ 100.8VDC
89%
3.25A/72V
45A/72VDC
105 ~ 135% rated output power
Protection type : Constant current limiting, recovers automatically after fault condition is removed
Protection type : Shut down o/p voltage, re-power on to recover
Shut down o/p voltage, recovers automatically after temperature goes down
-40 ~ +55 (no derating) ; +70 @ 60% load by free air convection ; +70 no derating with external base plate, TX class compliance℃℃ ℃
5 ~ 95% RH non-condensing
-40 ~ +85 , 5 ~ 95% RH non-condensing℃
±℃ ℃0.03%/ (0 ~ 55 )
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X,Y, Z axes ; Mounting : compliance to IEC61373
IEC60950-1(LVD) EAC TP TC 004
I/P-O/P:4KVDC I/P-FG:2.5KVDC O/P-FG:2.5KVDC
I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25 / 70% RH℃
Compliance to EN55032 (CISPR32) Conduction Emission: Class A, Radiation Emission: Class B, EAC TP TC 020
Compliance to EN61000-4-2,3,4,5,6,8, light industry level, criteria A, EAC TP TC 020
EN50155 / IEC60571 including IEC61373 for shock & vibration, EN50121-3-2 for EMC ; EN45545-2 for fire protection
130.7K hrs min. MIL-HDBK-217F (25 )℃
216*96.5*40mm (L*W*H)
1.19Kg ; 12pcs/15.3Kg/1.12CUFT
, approved
120mVp-p100mVp-p 150mVp-p 180mVp-p
±2.0%±2.0% ±2.0% ±2.0%
±0.3%±0.5% ±0.2% ±0.5%
±1.0%±1.0% ±1.0% ±1.0%
91%
4.6A/72V
13.8 ~ 16.2V5.75 ~ 7V 27.6 ~ 32.4V 55.2 ~ 64.8V
RSD-300 series
24V 48V
91%
4.6A/72V
91.5%
4.6A/72V
File Name:RSD-300-SPEC 2018-01-15
Page 4
300W Railway Single Output DC-DC Converter
RSD-300 series
Mechanical Specification
15max.
I/P
13
10
1
2
3
4-R2.1
208
216
208
LED
2-R2.1
1
2
15max.
4
4
O/P
Case No.205 Unit:mm
28
40
7.75
1
81
96.5
13
10
2
3
4
Input Terminal Pin No. Assignment :
1
2
3
Assignment
DC INPUT V+
DC INPUT V-
FG
Pin N o.
Block Diagram
I/P
FG
EMI
FILTER
O.L.P.
O.T.P.
POWER
SWITCHING
PWM
CONTROL
Output Terminal Pin No. Assignment :
(For 12V, 24V, 48V) (For 5V)
Pin No. Pin No.
RECTIFIERS
&
FILTER
O.V.P.
Assignment Assignment
DC OUTPUT -V DC OUTPUT -V
1
2 3,4
DC OUTPUT +V DC OUTPUT +V
DETECTION
CIRCUIT
1,2
fosc : 130KHz
+V
-V
Input Fuse
There are one or two fuses connected in series to the positive input line, which are used to protect against abnormal surge. Fuse specifications of each model are shown
as below.
