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Mean Well DRS-480-48 All-In-One Intelligent Security Power 480W 7.7A
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Mean Well DRS-480-48 All-In-One Intelligent Security Power 480W 7.7A
Overview
DRS-480-48 is the 48V output model of this series: typical efficiency 93.5%.
DRS-480 is a 480W AC/DC DIN rail type security power supply series. In addition to the primary output, there is an additional charger circuit that will automatically adjust charge current depending on the primary output current. DRS-480 accepts the universal input between 90VAC and 305VAC, and supports output 24VDC, 36VDC, and 48VDC nominal systems. With high efficiency up to 93.5%, it can operate with free air convection cooling under -30℃ through 70℃ ambient temperature. In addition to the key protection features such as overload protection, over voltage protection, battery low voltage disconnect, and battery reverse polarity protection, the DRS-480 also provides Form-C contacts and LED indicator alarm signals for AC-fail, battery low, charger fail, and DC-OK to allow easy integration into security systems that comply with local alarm codes.
Features
- Universal input 90~305VAC (277VAC available)
- All-in-one function with Power supply, DC-UPS, battery charger and status monitoring in ONE compact unit
- Signal and alarms design meet UL2524,NFPA 1221,BS EN/EN54-4 and GB17945 requirement, with adjustable parameters configurable by communication interface
- Form C relay contacts and LED indicators for AC Fail, Battery Low, Charger Fail, and DC-OK
- Load-dependent high speed battery charging
- Built-in MODBus or CANBus protocol
- Protections: Short circuit / Overload / Over voltage / Over temperature(auto derating) / Battery reverse polarity (No damage) / Battery cut off
- Battery low protection / Battery reverse polarity protection
- -30 ~ +70℃ wide operating temperature
- Cooling by free air convection
- Can be installed on DIN rail TS-35/7.5 or 15
- Charging curve can be set with SBP-001(only for CANBus model) (Smart programmer sold separately, please refer to: https://www.meanwell.com/webapp/product/search.aspx?prod=SBP-001)
- 20~100% charging current adjustable by VR
- 2 or 3-stage selectable by DIP S.W
- Suitable for lead acid and lithium-ion batteries
- 3 years warranty
Specifications
OUTPUT
- OUTPUT VOLTAGENote.2
- 48V
- LOAD CURRENT RANGE
- 0 ~ 10A
- BATTERY CURRENT (CC)(max.)
- 7.7A
- RECOMMENDED BATTERY CAPACITY(AMP HOURS)Note.3
- 10 ~ 100AH
- TOTAL OUTPUT POWERNote.4
- Combined power on all Channels must not exceed 480W, load has priority. 550W peak capability within 5s.
- RIPPLE & NOISE (max.)Note.5
- 480mVp-p
- VOLTAGE TOLERANCENote.6
- ±1.0%
- LINE REGULATION
- ±0.5%
- LOAD REGULATION
- ±0.5%
- SETUP RISETIMENote.7
- 2400ms, 1000ms/230VAC 2400ms, 1000ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 16ms/230VAC 10ms/115VAC at full load
INPUT
- VOLTAGE RANGE
- 90 ~ 305VAC 127 ~ 431VDC
- FREQUENCY RANGE
- 47 ~ 63Hz
- POWER FACTOR (Typ.)
- PF>0.95/230VAC PF>0.98/115VAC at full load
- EFFICIENCY (Typ.)
- 93.5%
- AC CURRENT (Typ.)
- 5.4A/115VAC 2.7A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 30A/115VAC 60A/230VAC
PROTECTION
- SHORT CIRCUIT
- Protection type: Constant current limiting, power will shutdown after 5 sec, re-power on to recover.
- OVERLOAD
- 105 ~ 135% rated output power Protection type: Constant current limiting, shutdown output voltage after 5 sec.
- OVER TEMPERATURE
- Automatically drop load with temperature only for bat. load. Protection type : Shut down o/p voltage, recover automatically after temperature goes down.
- OVER VOLTAGE
- Load main output : 64.8 ~ 74.5V Protection type : Shut down o/p voltage, re-power on to recover
- BATTERY CUT OFF
- 41.8±1V
- REVERSE POLARITY
- By internal MOSFET, no damage, recovers automatically after fault condition is removed.
FUNCTION
- FORM-C RELAY AC FAIL
- Signals AC failure and activates when input voltage drops below : 79~89VAC of 120AC, 132~187VAC of 220VAC. Relay contact output, ON : AC OK ; OFF : AC Fail ; max. rating : 30Vdc/1A
- FORM-C RELAY CHARGER FAIL
- Relay contact output, ON : Charger OK ; OFF : Charger Fail ; max. rating : 30Vdc/1A
- FORM-C RELAY DC OK
- Signals normal DC output and activates when output voltage > 90% rated value. Relay contact output, ON : DC OK ; OFF : DC Fail ; max. rating : 30Vdc/1A
- FORM-C RELAY BATTERY LOW/ ABNORMAL/ DISCONNECTED
- Relay contact output, ON : Battery OK ; OFF : Battery Low ; max. rating : 30Vdc/1A
- BATTERY LOW voltage
- Battery low voltage : < 44V±0.5V
- BATTERY START
- Restart system directly from battery and does not require AC power
- DC-UPS
- UPS switch to battery power within 10ms of AC failure
- ADJUSTABLE CHARGING CURRENT
- 20% ~ 100% charging current adjustable by VR
- BATTERY TEMPERATURE COMPENSATION
- The system can change the battery charging voltage by detecting the temperature (Please refer to page 9~10 for more details).
ENVIRONMENT
- WORKING TEMP.
