RSD-300 Series Railway Single Output DC DC Converter
“
Specifications:
- Model: RSD-300 series
- DC Voltage:
- RSD-300B-5: 5V
- RSD-300B-12: 12V
- RSD-300B-24: 24V
- RSD-300B-48: 48V
- RSD-300C-5: 5V
- RSD-300C-12: 12V
- RSD-300C-24: 24V
- RSD-300C-48: 48V
- Rated Power: 210W
- Input Voltage Range:
- 16.8 ~ 31.2VDC
- 14.4 ~ 33.6VDC
- 33.6 ~ 62.4VDC
- 28.8 ~ 67.2VDC
- Efficiency:
- 89% – 91.5%
- Temperature Range: -40°C to +55°C
- Dimensions: 216 x 96.5 x 40mm (L x W x H)
Product Usage Instructions:
Installation:
- Ensure input voltage matches the specified range for the
model. - Mount the converter in a well-ventilated area for proper
cooling. - Connect output leads to the intended device securely.
Operation:
- Turn on the input power source within the specified voltage
range. - Observe the LED indicator for power status.
- Monitor the device for any abnormal behavior during
operation.
Maintenance:
- Regularly check for dust buildup and clean the converter if
necessary. - Inspect input and output connections for any signs of
damage. - Ensure proper ventilation around the converter for optimal
performance.
FAQ:
Q: What should I do if the LED indicator does not light
up?
A: Check the input power source and connections to ensure proper
voltage and secure attachment.
Q: Can I operate the converter in high-temperature
environments?
A: The converter is designed to operate within the specified
temperature range. Operating outside this range may affect
performance.
Q: How can I test if the converter is functioning
correctly?
A: Connect a load within the rated current range and verify
output voltage stability under load.
“`
300W Railway Single Output DC-DC Converter
RSD-300 series
Features :
Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
User’s Manual
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
GTIN CODE
MW Search: https://www.meanwell.com/serviceGTIN.aspx
SPECIFICATION
LED indicator for power on 100% full load burn-in test 3 years warranty
UL62368-1 AS/NZS62368-1 TPTC004 IEC62368-1
MODEL
RSD-300B-5 RSD-300B-12 RSD-300B-24 RSD-300B-48 RSD-300C-5 RSD-300C-12 RSD-300C-24 RSD-300C-48
DC VOLTAGE
5V
12V
24V
48V
5V
12V
24V
48V
RATED CURRENT
42A
22.5A
11.3A
5.7A
42A
25A
12.5A
6.3A
CURRENT RANGE
0 ~ 42A
0 ~ 22.5A
0 ~ 11.3A
0 ~ 5.7A
0 ~ 42A
0 ~ 25A
0 ~ 12.5A
0 ~ 6.3A
OUTPUT
RATED POWER
210W
RIPPLE & NOISE (max.) Note.2 100mVp-p
VOLTAGE TOLERANCE Note.3 ±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
270W 120mVp-p ±2.0% ±0.3% ±1.0%
271.2W 150mVp-p ±2.0% ±0.2% ±1.0%
273.6W 180mVp-p ±2.0% ±0.5% ±1.0%
210W 100mVp-p ±2.0% ±0.5% ±1.0%
300W 120mVp-p ±2.0% ±0.3% ±1.0%
300W 150mVp-p ±2.0% ±0.2% ±1.0%
302.4W 180mVp-p ±2.0% ±0.5% ±1.0%
SETUP, RISE TIME HOLD UP TIME (Typ.)
800ms, 50ms at full load Please refer to page 5,6 Hold up Time( Load de-rating curve )
INPUT
VOLTAGE CONTINUOUS RANGE 1 SEC. EFFICIENCY (Typ.)
DC CURRENT (Typ.) INRUSH CURRENT (Typ.)