Type
Fuse Type
B
C
D
E
F
Fast
Time-Lag
Time-Lag
Time-Lag
Time-Lag
Reference and Rating
Littelfuse 257, 30A, 32V
Conquer UDA-A, 16A, 250V
Conquer UDA-A, 8A, 250V
Conquer UDA-A, 20A, 250V
Conquer UDA-A, 10A, 250V
File Name:RSD-300-SPEC 2018-01-15
Page 5
300W Railway Single Output DC-DC Converter
20.9
18.6
0
5
10
15
20
25
30
17 19 21 23 25 27 29
Turn On
Turn Off
13.5
12
0
5
10
15
20
25
30
11 12 13 14 15 16 17
Turn On
Turn Off
25.824.2
30
0
5
10
15
20
25
30
23 25 27 29 31 33 35
Turn On
Turn Off
56.2
53.5
0
5
10
15
20
25
30
50 55 60 65 70
Turn On
Turn Off
41.8
39.1
0
5
10
15
20
25
30
37 39 41 43 45 47 49
Turn On
Turn Off
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20m s 30ms 40ms 50ms 60ms 70ms 80m s
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10m s 20m s 30ms 40ms 50m s 60m s 70ms 80ms
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20ms 30ms 40m s 50ms 60m s 70m s 80ms 90ms
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20m s 30ms 40ms 50ms 60ms 70ms 80m s
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms
RSD-300 series
Input Reverse Polarity Protection
There is a MOSFET connected in series to the negative input line. If the input polarity is connected reversely, the MOSFET opens and there will be no output to protect
the unit.
Input Range and Transient Ability
The series has a wide range input capability. Within 30% of rated input voltage, it can be executed at full-load operation and operate properly; with 40% of rated input± ±
voltage, it can withstand that for 1 second.
Input Under-Voltage Protection
If input voltage drops below Vimin, the internal control IC shuts down and there is no output voltage. It recovers automatically when input voltage reaches above Vimin,
please refer to the cruve below.
RSD-300B-24
Vo
RSD-300C-24
Vo
Vin VinVin
RSD-300D-24
Vo
RSD-300E-24
Vo
Vin
RSD-300F-24
Vo
Vin
Inrush Current
Inrush current is suppressed by a resistor during the initial start-up, and then the resistor is bypassed by a MOSFETto reduce power consumption after accomplishing
the start-up.
Hold-up Time
D and F an d E- 5 types are i n co mpli ance with S 2 le vel, w hile B and C an d E ty pes are i n co mplia nc e wi th S1 le vel at full l oa d output condition.
To fulfil the requirements of S2 level, B and C and E types require de-rating their output load to 70%, please refer to the curve diagrams below.
RSD-300B-5
100%
LOAD
TIME
RSD-300B-12
LOAD
TIME
RSD-300B-24
LOAD
TIME
RSD-300B-48
LOAD
TIME
RSD-300C-5
LOAD
TIME
RSD-300C-12
LOAD
TIME
File Name:RSD-300-SPEC 2018-01-15
Page 6
300W Railway Single Output DC-DC Converter
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
31.2Vdc
24Vdc
16.8Vdc
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10m s 20m s 30m s 40ms 50ms 60m s 70ms 80m s
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10m s 20m s 30ms 40ms 50m s 60m s 70ms 80ms
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20ms 30ms 40ms 50ms 60m s 70ms 80ms 90m s
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10m s 20ms 30m s 40m s 50ms 60ms 70ms 80ms 90ms
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
0ms 10ms 20m s 30ms 40m s 50ms 60ms 70ms 80ms 90ms
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
31.2Vdc
24Vdc
16.8Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
31.2Vdc
24Vdc
16.8Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
31.2Vdc
24Vdc
16.8Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
62.4Vdc
48Vdc
33.6Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
62.4Vdc
48Vdc
33.6Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
62.4Vdc
48Vdc
33.6Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
143Vdc
110Vdc
67.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
143Vdc
110Vdc
67.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
143Vdc
110Vdc
67.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
143Vdc
110Vdc
67.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
62.4Vdc
48Vdc
33.6Vdc
RSD-300 series
RSD-300C-24
LOAD
TIME
RSD-300E-24
LOAD
TIME
RSD-300C-48
LOAD
RSD-300E-48
LOAD
RSD-300E-12
LOAD
TIME
TIME
Output Voltage Adjustment
This function is optional, which the standard product does not have it. If you do need the function, please contact MW for details.
Efficiency vs Load & Vin Curve
The efficiency vs load & Vin curves of each model are shown as below.
