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Mean Well

Mean Well SDR-120-12 Single Output Industrial Power Supply 120W 12V 10A - DIN Rail

SKU SDR-120-12
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SDR-120-12
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Overview

SDR-120-12 is the 12V output model of this series: rated current 10A, rated power 120W, typical efficiency 89%.

Features

  • High efficiency 91% and low power dissipation
  • 150% peak load capability
  • Built-in active PFC function, PF>0.93
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • Can be installed on DIN rail TS-35/7.5 or 15
  • UL 508 (industrial control equipment) approved
  • BS EN/EN61000-6-2(BS EN/EN50082-2) industrial immunity level
  • Built-in DC OK relay contact
  • 100% full load burn-in test
  • 3 years warranty

Specifications

SDR-120-12Specifications from the official datasheet (2025-06-09 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
10A
CURRENT RANGE
0 ~ 10A
RATED POWER
120W
PEAK CURRENT
15A
PEAK POWERNote.6
180W (3 sec.)
RIPPLE & NOISE (max.)Note.2
100mVp-p
VOLTAGE ADJ. RANGE
12 ~ 14V
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±1.0%
SETUP, RISE TIME
1500ms, 60ms/230VAC 3000ms, 60ms/115VAC at full load
HOLD UP TIME (Typ.)
20ms/230VAC 20ms/115VAC at full load

INPUT

VOLTAGE RANGENote.7
88 ~ 264VAC 124 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
POWER FACTOR (Typ.)
0.93/230VAC 0.96/115VAC at full load
EFFICIENCY (Typ.)
89%
AC CURRENT (Typ.)
1.4A/115VAC 0.7A/230VAC
INRUSH CURRENT (Typ.)
35A/115VAC 70A/230VAC
LEAKAGE CURRENT
<1mA / 240VAC

PROTECTION

OVERLOAD
Normally works within 110 ~ 150% rated output power for more than 3 seconds and then shut down o/p voltage >150% rated power, constant current limiting with auto-recovery within 3 seconds and shut down o/p voltage after 3 seconds
OVER VOLTAGE
14 ~ 17V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE
95℃±5℃ (TSW) detect on heatsink of power switch Protection type : Shut down o/p voltage, recovers automatically after temperature goes down

FUNCTION

DC OK REALY CONTACT RATINGS (max.)
60Vdc/0.3A, 30Vdc/1A, 30Vac/0.5A resistive load

ENVIRONMENT

WORKING TEMP.
-25 ~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +85℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
Component:10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6

SAFETY & EMC

SAFETY STANDARDS
UL508, TUV BS EN/EN62368-1, AS/NZS 62368.1, EAC TP TC 004, BSMI CNS15598-1 approved;(meet BS EN/EN60204-1)
WITHSTAND VOLTAGE
I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC O/P-DC OK: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), BS EN/EN61204-3 Class B, BS EN/EN61000-3-2,-3, EAC TP TC 020, CNS15936 Class B
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, BS EN/EN61000-6-2 (BS EN/EN50082-2), BS EN/EN61204-3, heavy industry level, EAC TP TC 020, SEMI F47 approved

OTHERS

MTBF
1764.6K hrs min. Telcordia SR-332 (Bellcore) ; 292.1K hrs min. MIL-HDBK-217F (25℃)
DIMENSION
40*125.2*113.5mm (W*H*D)
PACKING
0.67Kg; 20pcs/14.4Kg/1.0CUFT
Test conditions and notes8
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 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. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. 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. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf )
  5. 5. 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.
  6. 6. 3 seconds max., please refer to peak loading curves.
  7. 7. Derating may be needed under low input voltage. Please check the derating curve for more details.
  8. 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).

Technical drawings

SDR-120-12 Mechanical Specification
Mechanical Specification
SDR-120-12 Block Diagram
Block Diagram
SDR-120-12 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the Mean Well SDR-120-12 for a PLC or industrial control panel that needs 12V DC?

Yes, this model is a fit for PLC and industrial control panels that require a 12V DC supply and stay within 10A and 120W total load. It is a DIN rail power supply, and its 125.2 x 113.5 x 40.0 mm housing suits slim control cabinet layouts.

Is the SDR-120-12 suitable for building management or cabinet-based control systems?

It can be used in building management and cabinet-based control systems when the equipment needs 12V DC and the total demand does not exceed 10A or 120W. The 88-264VAC input range also makes it suitable for standard AC-fed control enclosures.

Can this 12V DIN rail power supply run multiple 12V industrial automation loads in one enclosure?

It can support multiple 12V automation loads in one enclosure if the combined load remains within 10A and 120W. As a single output DIN rail unit with a 125.2 x 113.5 x 40.0 mm profile, it is intended for compact industrial control cabinet use.

How does the SDR-120-12 compare with other Mean Well SDR series models?

The SDR-120-12 is 120W at 12V and 10A (adjustable 12-14V). Its SDR-120 series siblings are the SDR-120-24 at 120W, 24V, 5A (24-28V adjustable) and the SDR-120-48 at 120W, 48V, 2.5A (48-55V adjustable). All three share the 88-264VAC input with PFC, DC OK relay contact and 40 x 125.2 x 113.5 mm housing; typical efficiency is 89% for the 12V model, 91% for the 24V and 90.5% for the 48V model.

Is the SDR-120-12 meant for indoor control cabinets or exposed outdoor conditions?

It is designed for use in control cabinets and enclosures, with DIN rail mounting and an operating temperature range of -25°C to +70°C (with derating per the derating curve). No IP rating is listed on the datasheet, so it should be installed as an enclosure-mounted industrial power supply rather than exposed outdoor equipment.

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Mean Well SDR-120-12 Single Output Industrial Power Supply 120W 12V 10A - DIN Rail
Mean Well

Mean Well SDR-120-12 Single Output Industrial Power Supply 120W 12V 10A - DIN Rail

Log in to see price

SDR-120-12 is the 12V output model of this series: rated current 10A, rated power 120W, typical efficiency 89%.

Features

  • High efficiency 91% and low power dissipation
  • 150% peak load capability
  • Built-in active PFC function, PF>0.93
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • Can be installed on DIN rail TS-35/7.5 or 15
  • UL 508 (industrial control equipment) approved
  • BS EN/EN61000-6-2(BS EN/EN50082-2) industrial immunity level
  • Built-in DC OK relay contact
  • 100% full load burn-in test
  • 3 years warranty

Model

  • 75W 12V
  • 120W 12V
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