16.8 ~ 31.2VDC
14.4 ~ 33.6VDC
89%
89.5%
9.7A/24V
14.6A/24V
45A/24VDC
90% 14.6A/24V
91.5% 14.6A/24V
33.6 ~ 62.4VDC
28.8 ~ 67.2VDC
90.5%
91%
4.8A/48V
7.2A/48V
45A/48VDC
91.5% 7.2A/48V
92% 7.2A/48V
EN50155:2007-B/C- type comply with S1 level @ full load, comply with S2 level @ 70% load INTERRUPTION OF VOLTAGE SUPPLY
EN50155:2017-Comply with S1 level
OVERLOAD
105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
PROTECTION OVER VOLTAGE
5.75 ~ 7V 13.8 ~ 16.2V 27.6 ~ 32.4V 55.2 ~ 64.8V 5.75 ~ 7V Protection type : Shut down o/p voltage, re-power on to recover
13.8 ~ 16.2V 27.6 ~ 32.4V 55.2 ~ 64.8V
OVER TEMPERATURE WORKING TEMP.
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
WORKING HUMIDITY ENVIRONMENT STORAGE TEMP.
TEMP. COEFFICIENT
5 ~ 95% RH non-condensing -40 ~ +85 ±0.03%/ (0 ~ 55)
VIBRATION
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes ; Mounting : compliance to IEC61373
OPERATING ALTITUDE 5000 meters
SAFETY STANDARDS
IEC 62368-1, UL 62368-1, AS/NZS 62368-1, EAC TP TC 004 approved, Design refer to BS EN/EN62368-1
SAFETY &
EMC (Note 5)
WITHSTAND VOLTAGE ISOLATION RESISTANCE EMC EMISSION EMC IMMUNITY
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 BS EN/EN55032 (CISPR32) Conduction Emission: Class A, Radiation Emission: Class B, EAC TP TC 020 Compliance to BS EN/EN61000-4-2,3,4,5,6,8, BS EN/EN55035, light industry level, EAC TP TC 020
RAILWAY STANDARD
BS EN/EN50155 / IEC60571 including IEC61373 for shock & vibration,BS EN/EN50121-3-2 for EMC;BS EN/EN45545-2 for fire protection
MTBF
1850.1K hrs min. Telcordia SR-332 (Bellcore) ; 130.8K hrs min. MIL-HDBK-217F (25)
OTHERS DIMENSION
216*96.5*40mm (L*W*H)
NOTE
PACKING
1.19Kg ; 12pcs/15.3Kg/0.97CUFT
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 0.1F & 47F 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 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to
perform these EMC tests, please refer to EMI testing of component power supplies.
(as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf ) 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).
Product Liability DisclaimerFor detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx
File Name:RSD-300-SPEC 2024-02-23
300W Railway Single Output DC-DC Converter
RSD-300 series
Features :
Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
User’s Manual
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
GTIN CODE
MW Search: https://www.meanwell.com/serviceGTIN.aspx
SPECIFICATION
LED indicator for power on 100% full load burn-in test 3 years warranty
UL62368-1 AS/NZS62368-1 TPTC004 IEC62368-1
MODEL
RSD-300D-5 RSD-300D-12 RSD-300D-24 RSD-300D-48 RSD-300E-5 RSD-300E-12 RSD-300E-24 RSD-300E-48
DC VOLTAGE
5V
12V
24V
48V
5V
12V
24V
48V
RATED CURRENT
42A
25A
12.5A
6.3A
42A
25A
12.5A
6.3A
CURRENT RANGE
0 ~ 42A
0 ~ 25A
0 ~ 12.5A
0 ~ 6.3A
0 ~ 42A
0 ~ 25A
0 ~ 12.5A
0 ~ 6.3A
OUTPUT
RATED POWER
210W
RIPPLE & NOISE (max.) Note.2 100mVp-p
VOLTAGE TOLERANCE Note.3 ±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
300W 120mVp-p ±2.0% ±0.2% ±1.0%
300W 150mVp-p ±2.0% ±0.2% ±1.0%
302.4W 180mVp-p ±2.0% ±0.5% ±1.0%
210W 100mVp-p ±2.0% ±0.5% ±1.0%
300W 120mVp-p ±2.0% ±0.3% ±1.0%
300W 150mVp-p ±2.0% ±0.2% ±1.0%
302.4W 180mVp-p ±2.0% ±0.5% ±1.0%
SETUP, RISE TIME HOLD UP TIME (Typ.)
800ms, 50ms at full load Please refer to page 5,6 Hold up Time( Load de-rating curve )
INPUT
VOLTAGE CONTINUOUS RANGE 1 SEC. EFFICIENCY (Typ.)