- -30 ~ +70℃(Refer to “Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +85℃, 10 ~ 95% RH non-condensing
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 50℃ ) on Load output
- VIBRATION
- 10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes
- OPERATING ALTITUDENote.8
- 2000 meters / OVCⅢ
- OVER VOLTAGE CATEGORY
- Ⅲ; According to Dekra BS EN/EN62368-1; altitude up to 2000 meters
SAFETY & EMC
- SAFETY STANDARDS
- UL62368-1, Dekra BS EN/EN62368-1, RCM AS/NZS 62368.1, EAC TP TC 004 approved
- WITHSTAND VOLTAGE
- I/P-O/P: 4KVAC I/P-FG: 2KVAC O/P-FG: 1.5KVAC
- ISOLATION RESISTANCE
- I/P-O/P, I/P-FG, O/P-FG: 100M Ohms/500VDC/25℃/ 70%RH
- EMC EMISSION
-
Parameter Standard Test Level Conducted BS EN/EN55032 (CISPR32) Class B Radiated BS EN/EN55032 (CISPR32) Class B Harmonic Current BS EN/EN61000-3-2 ----- Voltage Flicker BS EN/EN61000-3-2 ----- - EMC IMMUNITY
-
BS EN/EN55035 , BS EN/EN61204-3, BS EN/EN61000-6-2(BS EN/EN50082-2)
Parameter Standard Test Level ESD BS EN/EN61000-4-2 Level 3, 8KV air; Level 2, 4KV 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, 1KV/Line-Line ;Level 3, 2KV/Line-Line-Chassis ;criteria A Conducted BS EN/EN61000-4-6 Level 3, 10V; criteria A Magnetic Field BS EN/EN61000-4-8 Level 4, 30A/m; criteria A - FIRE DETECTION AND FIRE ALARM SYSTEM
- Compliance to BS EN/EN54-4
OTHERS
- MTBF
- 556.6K hrs min. Telcordia SR-332 (Bellcore); 74.5K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 110*125.2*150.7mm (W*H*D)
- PACKING
- 1.92Kg; 6pcs/ 12.5Kg / 1.42CUFT
Test conditions and notes10
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
- 2. Variable with charger voltage when battery is connected.
- 3. This is Mean Well's suggested range. Please consult your battery manufacturer for their suggestions about maximum charging current limitation.
- 4. If load current increases, the system will prioritize load current demand and automatically reduce the battery charging current.
- 5. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
- 6. Tolerance : includes set up tolerance, line regulation and load regulation.
- 7. Length of setup time is measured at cold first start, Turning ON/OFF the power supply may lead to increase of the setup time.
- 8. 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).
- 9. Installation clearances : 40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently with full power. In case the adjacent device is a heat source, 15cm clearance is recommended.
- 10. 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 https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
Technical drawings
Typical applications
- Public safety battery back-up (Red box)
- Security system
- Emergency lighting system
- Alarm system
- Uninterruptible DC-UPS system, battery detection system
- Central monitoring system
- Industrial automation
Downloads
Datasheet1
FAQ
What is the Mean Well DRS-480-48 designed for?
The DRS-480-48 is an all-in-one intelligent security power unit that combines a 480W power supply, DC-UPS, battery charger, and status monitoring in one compact DIN rail model. It is aimed at security and power continuity applications where backup battery charging and alarm/status functions are important.
What are the main output specifications of the DRS-480-48?
This model provides a 48V DC output with a load current range of 0 to 10A and 480W total output power (550W peak within 5s), plus a maximum battery charging current of 7.7A. It is built for higher-power 48V applications that need both primary power and backup power support in a single unit.
What makes the DRS-480-48 different from a standard DIN rail power supply?
Unlike a standard DIN rail PSU, the DRS-480-48 integrates four functions in one unit: power supply, DC-UPS, battery charger, and status monitoring. It also includes relay contacts and LED indicators for conditions such as AC fail, battery low, charger fail, and DC-OK.
Is the DRS-480-48 suitable for battery-backed systems?
Yes. The DRS-480-48 is designed for battery-backed operation and supports both lead acid and lithium-ion batteries. It also offers selectable 2-stage or 3-stage charging and adjustable charging current from 20% to 100%, with load current given priority over battery charging.
Can the DRS-480-48 be used in demanding environmental conditions?
This model is rated for operation from -30°C to +70°C (refer to the derating curve), making it suitable for a wide range of industrial and security environments. The unit includes over-temperature protection with derating control, recovering automatically once the temperature drops.
What monitoring and communication features does the DRS-480-48 include?
The DRS-480-48 includes built-in status monitoring with Form C relay contacts and LED indicators for key alarm conditions. It also supports Modbus protocol as standard, with CANBus available as an option, and some parameters can be adjusted through the communication interface.
What input range and approvals does the DRS-480-48 have?
The DRS-480-48 accepts a universal 90-305VAC input range and also supports 127-431VDC input. It is approved to UL62368-1, Dekra BS EN/EN62368-1, RCM AS/NZS 62368.1 and EAC TP TC 004, and complies with BS EN/EN54-4 for fire detection and fire alarm systems.
Payment & Security
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Other DRS-480 Models
2 other models| Model | Power | Voltage | Current | IP Rating | Price | |
|---|---|---|---|---|---|---|
| Mean Well DRS-480-24 All-In-One Intelligent Security Power 480W 15.4A | 480W | 24V | 15.4A | IP20 | $208.89 | View |
| Mean Well DRS-480-36 All-In-One Intelligent Security Power 480W 10.2A | 480W | 36V | 10.2A | IP20 | $220.00 | View |
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