20A Power Supply Redundancy Module
Features :
DR-RDN20
Suitable for redundant operation of 24V system
Installed on DIN Rail TS35 / 7.5 or 15
Relay contact signal output and LED indicator for input failure alarm
Cooling by free air convection
3 years warranty
SPECIFICATION
MODEL
REVERSE VOLTAGE (max.)
OUTPUT
OUTPUT CURRENT (max.)
VOLTAGE DROP
LED INDICATORS
INPUT VOLTAGE RANGE
INPUT
NUMBER OF INPUTS
INPUT CURRENT (max.)
FUNCTION
INPUT VOLTAGE ALARM
WORKING TEMP.
ENVIRONMENT
WORKING HUMIDITY
VIBRATION
WITHSTAND VOLTAGE
DR-RDN20
30V
20A
0.5V
Two green LEDs indicating each input is "OK or fail"
21 ~ 28V
Two
20A per input
When input is > 20V( 5%) or < 30V( 5%) relay contacts
-20 ~ +70
20 ~ 90% RH non condensing
, 10 ~ 95% RH
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes ; Mouning: Compliance to IEC60068-2-6
Terminal-Chassis :0.5KVAC, Relay Contacts-Terminal :0.5KVAC
/ 70% RH
RELAY CONTACT RATING (max.)
30VDC, 1A
STORAGE TEMP., HUMIDITY
-40 ~ +85
Terminal-Chassis :>100M Ohms / 500VDC / 25
SAFETY & ISOLATION RESISTANCE
EMI CONDUCTION & RADIATION
Compliance to EN55022 (CISPR22) Class B
EMC
(Note 2)
HARMONIC CURRENT
EMS IMMUNITY
MTBF
DIMENSION
PACKING
Compliance to EN61000-3-2,-3
Compliance to EN61000-4-2,3,4,5,6,8,11; ENV50204, heavy industry level, criteria A
996.8Khrs min. MIL-HDBK-217F (25 )
55.5*125.2*100mm (W*H*D)
0.5Kg; 20pcs/11Kg/1.29CUFT
OTHERS
NOTE
1. All parameters NOT specially mentioned are measured at 24VDC input, rated load and 25 of ambient temperature.
2. 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. 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)
Typical Application Notes
1. 1+1 Redundancy
Using 1 more PSU as the redundant unit
PSU
PSU
2. 1+N Redundancy: Using more PSUs as the redundant units to increase the reliability
PSU
PSU
PSU
PSU
PSU
PSU
..............
Vin A
DR-RDN20
Vout
Load
Load
Vout
Vin B
DR-RDN20
Vout
Vin A
Vin B
DR-RDN20
Vout
Vin A
Vin B
DR-RDN20
3. Single Use: Connecting only one PSU to one DR-RDN20 to reduce the stress of the diodes and hence increase the reliability
PSU
PSU
Vin A
Vin B
DR-RDN20
Vout
Load
Vin A
Vin B
DR-RDN20
Vout
File Name:DR-RDN20-SPEC 2010-10-18
MEANWELL [ MEAN WELL ENTERPRISES CO., LTD. ]