DC CURRENT (Typ.) INRUSH CURRENT (Typ.)
67.2 ~ 143VDC
57.6 ~ 154VDC
90%
91.5%
2.1A/110V 3.1A/110V
45A/110VDC
91.5% 3.1A/110V
91.5% 3.1A/110V
25.2 ~ 46.8VDC
21.6 ~ 50.4VDC
88%
90%
6.5A/36V
9.2A/36V
45A/36VDC
91% 9.2A/36V
91% 9.2A/36V
EN50155:2007-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 INTERRUPTION OF VOLTAGE SUPPLY
EN50155:2017-Comply with S1 level
OVERLOAD
105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
PROTECTION OVER VOLTAGE
5.75 ~ 7V 13.8 ~ 16.2V 27.6 ~ 32.4V 55.2 ~ 64.8V 5.75 ~ 7V Protection type : Shut down o/p voltage, re-power on to recover
13.8 ~ 16.2V 27.6 ~ 32.4V 55.2 ~ 64.8V
OVER TEMPERATURE WORKING TEMP.
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
WORKING HUMIDITY ENVIRONMENT STORAGE TEMP.
TEMP. COEFFICIENT
5 ~ 95% RH non-condensing -40 ~ +85 ±0.03%/ (0 ~ 55)
VIBRATION
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes ; Mounting : compliance to IEC61373
OPERATING ALTITUDE 5000 meters
SAFETY STANDARDS
IEC 62368-1, UL 62368-1, AS/NZS 62368-1, EAC TP TC 004 approved, Design refer to BS EN/EN62368-1
SAFETY &
EMC (Note 5)
WITHSTAND VOLTAGE ISOLATION RESISTANCE EMC EMISSION EMC IMMUNITY
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 BS EN/EN55032 (CISPR32) Conduction Emission: Class A, Radiation Emission: Class B, EAC TP TC 020 Compliance to BS EN/EN61000-4-2,3,4,5,6,8, BS EN/EN55035, light industry level, EAC TP TC 020
RAILWAY STANDARD
BS EN/EN50155 / IEC60571 including IEC61373 for shock & vibration, BS EN/EN50121-3-2 for EMC ; BS EN/EN45545-2 for fire protection
MTBF
1850.1K hrs min. Telcordia SR-332 (Bellcore) ; 130.8K hrs min. MIL-HDBK-217F (25)
OTHERS DIMENSION
216*96.5*40mm (L*W*H)
NOTE
PACKING
1.19Kg ; 12pcs/15.3Kg/0.97CUFT
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 0.1F & 47F 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 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to
perform these EMC tests, please refer to EMI testing of component power supplies.
(as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf ) 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).
Product Liability DisclaimerFor detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx
File Name:RSD-300-SPEC 2024-02-23
300W Railway Single Output DC-DC Converter
RSD-300 series
Features :
Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
2:1 wide input range
User’s Manual
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
GTIN CODE
·1U low profile 40mm ·All using 105 long life electrolytic capacitors
LED indicator for power on
MW Search: https://www.meanwell.com/serviceGTIN.aspx
SPECIFICATION
100% full load burn-in test 3 years warranty
UL62368-1 AS/NZS62368-1 TPTC004 IEC62368-1
MODEL
RSD-300F-5
RSD-300F-12
RSD-300F-24
RSD-300F-48
DC VOLTAGE
5V
12V
24V
48V
RATED CURRENT
42A
25A
12.5A
6.3A
CURRENT RANGE
0 ~ 42A
0 ~ 25A
0 ~ 12.5A
0 ~ 6.3A
OUTPUT
RATED POWER
210W
RIPPLE & NOISE (max.) Note.2 100mVp-p
VOLTAGE TOLERANCE Note.3 ±2.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
300W 120mVp-p ±2.0% ±0.3% ±1.0%
300W 150mVp-p ±2.0% ±0.2% ±1.0%
302.4W 180mVp-p ±2.0% ±0.5% ±1.0%
SETUP, RISE TIME HOLD UP TIME (Typ.)
800ms, 50ms at full load Please refer to page 5,6 Hold up Time( Load de-rating curve )
INPUT
VOLTAGE CONTINUOUS RANGE 1 SEC. EFFICIENCY (Typ.)