RSD-300B-5
RSD-300B-12
RSD-300B-24
TIME
EFFICIENCY
RSD-300B-48
EFFICIENCY
RSD-300C-24
EFFICIENCY
RSD-300D-12
LOAD
LOAD
LOAD
EFFICIENCY
RSD-300C-5
EFFICIENCY
RSD-300C-48
EFFICIENCY
RSD-300D-24
LOAD
LOAD
LOAD
EFFICIENCY
LOAD
RSD-300C-12
EFFICIENCY
LOAD
RSD-300D-5
EFFICIENCY
LOAD
RSD-300D-48
EFFICIENCY
LOAD
EFFICIENCY
LOAD
EFFICIENCY
LOAD
File Name:RSD-300-SPEC 2018-01-15
Page 7
300W Railway Single Output DC-DC Converter
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
46.8Vdc
36Vdc
25.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
46.8Vdc
36Vdc
25.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
46.8Vdc
36Vdc
25.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
46.8Vdc
36Vdc
25.2Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
93.6Vdc
72Vdc
50.4Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
93.6Vdc
72Vdc
50.4Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
93.6Vdc
72Vdc
50.4Vdc
70%
75%
80%
85%
90%
95%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
93.6Vdc
72Vdc
50.4Vdc
RSD-300 series
RSD-300E-5
EFFICIENCY
RSD-300E-48
EFFICIENCY
RSD-300F-24
EFFICIENCY
LOAD
LOAD
LOAD
RSD-300E-12
EFFICIENCY
RSD-300F-5
EFFICIENCY
RSD-300F-48
EFFICIENCY
RSD-300E-24
EFFICIENCY
LOAD LOAD
RSD-300F-12
EFFICIENCY
LOAD
LOAD
LOAD
Parallel and Series Connection
A.Operation in Parallel
Since RSD-300 series don't have built-in parallel circuit, it can only use external circuits to achieve the redundant operation but not increase the current rating.
1.Add a diode at the positive-output of each power supply (as shown as below), the current rating of the diode should be larger than the maximum output current rating
and attached to a suitable heat sink.This is only for redundant use (increase the reliability of the system) and users have to check suitability of the circuit by themselves.
+
I/P
IN
E PS1
I/P
I/P
PS2
I/P
2.When using S.P.S. in parallel connection, the leakage current will increase at the same time.This could pose as a shock hazard for the user. S o pl ea se c on tact the
supplier if you have this kind of application.
B.Operation in Series
RSD-300 can be operated in series. Here are the methods of doing it:
1.Positive and negative terminals are connected as shown as below. According to the connection, you can get the positive and negative output voltages for your loads.
I/P
IN
E
PS1
I/P
I/P
PS2
I/P
D1
RL
-
+
D2
-
+
+V
L
R
-
COM
+
RL
-
-V
2.Increase the output voltage (current does not change). Because RSD-300 series have no reverse blocking diode in the unit, you should add an external blocking diode
to prevent the damage of every unit while starting up. The voltage rating of the external diode should be larger than V1+V2 (as shown as below).
+V
1
D
PS1
+
1
V
-
I/P
IN
E
I/P
V1+V2LR
PS2
+
2
2
D
V
-
-V
File Name:RSD-300-SPEC 2018-01-15
I/P
I/P
Page 8
300W Railway Single Output DC-DC Converter
RSD-300 series
Overload Protection
If the output draw up to 105~135% of its output power rating, the converter will go into overload protection which is constant current mode.After the faulty condition
is removed, it will recover automatically. Please refer to the diagram below for the detail operation characteristic. Please note that it's not suitable to operate within
the overload region continuously, or it may cause to over temperature and reduce the life of the power supply unit or even damage it.
Vo(%)
100
50
0 50 100 150
Overload
region
Io(%)
Over Voltage Protection
The converter shuts off to protect itself when the output voltage drawn exceeds 115~140% of its output rating. It must be repowered on to recover.
Over Temperature Protection
The converter shuts off to protect itself when the built-in temperature sensor mounted on the main power transformer senses a high temperature. The output recovers
automatically if the temperature drops below the limit.
LED Indicator
Equipped with a built-in LED indicator, the converter provides an easy way for users to check its condition through the LED indicator.
