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Mean Well DRC-40B Power Supply 40.02W 27.6V 950mA
Overview
DRC-40B is the CH1: 27.6V / CH2: 27.6V output model of this series: rated current CH1: 0.95A / CH2: 0.5A, rated power 40.02W, typical efficiency 87%.
DRC-40 is a 40W AC/DC DIN rail type security power supply series. In addition to the primary output, there is a charger output with a smaller rated current, enabling the backup power supply application the security access systems require. DRC-40 accepts the universal input between 90VAC and 264VAC, and supplies 13.8VDC and 27.6VDC at output, respectively. With the efficiency up to 87%, it can operate with air convection cooling under -30℃ through 70℃. In addition to the key protection features such as overload protection, over voltage protection, battery low cut off, and battery reverse polarity protection (by fuse), the alarm signal for AC OK and battery low signaling is provided, via TTL open collector output for the standard model ( via relay contact output as the optional model), to facilitate the system design.
Features
- Universal AC input / Full range
- Protections: Short circuit / Overload / Over voltage
- Battery low protection / Battery reverse polarity protection by fuse
- Can be installed on DIN rail TS-35/7.5 or 15
- Alarm signal for AC OK and Battery low (via TTL open collector, optional via relay)
- Cooling by free air convection
- Pass LPS
- LED indicator for power on
- 100% full load burn-in test
- 3 years warranty
Specifications
OUTPUT
- OUTPUT NUMBER
- CH1 / CH2
- DC VOLTAGE
- CH1: 27.6V / CH2: 27.6V
- RATED CURRENT
- CH1: 0.95A / CH2: 0.5A
- CURRENT RANGE
- CH1: 0 ~ 1.45A / CH2: --------
- RATED POWER
- 40.02W
- RIPPLE & NOISE (max.)Note.2
- CH1: 200mVp-p / CH2: --------
- VOLTAGE ADJ. RANGE
- CH1:24 ~ 30V
- VOLTAGE TOLERANCENote.3
- CH1: ±1.0% / CH2: --------
- LINE REGULATION
- CH1: ±0.5% / CH2: --------
- LOAD REGULATION
- CH1: ±0.5% / CH2: --------
- SETUP, RISE TIMENote.4
- 400ms, 50ms/230VAC 800ms, 50ms/115VAC at full load
- HOLD UP TIME (Typ.)
- 50ms/230VAC 10ms/115VAC at full load
INPUT
- VOLTAGE RANGE
- 90 ~ 264VAC 127 ~ 370VDC [DC input operation possible by connecting AC/L(+), AC/N(-)]
- FREQUENCY RANGE
- 47 ~ 63Hz
- EFFICIENCY (Typ.)
- 87%
- AC CURRENT (Typ.)
- 0.8A/115VAC 0.6A/230VAC
- INRUSH CURRENT (Typ.)
- COLD START 30A/115VAC 60A/230VAC
PROTECTION
- OVERLOAD
- 105 ~ 150% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
- OVER VOLTAGE
- CH1:28.98 ~ 37.26V Protection type : Shut down o/p voltage, re-power on to recover
- BATTERY CUT OFF
- 20±1V
FUNCTION
- AC OK
- Open collector output, CONTACT : AC OK ; CUT OFF : AC Fail ; max. rating : 50V/30mA
- BATTERY LOW
- Open collector output, CUT OFF : Battery ; CONTACT : Battery Low ; max. rating : 50V/30mA; Battery low voltage : < 22V
ENVIRONMENT
- WORKING TEMP.
- -30 ~ +70℃ (Refer to "Derating Curve")
- WORKING HUMIDITY
- 20 ~ 90% RH non-condensing
- STORAGE TEMP., HUMIDITY
- -40 ~ +85℃, 10 ~ 95% RH
- TEMP. COEFFICIENT
- ±0.03%/℃ (0 ~ 55℃) on CH1 output
- VIBRATION
- 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
SAFETY & EMC (Note 5)
- SAFETY STANDARDS
- UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004, AS/NZS 60950.1 approved
- WITHSTAND VOLTAGE
- I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
- ISOLATION RESISTANCE
- I/P-O/P, I/P-FG, O/P-FG: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, BS EN/EN55035, BS EN/EN61204-3, light industry level, EAC TP TC 020
OTHERS
- MTBF
- 2496.2K hrs min. Telcordia SR-332 (Bellcore) ; 536.6K hrs min. MIL-HDBK-217F (25℃)
- DIMENSION
- 40*90*100mm (W*H*D)
- PACKING
- 0.3Kg; 42pcs/13.6Kg/0.82CUFT
Test conditions and notes8
- 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
- 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μF & 47μF parallel capacitor.
- 3. Tolerance : includes set up tolerance, line regulation and load regulation.
- 4. Length of set up time is measured at cold first start. Turning ON/OFF the power supply may lead to increase of the set up time.
- 5. 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 )
- 6. 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, 15mm clearance is recommended.
- 7. 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).
- 8.The battery voltage is lower than the CUTOFF voltage and cannot perform AC reset charging.
Technical drawings
Typical applications
- Security system
- Emergency lighting system
- Alarm system
- DC UPS system
- Central monitoring system
- Access systems
Downloads
Datasheet1
Certificates6
Test reports1
Catalogues1
FAQ
What is the Mean Well DRC-40B designed for?
The Mean Well DRC-40B is a 40.02W DIN rail power supply intended for security and other control-panel applications that need a 27.6V DC output. Its UPS-oriented feature set, including battery cut-off protection and AC OK and battery low alarm signals, makes it suited to systems where power status monitoring matters.
What output does the DRC-40B provide?
This model provides a rated 27.6V DC output with a rated current of 0.95A, for a total power rating of 40.02W. The output voltage is adjustable from 24V to 30V.
What protection features are included on the DRC-40B?
The DRC-40B includes overload protection (105~150% of rated power, hiccup mode with automatic recovery) and over-voltage protection (28.98~37.26V, shuts down the output; re-power on to recover). It also has battery cut-off at 20±1V, which helps distinguish it from a basic DIN rail power supply.
What input range does the Mean Well DRC-40B support?
The unit accepts a universal input range of 90 to 264VAC, and it also supports 127 to 370VDC input. This wide range makes it practical for use across varied mains power environments without needing a region-specific version.
Is the DRC-40B suitable for demanding industrial or enclosure environments?
The DRC-40B is rated for operation from -30°C to +70°C, with output derating at higher ambient temperatures per the derating curve. It is also designed for DIN rail TS-35/7.5 or 15 mounting, which fits typical panel and enclosure environments where compact DIN rail hardware is preferred.
What certifications and compliance standards does the DRC-40B meet?
This model is approved to UL62368-1, TUV BS EN/EN62368-1, EAC TP TC 004, and AS/NZS 60950.1 safety standards. For EMC, it meets EN55032 Class B and related EN61000 immunity and harmonic standards listed in the specification.
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