DC CURRENT (Typ.) INRUSH CURRENT (Typ.)
50.4 ~ 93.6VDC 43.2 ~ 100.8VDC 89% 3.25A/72V 45A/72VDC
91% 4.6A/72V
91% 4.6A/72V
91.5% 4.6A/72V
EN50155:2007-F-type comply with S2 level @ full load INTERRUPTION OF VOLTAGE SUPPLY
EN50155:2017-Comply with S1 level
OVERLOAD
105 ~ 135% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
PROTECTION OVER VOLTAGE
5.75 ~ 7V
13.8 ~ 16.2V
27.6 ~ 32.4V
Protection type : Shut down o/p voltage, re-power on to recover
55.2 ~ 64.8V
OVER TEMPERATURE WORKING TEMP.
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
WORKING HUMIDITY ENVIRONMENT STORAGE TEMP.
TEMP. COEFFICIENT
5 ~ 95% RH non-condensing -40 ~ +85 ±0.03%/ (0 ~ 55)
VIBRATION
10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes ; Mounting : compliance to IEC61373
OPERATING ALTITUDE 5000 meters
SAFETY STANDARDS
IEC 62368-1, UL 62368-1, AS/NZS 62368-1, EAC TP TC 004 approved, Design refer to BS EN/EN62368-1
SAFETY &
EMC (Note 5)
WITHSTAND VOLTAGE ISOLATION RESISTANCE EMC EMISSION EMC IMMUNITY
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 BS EN/EN55032 (CISPR32) Conduction Emission: Class A, Radiation Emission: Class B, EAC TP TC 020 Compliance to BS EN/EN61000-4-2,3,4,5,6,8, BS EN/EN55035, light industry level, EAC TP TC 020
RAILWAY STANDARD
BS EN/EN50155 / IEC60571 including IEC61373 for shock & vibration, BS EN/EN50121-3-2 for EMC ; BS EN/EN45545-2 for fire protection
MTBF
1850.1K hrs min. Telcordia SR-332 (Bellcore) ; 130.8K hrs min. MIL-HDBK-217F (25)
OTHERS DIMENSION
216*96.5*40mm (L*W*H)
NOTE
PACKING
1.19Kg ; 12pcs/15.3Kg/0.97CUFT
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 0.1F & 47F 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 360mm*360mm metal plate with 1mm of thickness. The final equipment must be re-confirmed that it still meets EMC directives. For guidance on how to
perform these EMC tests, please refer to EMI testing of component power supplies.
(as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf ) 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).
Product Liability DisclaimerFor detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx
File Name:RSD-300-SPEC 2024-02-23
13
10
300W Railway Single Output DC-DC Converter
RSD-300 series
Mechanical Specification
15max.
130
8
tc
208
tc : Max. Case Temperature
216 208
15max. 2-R2.1
4
4 LED
28
40
Case No.205 Unit:mm
7.75
I/P 1
2
3
1 O/P
1
2
96.5
81
13
2
3
10
4
4-R2.1
Input Terminal Pin No. Assignment :
Pin No. Assignment
1 DC INPUT V+
2 DC INPUT V-
3
FG
Output Terminal Pin No. Assignment :
(For 12V, 24V, 48V)
(For 5V)
Pin No. Assignment
Pin No.
1 DC OUTPUT -V
1,2
2 DC OUTPUT +V
3,4
Assignment DC OUTPUT -V DC OUTPUT +V
Block Diagram
fosc : 130KHz
EMI
POWER
RECTIFIERS
+V
I/P
FILTER
SWITCHING
& FILTER
-V
FG
O.L.P.
PWM
DETECTION CIRCUIT
CONTROL
O.T.P.
O.V.P.
