MEANWELL DR

DR-RDN20
20A Power Supply Redundancy Module
Features :
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
DR-RDN20
OUTPUT
INPUT
FUNCTION
ENVIRONMENT
REVERSE VOLTAGE (max.)
30V
OUTPUT CURRENT (max.)
20A
VOLTAGE DROP
0.5V
LED INDICATORS
Two green LEDs indicating each input is "OK or fail"
INPUT VOLTAGE RANGE
21 ~ 28V
NUMBER OF INPUTS
Two
INPUT CURRENT (max.)
20A per input
INPUT VOLTAGE ALARM
When input is > 20V( 5%) or < 30V( 5%) relay contacts
RELAY CONTACT RATING (max.) 30VDC, 1A
WORKING TEMP.
-20 ~ +70
WORKING HUMIDITY
20 ~ 90% RH non condensing
STORAGE TEMP., HUMIDITY -40 ~ +85
, 10 ~ 95% RH
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes ; Mouning: Compliance to IEC60068-2-6
VIBRATION
Terminal-Chassis :0.5KVAC, Relay Contacts-Terminal :0.5KVAC
WITHSTAND VOLTAGE
Terminal-Chassis :>100M Ohms / 500VDC / 25 / 70% RH
SAFETY & ISOLATION RESISTANCE
EMI CONDUCTION & RADIATION Compliance to EN55022 (CISPR22) Class B
EMC
(Note 2)
Compliance to EN61000-3-2,-3
HARMONIC CURRENT
EMS IMMUNITY
MTBF
OTHERS
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
DIMENSION
PACKING
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)
NOTE
Typical Application Notes
2. 1+N Redundancy: Using more PSUs as the redundant units to increase the reliability
1. 1+1 Redundancy
Using 1 more PSU as the redundant unit
PSU
PSU
PSU
PSU
PSU
PSU
PSU
PSU
..............
Vin A
Vin B
DR-RDN20
Vin A
Vin B
DR-RDN20
Vout
Vout
Vin A
Vin B
DR-RDN20
DR-RDN20
Vout
Vout
Load
Load
3. Single Use: Connecting only one PSU to one DR-RDN20 to reduce the stress of the diodes and hence increase the reliability
PSU
Vin A
PSU
Vin B
Vin A
Vin B
DR-RDN20
Vout
DR-RDN20
Vout
Load
File Name:DR-RDN20-SPEC 2010-10-18
DR-RDN20
20A Power Supply Redundancy Module
Mechanical Specification
Unit:mm
100
Case No.923C
125.2
55.5
1
2
3
4
5
6
LED
TB1
TB2
1
2
3
4
Terminal Pin No. Assignment (TB1)
35
Pin No.
1
2
3,4
5
6
ADMISSIBLE DIN-RAIL:TS35/7.5 OR TS35/15
Assignment
Vout+
VoutVinVin B+
Vin A+
Terminal Pin No. Assignment (TB2)
Pin No.
1
2
3
4
Assignment
Alarm B1
Alarm B2
Alarm A1
Alarm A2
Block Diagram
Vout+
B2
RELAY
B
Vin/Vout-
+
Alarm B
B1
Vin B+
A2
RELAY
A
+
Alarm A
A1
Vin A+
Derating Curve
100
80
LOAD (%)
60
40
20
-20
0
10
20
30
45
50
60
70 (VERTICAL)
AMBIENT TEMPERATURE ( )
File Name:DR-RDN20-SPEC 2010-10-18