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Mean Well DR-UPS40 DC UPS Module Power 40A Supply - DIN Rail
Overview
DR-UPS40 is the model of this series: rated current 40A.
Features
- Battery controller for DIN Rail UPS system
- Parallel connection to DC BUS
- Suitable for 24V system up to 40A
- Installed on DIN Rail TS35 / 7.5 or 15
- Built-in battery test function
- Battery polarity protection
- Relay contact signal output and LED indicator for DC BUS OK, Battery Fail, and Battery Discharge
- Cooling by free air convection
- 3 years warranty
Specifications
DC INPUT / DC BUS
- DC VOLTAGE (Typ.)Note.5
- 24 ~ 29V
- RATED CURRENT
- 40A
BATTERY INPUT / OUTPUT
- VOLTAGE RANGE (Typ.)
- 21 ~ 29V
- CURRENT RANGE
- 0 ~ 40A
- CHARGE CURRENT (Typ.)Note.4
- 2A
- EXTERNAL BATTERY (Typ.)
- 4 / 7 / 12AH / 24V
FUNCTION
- RELAY CONTACT RATING (max.)
- 30VDC, 1A
- DC BUS OK
- Relay contact : Short when DC voltage between 21~29V(±3%), relay contacts LED(Green) : DC BUS OK : light ; DC BUS fail : dark
- BATTERY FAILNote.2
- Short when battery voltage falls below 21.9V(±3%) 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<2.0A
ENVIRONMENT
- WORKING TEMP.
- -20 ~ +70℃
- WORKING HUMIDITY
- 20 ~ 90% RH
- STORAGE TEMP., HUMIDITY
- -20 ~ +85℃, 10 ~ 95% RH
- VIBRATION
- Component : 10 ~ 500Hz, 2G 10min./1cycle, 60min. each X, Y, Z axes ; Mounting : Compliance to IEC600068-2-6
SAFETY & EMC (Note 3)
- WITHSTAND VOLTAGE
- Terminal-Chassis :0.5KVAC, Relay Contacts-Terminal :0.5KVAC
- ISOLATION RESISTANCE
- Terminal-Chassis :>100M Ohms / 500VDC / 25℃/ 70% RH
- EMC EMISSION
- Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020
- EMC IMMUNITY
- Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, heavy industry level, criteria A, EAC TP TC 020
OTHERS
- MTBF
- 1365.7K hrs min. Telcordia SR-332 (Bellcore) ; 161.9K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 55.5*125.2*100mm (W*H*D)
- PACKING
- 0.55Kg; 20pcs/12Kg/1.49CUFT
Certifications & ratings
- Certification marks
- RCM, EAC, CE, UKCA
Test conditions and notes6
- 1. All parameters NOT specially mentioned are measured at rated load and 25℃ of ambient temperature.
- 2. Battery fail will only function at UPS mode with battery connected. Every 25 seconds, unit will send out test signal through "Battery Fail" relay contact and LED indicator once the battery is fail.
- 3. The power supply 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 360mm*360mm 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 )
- 4. Battery charging will be in progress when DC input > battery voltage.
- 5. DR-UPS40 will be in operation when DC input is applied at the beginning.
- 6. 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).
Technical drawings
Downloads
FAQ
Can I use the DR-UPS40 for a 24V industrial control cabinet with higher current demand?
Yes. The DR-UPS40 is a 40A DC UPS module for 24V systems: it takes a 24 ~ 29V DC input from your 24V power supply, is rated for 40A, and backs up the load from an external 24V battery (4 / 7 / 12AH) when the supply is interrupted. It mounts on TS35/7.5 or TS35/15 DIN rail for control cabinet installation.
Is the DR-UPS40 appropriate for building management or automation panels that run on 24V DC?
It can be a fit for 24V DC building management or industrial automation panels that need battery backup during an AC interruption, with a rated current of up to 40A. It works alongside a 24V power supply and an external 24V battery rather than replacing the supply. Buyers should confirm the panel is designed around a 24V DC bus.
Can the DR-UPS40 be used in a larger DIN rail power distribution section of a control enclosure?
Yes. Its 55.5 × 125.2 × 100 mm (W × H × D) dimensions and DIN rail mounting (TS35/7.5 or TS35/15) suit control enclosures that need a 24V, 40A DC UPS module on the rail. It weighs 0.55 kg and uses screw terminals for the battery and DC input plus relay contacts for DC OK, battery fail and battery discharge signals.
Is the DR-UPS40 suitable for enclosure use in harsher temperature conditions?
Its specified working temperature is -20°C to +70°C (20 ~ 90% RH), with load derating at higher ambient temperatures according to the sheet's derating curve. That makes it a practical option for enclosed control cabinets exposed to wider ambient temperature swings. It is a DIN rail component intended to be installed inside final equipment, not an outdoor-rated standalone housing.
How does the DR-UPS40 differ from DR series DIN rail power supplies?
The DR-UPS40 is not a power supply itself: it is a 40A DC UPS module that connects between a 24V power supply (24V/40A max.) and the load, charging an external 24V battery at 2A and switching to it when the input fails. It can also be combined with the DR-RDN20 redundancy module to back up both AC interruption and failure of a PSU. The key difference is battery backup rather than AC-to-DC conversion.
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