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
Reference and Rating
B
Fast
Littelfuse 257, 30A, 32V
C
Time-Lag
Conquer UDA-A, 16A, 250V
D
Time-Lag
Conquer UDA-A, 8A, 250V
E
Time-Lag
Conquer UDA-A, 20A, 250V
F
Time-Lag
Conquer UDA-A, 10A, 250V
File Name:RSD-300-SPEC 2024-02-23
300W Railway Single Output DC-DC Converter
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 30
RSD-300C-24
Vo 30
RSD-300D-24
Vo 30
25
25
25
30
20
20
20
15
Turn On
15
Turn On
15
Turn On
Turn Off
Turn Off
Turn Off
10
10
10
5
12
13.5
0
Vin
11
12
13
14
15
16
17
5
24.2 25.8
0
Vin
23
25
27
29
31
33
35
5
53.5
56.2
0
Vin
50
55
60
65
70
RSD-300E-24
Vo 30
RSD-300F-24
Vo 30
25
25
20
20
15
Turn On
15
Turn On
Turn Off
Turn Off
10
10
5
18.6
20.9
0
Vin
17
19
21
23
25
27
29
5
39.1
41.8
0
Vin
37
39
41
43
45
47
49
Inrush Current
Inrush current is suppressed by a resistor during the initial start-up, and then the resistor is bypassed by a MOSFET to reduce power consumption after accomplishing the start-up.
Hold-up Time
EN50155: 2007 version – D and F and E-5 types are in compliance with S2 level, while B and C and E types are in compliance with S1 level at full load 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
1100%0%
90% 80% 70% 60% 50% 40% 30% 20% 10%
0% 0ms
10ms
20ms 30ms
40ms 50ms 60ms
70ms 80ms
90ms
TIME
LOAD
RSD-300B-12
100% 90% 80% 70% 60% 50% 40% 30% 20% 10%
0% 0ms
10ms
20ms 30ms
40ms 50ms 60ms
70ms 80ms
TIME
LOAD
RSD-300B-24
100% 90% 80% 70% 60% 50% 40% 30% 20% 10%
0% 0ms
10ms
20ms 30ms
40ms 50ms 60ms
70ms 80ms
TIME
RSD-300B-48
100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0ms
10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms
TIME
LOAD
RSD-300C-5
100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0ms
10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms
TIME
LOAD
RSD-300C-12
100% 90% 80% 70% 60% 50% 40% 30% 20% 10%
0% 0ms
10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms
TIME
LOAD
LOAD
File Name:RSD-300-SPEC 2024-02-23
LOAD
LOAD
300W Railway Single Output DC-DC Converter
RSD-300 series
RSD-300C-24
100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0ms
10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms
TIME
LOAD
RSD-300C-48
100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0ms
10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms
TIME
LOAD
RSD-300E-12
100% 90% 80% 70% 60% 50% 40% 30% 20% 10%
0% 0ms
10ms 20ms 30ms 40ms
50ms 60ms 70ms 80ms 90ms
TIME
RSD-300E-24
RSD-300E-48
100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0ms
10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms
LOAD
100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 0ms
10ms 20ms 30ms 40ms 50ms
60ms 70ms 80ms 90ms
TIME
TIME
EN50155: 2017 version – Comply with S1 level
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
95%
95%
90%
90%
EFFICIENCY
EFFICIENCY
85%
85%
3 1 .2 Vd c
80%
24Vdc
80%
1 6 .8 Vd c
75%
75%
70% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
70% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
3 1 .2 Vd c 24Vdc 1 6 .8 Vd c
EFFICIENCY
RSD-300B-24
95%
90%
85%
80%
75%
70% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
3 1 .2 Vdc 24Vdc 1 6 .8 Vdc
EFFICIENCY
EFFICIENCY
RSD-300B-48
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300C-24
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300D-12
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
3 1 .2 Vdc 24Vdc 1 6 .8 Vdc
6 2 .4 Vdc 48Vdc 3 3 .6 Vdc
143Vdc 110Vdc 6 7 .2 Vdc
EFFICIENCY
EFFICIENCY
EFFICIENCY
RSD-300C-5
95%
90%
85%
80%
75%
70% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
6 2 .4 Vd c 48Vdc 3 3 .6 Vd c
RSD-300C-48
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300D-24
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
6 2 .4 Vdc 48Vdc 3 3 .6 Vdc
143Vdc 110Vdc 6 7 .2 Vdc
EFFICIENCY
EFFICIENCY
EFFICIENCY
