MEAN WELL DRDN20 DIN Rail Type Redundancy Module Owner's Manual

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			ORON20-▯
			▯ =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-Vou)t (max.)		0.25V
	PEAK CURRENT		0-30A per input SSec.
	EFFICIENCY (Typ.)		98%
	INPUT REVERSE CURRENT (max.)		1mA
	INPUT REVERSE VOLTAGE (max.)		40Vdc 40Vdc					40Vdc		65Vdc
OUTPUT	RATED CURRENT		0-20A, Continuous
	PEAK CURRENT (max.)		30A, 5Sec.
	CAPACITANCE (Typ.)		320 uF
	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.SVor >14.7V(± 5%)				<18V or >31V (± 5%)			<34.2Vor >63V ( ± 5%1
	RELAY		30Vdc/1A resistive load
	LEO STATUS DISPLAY		Green LED OK
ENVIRONMENT	COOLING		Free air connection
	WORKING TEMP.	Note.2	-40 – +ado’s (Referto’ Derating Curve”)
	WORKING HUMIDITY		5- 95%RH non-condensing
	STORAGE TEMP.		-40 – +85’C
	TEMP. COEFFICIENT		± 0 03%/’C 10 – 60′ Cl
	VIBRATION		Component:10- 500Hz, 5G 10 min./cycle 6,0min.						echelon, Y, Zaxes; Mounting: Compliance to IEC 61373
	OPERATING ALTITUDE	Note.3	5000 meters/OVC11
SAFETY & EMC (Note. 4)	SAFETY STANDARDS		IEC 6236-81, UL 62368-,1EAC TP TC 004 approved
	WITHSTAND VOLTAGE		IP/OP· Chassis: 0.5KVac; IP/OP-Relay: 0.5KVac ; Relay· Chassis: O.SKVac
	ISOLATION RESISTANCE		IP/OP· Chassis, IP/OP-Relay, Relay· Chassis:>10M0Ohms/ 500Vdc/ 25″C/ 70% RH
	EMC EMISSION		Parameter		Standard					Test Level Note
			Conducted		BS EN/EN55032(CISPR 32					Class B
			Radiated		BS EN/EN55032t(SCPR32					Class B
			Voltage Flicker		—–					—–
			Harmonic Current		-··					—–
	EMC IMMUNITY		BS EN/EN 55035, BS EN/EN 61000-6-2(BS EN/EN 50082-2)
			Parameter		Standard					Test Level Note
			ESD		BS EN/EN6100-4-2					Level 4,15KV air; Level 3, 8KV contact; criteria A
			Radiated		BS EN/EN 6100-4-3					Level3, 10V/m; criteria A
			EFT/ Burst		BS EN/EN 6100-4-4					Level3, 2KV; criteria A
			Surge		BS EN/EN6100-4-5					Level 3 1KV/line line; level 3 2KV/line- Line Chassis; criteria A
			Conducted		BS EN/EN 6100-4-6					Level 3, 10V; criteria A
			Magnetic Field		BS EN/EN6100-4-8					Level 4, 30A/m; criteria A
OTHERS	MTBF		1836.0Khrsmin. Telcordia SR-332 (Bellcore) ; 482.1K hrsmin. MIL-HDBK-217F(25’C)
	DIMENSION		32’125.21′ 02mm(W’H’ D)
	PACKING		0.35Kg;28ps/1c0.8Kg/1.24 CUT
NOTE	All parameters NOT specially mentioned are measured at normal input(12V/24V/48V), rated load and 25″C of ambient temperature. Operating may be needed over high ambient temperature. Please check the derating curve for more details. The ambient temperature derating of 3.•s cn ooom with fanless models and of 5’C/1000m with fan models for operating altitude higher than 2000m(6500f)t. The power supply is considered as an independent nit, 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 EMI testing of component power supplies.” (as available on https://www.meanwell.com//Upload/POF/EMl_slatement_en.pdf) ※ Product liability Disclaimer: For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx

Block Diagram

DC OK Rela Contact

Contact Ratinos (max.)	30V/1Aresistive load
Contact Close (DCOK)	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 PS Us as the redundant units to increase the reliability

Single Use:
Connecting only one PSU to one DRDN20 to reduce the stress of the MOSFET and hence increase the reliability

Mechanical Specification

Terminal Pin No. Assignment (TB 1,TB2)

CaseNo. 221 D Unit: mm

Pin No.	Assignment
1,2	Alarm1 DC OK
3,4	Alarm2 DC OK
5	FG
6,7	DC output +Vout
8	DC output •Vout

Terminal Pin No. Assignment (TB3)

PinNo.	Assignment
1	DC input +Vint
2	DC input -Vinl
3	DC input +Vln2
4	DC input -Vin2

Installation Instruction

This series fits DIN rail TS35/7.5 or TS35/15. For installation details, please refer to the Instruction manual.

ADMISSIBLE DIN-RAIL:TS35n .5 OR TS35/15 (For retc, once only. Not included with unit.)

Installation Manual

Please refer to: http://www.meanwell.com/manual.html

Customer Support

User Manual

Video

Documents / Resources

MEAN WELL DRDN20 DIN Rail Type Redundancy Module [pdf] Owner's Manual
DRDN20, DRDN20 DIN Rail Type Redundancy Module, DIN Rail Type Redundancy Module, Rail Type Redundancy Module, Redundancy Module, Module

References

User Manual

Features

Applications

GTIN CODE

Description