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Mean Well DUPS20 DIN Series Uninterruptible DC-UPS Module 20A
Overview
DUPS20 is the model of this series: rated current 20A.
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 is interrupted, 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.
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 internal detection) / Battery discharge / Over discharge current
- Cooling by free air convection
- Width onlly by 40mm
- 3 years warranty
Specifications
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 when the battery < 21V
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 FAILNote.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 ALTITUDENote.4
- 2000 meters/OVC II
SAFETY & EMC (Note.5)
- SAFETY STANDARDS
- 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 Radiated BS EN/EN55032(CISPR32) Class B - EMC IMMUNITY
-
BS EN/EN55035, BS EN/EN61000-6-2, BS EN/EN61204-3
Parameter Standard Test Level 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 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, 0.5KV(DC input ports) 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
- 1252.0K hrs min. Telcordia SR-332 (Bellcore) ; 482.1K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 40*125.2*113.5mm (W*H*D)
- PACKING
- 0.31Kg; 20pcs/7.2Kg/1.0CUFT
Test conditions and notes5
- 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℃/1000m with fanless models and of 5℃/1000m 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 https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
Technical drawings
Typical applications
- Industrial control system
- Semiconductor fabrication equipment
- Factory automation
- Electro-mechanical apparatus
Downloads
FAQ
What does the Mean Well DUPS20 do?
The Mean Well DUPS20 is a DIN rail DC-UPS module designed to maintain power to a 24V DC load when AC mains power is lost or interrupted. It works with a separate power supply and external battery so critical equipment can continue operating without interruption.
What types of systems is the DUPS20 commonly used in?
This model is suited to applications that need continuous 24V DC power during outages. Typical examples include data centers, security systems, emergency lighting, wireless communication UPS applications, and central monitoring systems.
What battery range is supported by the DUPS20?
The DUPS20 is intended for 24V lead-acid battery packs (2 x 12V in series or 1 x 24V) and supports a wide capacity range from 4Ah to 135Ah. Actual backup runtime depends on the battery capacity and characteristics and on the load being supported.
What are the key electrical specifications of the DUPS20?
This model is rated for 20A with an output voltage range of 21 to 29V DC. It also provides a 2A battery charging current and cuts off battery discharging by relay when the battery drops below 21V to help protect the battery.
Is the DUPS20 a good choice where panel space is limited?
Yes. One of the notable features of the DUPS20 is its narrow DIN rail form factor, with a width of only 40mm, which helps in compact control cabinet layouts.
What operating temperatures can the DUPS20 handle?
The DUPS20 has an operating temperature range of -30°C to 70°C, with load derating needed at higher ambient temperatures (see the derating curve). That makes it suitable for a broad range of industrial environments, provided the rest of the system is also rated for the same conditions.
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