MEAN WELL DRDN20 20A DIN Rail Type Redundancy Module Owner’s Manual
- June 1, 2024
- MEAN WELL
Table of Contents
MEAN WELL DRDN20 20A DIN Rail Type Redundancy Module Owner’s Manual
Features
- Support 1+1 and N+1 redundancy system
- 2 channels input and 1 output
- Suitable for redundancy operation of 12V/24V/48V system
- Output current up to 20A
- Cooling by free air convection
- -40~+80°C ultra-wide operating temperature (>+60°C derating)
- 32mm slim width
- Built-in 2 channels DC OK signal and alarm relay contact
- Installed on DIN Rail TS35/7.5 or 15
- 3 years warranty
Applications
- Industrial control system
- Semiconductor fabrication equipment
- Factory automation
- Electro-mechanical apparatus
GTIN CODE
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Description
The DRDN20 series is a 20A redundancy module that can be used with a power supply to improve overall system operation reliability. Product key features include: 12V/24V/48V input voltage for selection, support N+1 and 1+1 redundancy systems, built-in two rails DC input contacts and single output. The MOSFET technology implemented can reduce heat loss and reduce the voltage difference between the input and output voltages, built-in 2 channels DC OK relay contacts for monitoring output status, ultra-wide operating temperature of -40 to +80°C and narrow width (32mm.
Model Encoding
SPECIFICATION
| **MODEL** | DRDN20- |
|---|
=12V, 24V, 48V
**INPUT| NUMBER OF INPUT| 2 Channels
DC NORMAL VOLTAGE| 12Vdc| 24Vdc| 48Vdc
DC VOLTAGE RANGE| 9~14Vdc| 19~29Vdc| 36~60Vdc
RATED CURRENT| 0~20A per input Continuous
VOLTAGE DROP (Vin-Vout) ****(max.)| 0.25V
PEAK CURRENT| 0~30A per input 5Sec.
EFFICIENCY (Typ.)| 98%
INPUT REVERSE CURRENT (max.)| 1mA
INPUT REVERSE VOLTAGE (max.)| 40Vdc| 40Vdc| 65Vdc
****OUTPUT| RATED CURRENT| 0~20A, Continuous
PEAK CURRENT (max.)| 30A, 5Sec.
CAPACITANCE(Typ.)| 320uF
STANDBY POWER LOSSES(Typ.)| 1.5W
****PROTECTION| OVERLOAD| <30A,5Sec. No damage
SHORT CIRCUIT| <30A,5Sec. No damage
****FUNCTION| REDUNDANCY| For 1+1 redundancy ,and support
N+1 redundancy
BOTH INPUTS VOLTAGE ALARM| <8.5V or >14.7V (±5%)| <18V or >31V (±5%)|
<34.2V or >63V (±5%)
RELAY| 30Vdc/1A resistive load
LED STATUS DISPLAY| Green LED OK
****ENVIRONMENT| COOLING| Free air convection
WORKING TEMP. Note.2| -40 ~ +80℃ (Refer to “Derating Curve”)
WORKING HUMIDITY| 5 ~ 95% RH non-condensing
STORAGE TEMP.| -40 ~ +85℃
TEMP. COEFFICIENT| ±0.03%/℃ (0 ~ 60℃)
VIBRATION| Component:10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X,
Y, Z axes; Mounting: Compliance to IEC61373
OPERATING ALTITUDE Note.3| 5000 meters/OVC II
****SAFETY & **EMC (Note.4)|
SAFETY STANDARDS| IEC62368-1, UL62368-1, EAC TP TC 004 approved
WITHSTAND VOLTAGE| IP/OP – Chassis : 0.5KVac ; IP/OP- Relay : 0.5KVac ;
Relay – Chassis : 0.5KVac
ISOLATION RESISTANCE| IP/OP – Chassis, IP/OP- Relay, Relay –
Chassis:>100M Ohms / 500Vdc / 25℃/ 70% RH
**EMC EMISSION| Parameter| Standard| Test Level /
Note
Conducted| BS EN/EN55032(CISPR32)| Class B
Radiated| BS EN/EN55032(CISPR32)| Class B
Voltage Flicker| —–| —–
Harmonic Current| —–| —–
****EMC IMMUNITY| BS EN/EN55035, BS
EN/EN61000-6-2(BS EN/EN50082-2)
Parameter| Standard| Test Level / Note
ESD| BS EN/EN61000-4-2| Level 4, 15KV air ; Level 3, 8KV contact; criteria A
Radiated| BS EN/EN61000-4-3| Level 3, 10V/m ; criteria A
EFT / Burst| BS EN/EN61000-4-4| Level 3, 2KV ; criteria A
Surge| BS EN/EN61000-4-5| Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-
Chassis ;criteria A
Conducted| BS EN/EN61000-4-6| Level 3, 10V ; criteria A
Magnetic Field| BS EN/EN61000-4-8| Level 4, 30A/m ; criteria A
****OTHERS| MTBF| 1836.0K hrs min. Telcordia SR-332 (Bellcore)
; 482.1K hrs min. MIL-HDBK-217F (25℃)
DIMENSION| 32125.2102mm (WHD)
PACKING| 0.35Kg;28psc/10.8Kg/1.24CUFT
****NOTE**| 1. All parameters NOT specially mentioned are
measured at normal input (12V/24V/48V), rated load and 25℃ of ambient
temperature.2. Derating may be needed over high ambient temperature. Please
check the derating curve for more details.3. 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).4. The power supply is considered
as an independent unit, but the final equipment still need to re-confirm that
the whole system complies with the EMC directives. For guidance on how to
perform these EMC tests, please refer to “EMl testing of component power
supplies.”(as available on
https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf
)※ Product Liability
Disclaimer：For detailed information, please refer to
https://www.meanwell.com/serviceDisclaimer.aspx
Block Diagram
DC OK Relay Contact
| Contact Ratings (max.) | 30V/1A resistive load |
|---|---|
| Contact Close(DC OK) | PSU turns on |
| Contact Open(DC Fail) | PSU turns off / over or under input voltage |
Derating Curve
Output Derating VS Input Voltage
Typical Application Notes
1+1 Redundancy:
Using 1 more PSU as the redundant unit
1+N Redundancy:
Using more PSUs as the redundant units to increase the reliability
**Single Use:
**
Connecting only one PSU to one DRDN20 to reduce the stress of the and hence
increase the reliability
Mechanical Specification
-
Side View
-
Top View
-
**Front View
**
- **Side View
**
- Bottom View
Terminal Pin No. Assignment (TB3
| Pin No. | Assignment |
|---|---|
| 1,2 | Alarm1 DC OK |
| 3,4 | Alarm2 DC OK |
| 5 | FG |
| 6,7 | DC output +Vout |
| 8 | DC output -Vout |
Installation Instruction
ADMISSIBLE DIN-RAIL:TS35/7.5 OR TS35/15
(For reference only. Not included with unit.)
Back View
This series fits DIN rail TS35/7.5 or TS35/15.
For installation details, please refer to the Instruction manual
Installation Manual
Please refer to : http://[www.meanwell.com](http://www.meanwell.com)/manual.html
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