Green : normal operation; No signal: no power or failure.
Derating Curve
a.Single unit operation
If the unit has no iron plate mounted on its bottom, the maximum ambient temperature for the unit will be 55 as operating under full load condition. It requires℃
de-rating output current when ambient temperature is between 55-70 , please refer to the de-rating curve as below.℃
100
80
60
40
LOAD (%)
20
-40 20 30 40 50 55 60 70
100
AMBIENT TEMPERATURE ( )℃
(HORIZONTAL)
File Name:RSD-300-SPEC 2018-01-15
Page 9
300W Railway Single Output DC-DC Converter
Suitable installation methods are shown as below. Since RSD-300 is a semi-potted model, its thermal performances for the following installation methods are similar
and share the same derating curve.
b.Operate with additional iron plate
If it is necessary to fulfil the requirements of EN50155 TX level that operate the unit fully-loaded at 70 , RSD-300 series must be installed onto an iron plate on℃
the bottom. The size of the suggested iron plate is shown as below. In order for optimal thermal performance, the iron plate must have an even & smooth surface
and RSD-300 series must be firmly mounted at the center of the iron plate.
RSD-300 series
Unit:mm
M4*4
360
360
The load vs ambient temperature curve is shown as below.
100
80
60
40
LOAD (%)
20
-40 20 30 40 50 60 70
100
(HORIZONTAL)
2
AMBIENT TEMPERATURE ( )℃
Suitable installation methods are shown as below. Since RSD-300 is a semi-potted model, its thermal performances for the following installation methods are similar
and share the same derating curve.
iron plate
File Name:RSD-300-SPEC 2018-01-15
Page 10
300W Railway Single Output DC-DC Converter
Immunity to Environmental Conditions
RSD-300 series
Test method
Cooling Test
Dry Heat Test
Damp Heat Test, Cyclic
Vibration Test
Increased VibrationTest
Shock Test
Low Temperature Storage Test
Salt Mist Test
EN 50155 section 12.2.3 (Column 2, ClassTX)
EN 60068-2-1
EN 50155 section 12.2.4 (Column 2, ClassTX)
EN 50155 section 12.2.4 (Column 3, ClassTX & Column 4, ClassTX)
EN 60068-2-2
EN 50155 section 12.2.5
EN 60068-2-30
EN 50155 section 12.2.11
EN 61373
EN 50155 section 12.2.11
EN 61373
EN 50155 section 12.2.11
EN 61373
EN 50155 section 12.2.3 (Column 2, ClassTX)
EN 60068-2-1
EN 50155 section 12.2.10 (Class ST4)
EN45545-2 Fire Test Conditions
Test Items
Items
EN 45545-2:2013
EN ISO 4589-2:1996
EN 45545-2:2013
EN ISO 5659-2:2006
EN 45545-2:2013
NF X70-100:2006
EN 45545-2:2013
EN ISO 4589-2:1996
EN 45545-2:2013
EN 60695-2-11:2000
EN 45545-2:2013
EN 60695-11:2003
R22
R24
R25
R26
Oxygen index test
Smoke density test
Smoke toxicity test
Oxygen index test
Glow-wire test
Vertical flame test
Standard
Standard
Test conditions Status
Temperature: -40℃
Dwell Time: 2 hrs/cycle
Temperature: 70 / 85℃℃
Duration: 6 hrs / 10min
Temperature: 25 ~55℃℃
Humidity: 90%~100% RH
Duration: 48 hrs
Temperature: 19℃
Humidity: 65%
Duration: 10 mins
Temperature: 19℃
Humidity: 65%
Duration: 5 hrs
Temperature: 21 3±℃
Humidity: 65 5%±
Duration: 30ms*18
Temperature: -40℃
Dwell Time: 16 hrs
Temperature: 35 2℃± ℃
Duration: 96 hrs
Hazard Level
HL1 HL2 HL3
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
No damage
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
PASS
File Name:RSD-300-SPEC 2018-01-15
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