RSD-300C-12
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300D-5
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300D-48
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
6 2 .4 Vdc 48Vdc 3 3 .6 Vdc
143Vdc 110Vdc 6 7 .2 Vdc
143Vdc 110Vdc 6 7 .2 Vdc
EFFICIENCY
File Name:RSD-300-SPEC 2024-02-23
300W Railway Single Output DC-DC Converter
RSD-300 series
EFFICIENCY
EFFICIENCY
RSD-300E-5
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300E-48
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300F-24
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
4 6 .8 Vdc 36Vdc 2 5 .2 Vdc
4 6 .8 Vdc 36Vdc 2 5 .2 Vdc
9 3 .6 Vdc 72Vdc 5 0 .4 Vdc
EFFICIENCY
EFFICIENCY
EFFICIENCY
RSD-300E-12
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300F-5
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300F-48
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
4 6 .8 Vdc 36Vdc 2 5 .2 Vdc
9 3 .6 Vdc 72Vdc 5 0 .4 Vdc
9 3 .6 Vdc 72Vdc 5 0 .4 Vdc
EFFICIENCY
EFFICIENCY
RSD-300E-24
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
RSD-300F-12
95% 90% 85% 80% 75% 70%
10% 20% 30% 40% 50% 60% 70% 80% 90% 100%
LOAD
4 6 .8 Vdc 36Vdc 2 5 .2 Vdc
9 3 .6 Vdc 72Vdc 5 0 .4 Vdc
EFFICIENCY
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
+
EIN
PS1
D1
RL
I/P
–
I/P
+
PS2
D2
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. So please contact 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
+
E IN
PS1
I/P
–
I/P
+
PS2
I/P
–
+V RL
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).
I/P
+
+V
E IN
PS1 V1 D1
I/P
–
I/P PS2
I/P
+ V2
–
V1+V2 RL
D2 -V
File Name:RSD-300-SPEC 2024-02-23
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
Overload
50
region
Io(%)
0
50
100
150
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
100
80
80
60
60
40
40
20
20
-40
0
10
20
30
40
50 55 60 70 (HORIZONTAL) -30
AMBIENT TEMPERATURE ()
0
10
20
30
40
50
60
70
80 (HORIZONTAL)
Tcase ()
LOAD (%) RATED CURRENT (%)
File Name:RSD-300-SPEC 2024-02-23
300W Railway Single Output DC-DC Converter
RSD-300 series
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. Unit:mm
M4*4
360
LOAD (%)
2
360
The load vs ambient temperature curve is shown as below.
100 80 60 40 20
-40
0
10
20
30
40
50
60 70 (HORIZONTAL)
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 2024-02-23
300W Railway Single Output DC-DC Converter
RSD-300 series
Immunity to Environmental Conditions
Test method Cooling Test Dry Heat Test Damp Heat Test, Cyclic Vibration Test Increased Vibration Test Shock Test
Standard EN 50155 section 12.2.3 (Column 2, Class TX) EN 60068-2-1 EN 50155 section 12.2.4 (Column 2, Class TX) EN 50155 section 12.2.4 (Column 3, Class TX & Column 4, Class TX) 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
Test conditions
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
Low Temperature Storage Test
EN 50155 section 12.2.3 (Column 2, Class TX) EN 60068-2-1
Temperature: -40 Dwell Time: 16 hrs
Salt Mist Test
EN 50155 section 12.2.10 (Class ST4)
Temperature: 35±2 Duration: 96 hrs
Status No damage
PASS PASS PASS PASS PASS PASS PASS
EN45545-2 Fire Test Conditions
Test Items Items
Oxygen index test R22 Smoke density test
Smoke toxicity test R24 Oxygen index test R25 Glow-wire test R26 Vertical flame test
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
Standard
HL1 PASS PASS PASS PASS PASS PASS
Hazard Level HL2 PASS PASS PASS PASS PASS PASS
HL3 PASS PASS PASS PASS PASS PASS
File Name:RSD-300-SPEC 2024-02-23
Documents / Resources
 |
MEAN WELL RSD-300 Series Railway Single Output DC DC Converter [pdf] Owner's Manual RSD-300B-5, RSD-300B-12, RSD-300B-24, RSD-300B-48, RSD-300C-5, RSD-300C-12, RSD-300C-24, RSD-300C-48, RSD-300 Series Railway Single Output DC DC Converter, RSD-300 Series, Railway Single Output DC DC Converter, Output DC DC Converter, DC Converter |