MEAN WELL DUPS20 20A DIN Rail Type Uninterruptible DC-UPS Module User Manual

: June 4, 2024
: MEAN WELL

Table of Contents

MEAN WELL DUPS20 20A DIN Rail Type Uninterruptible DC-UPS Module
Features
Description
Applications
Model Encoding
Specifications
Block Diagram
Derating Curve
Buffering Time
Mechanical Specification
Installation Instruction
Suggested Application
- Installation Manual
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MEAN WELL DUPS20 20A DIN Rail Type Uninterruptible DC-UPS Module

MEAN-WELL-DUPS20-Rail-Uninterruptible-DC-UPS-
Module

Features

Uninterruptible DC-UPS controller
Parallel connection to DC BUS (Power supply +DC-UPS Module + Batteries +Load)
Suitable for 24V system, up to 20A
2A Battery charging current
Allows 4AH-135AH lead-acid various battery capacities
Complete diagnostic and monitoring for DC BUS OK, battery discharge, battery fail
LED indicator for signal status
Protections: Battery reverse polarity protection & Short circuit(By inte
Battery discharge/Over discharge current
Cooling by free air convection
Width only by 40mm
3 years warranty

Description

The DUPs20 is a 20A DIN rail type DC-UPS module, and it is paired with a power supply and an external battery to achieve the backup function. When the AC mains fails or isinterrupted, the load will be immediately connected to the battery pack to avoid interruption and to ensure the continuous operation of the entire system (the operating time depends on the capacity of the battery pack). The main features of DUPS20 include: fast installation, small size (only 40mm wide)suitability for 24V battery packs and various capacities of 4AH-135AH, 2A battery charging current, low voltage disconnect for battery protection and more. The product is suitable for use in data centers, security systems, emergency lighting, wireless communication UPS, central monitoring systems, etc.

Applications

Industrial control system
Semiconductor fabrication equipment
Factory automation
Electro-mechanical apparatus

Model Encoding

Specifications

MODEL	DUPS20

DC UPS INPUT

| NORMAL INPUT VOLTAGE| 24Vdc
INPUT VOLTAGE RANGE| 24 ~ 29Vdc
RATED CURRENT| 20A

DC UPS OUTPUT

| VOLTAGE RANGE| 21 ~ 29Vdc
DISCHARGE CURRENT RANGE| 0 ~ 20A
CHARGING CURRENT| 2A

BATTERY

| NORMAL BATTERY VOLTAGE| 24Vdc ( 2 x 12Vdc in series or 1 x 24Vdc)
BATTERY TYPE| Lead-acid battery
EXTERNAL BATTERY CAPACITIES| 4AH ~ 135AH

PROTECTION

| BATTERY POLARITY| Protected by internal detection, No Damage, recovers automatically after fault conduction is removed

SHORT CIRCUIT

| This protection only works when batteries are not connected, No Damage. External fuse is recommended

when batteries are connected.

OVER DISCHARGE CURRENT| 21~23A,After 3 sec., unit will cut-off battery discharging by relay
BATTERY DEEP DISCHARGE| Cut-off battery discharging by relay

FUNCTION

| RELAY CONTACT RATINGS (max.)| 30VDC/1A resistive load

DC BUS OK

| Relay contact : Short when DC voltage between 21~29V(±2%), relay contacts
LED(Green) : DC BUS OK : light ; DC BUS fail : dark

BATTERY FAIL Note.2

| Short when battery voltage falls below 22V(±2%) or battery failure is observed through the battery test function, relay contacts
LED(Red) : Battery over-discharge warning or battery broken : light ; Battery OK : dark

BATTERY DISCHARGE

| Relay contact : Short when battery in discharge condition, relay contacts
LED(Yellow) : light : Battery discharging ; dark : Battery is not discharging or discharging current < 1.0A

ENVIRONMENT

| COOLING| Free air convection
WORKING TEMP. Note.3| -30 ~ +70℃ (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, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6
OPERATING ALTITUDE Note.4| 2000 meters/OVC II

SAFETY & EMC

(Note.5)

| SAFETY STANDARDS| 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

EMC IMMUNITY

| BS EN/EN55035, BS EN/EN61000-6-2, BS EN/EN61204-3
Parameter| Standard| Test Level / Note

ESD

| ****

BS EN/EN61000-4-2

| Level 3, 8KV air ; Level 2, 4KV contact; criteria B

Level 2, 4KV air ; Level 1, 2KV contact; criteria A

OTHERS

| MTBF| 421.0K hrs min. Telcordia SR-332 (Bellcore) ; 482.1K hrs min. MIL-HDBK-217F (25℃)
DIMENSION| 40125.2113.5mm (WHD)
PACKING| 0.31Kg; 20pcs/7.2Kg/1.16CUFT

NOTE

| 1. All parameters NOT specially mentioned are measured at normal input(24V) , rated load and 25℃ of ambient temperature.

2. Every 30 seconds, unit will test the battery.If the testing result is faulty, unit will turn on “Battery Fail” relay contact and “Red LED” indicator.

3. Derating may be needed over high ambient temperature. Please check the derating curve for more details.

4. The ambient temperature derating of 3.5℃I1000m with fanless models and of 5℃I1000m with fan models for operating altitude higher than 2000m(6500ft).

5.The unit 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 360*720mm 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 http:IIwww.meanwell.com)

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