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

metal caseeconomical modelslim sizeEMC EN55022 class B

SKU NDR-120-12

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NDR-120-12

NDR-75-12 75W 12V Low stock

NDR-120-12 120W 12V Low stock

Product variants

In stock

Overview

NDR-120-12 is the 12V output model of this series: rated current 10A, rated power 120W, typical efficiency 85.5%.

NDR-120 is one economical slim 120W DIN rail power supply series, adapt to be installed on TS-35/7.5 or TS-35/15 mounting rails. The body is designed 40mm in width, which allows space saving inside the cabinets. The entire series adopts the full range AC input from 90VAC to 264VAC and conforms to BS EN/EN61000-3-2, the norm the European Union regulates for harmonic current. NDR-120 is designed with metal housing that enhances the unit's power dissipation. With working efficiency up to 89%, the entire series can operate at the ambient temperature between -20℃ and 70℃ under air convection. It is equipped with constant current mode for over-load protection, fitting various inductive or capacitive applications. The complete protection functions and relevant certificates for industrial control apparatus (UL508, TUV BS EN/EN62368-1, and etc.) make NDR-120 a very competitive power supply solution for industrial applications.

Features

Universal AC input / Full range
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
100% full load burn-in test
3 years warranty

Specifications

NDR-120-12Specifications from the official datasheet (2026-04-03 edition)

OUTPUT

DC VOLTAGE: 12V
RATED CURRENT: 10A
CURRENT RANGE: 0 ~ 10A
RATED POWER: 120W
RIPPLE & NOISE (max.)^Note.2: 100mVp-p
VOLTAGE ADJ. RANGE: 12 ~ 14V
VOLTAGE TOLERANCE^Note.3: ±2.0%
LINE REGULATION: ±0.5%
LOAD REGULATION: ±1.0%
SETUP, RISE TIME: 1200ms, 60ms/230VAC 2500ms, 60ms/115VAC at full load
HOLD UP TIME (Typ.): 16ms/230VAC 10ms/115VAC at full load

INPUT

VOLTAGE RANGE^Note.6: 90 ~ 264VAC 127 ~ 370VDC [DC input operation possible by connecting AC/L(+), AC/N(-)]
FREQUENCY RANGE: 47 ~ 63Hz
EFFICIENCY (Typ.): 85.5%
AC CURRENT (Typ.): 2.25A/115VAC 1.3A/230VAC
INRUSH CURRENT (Typ.): 20A/115VAC 35A/230VAC
LEAKAGE CURRENT: <1mA / 240VAC

PROTECTION

OVERLOAD: 105 ~ 130% rated output power Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE: 14 ~ 17V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: Shut down o/p voltage, re-power on to recover

ENVIRONMENT

WORKING TEMP.: -20 ~ +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 (Note 4)

SAFETY STANDARDS: UL508, TUV BS EN/EN62368-1, EAC TP TC 004 approved;(meet BS EN/EN60204-1)
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), BS EN/EN61204-3 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/EN61000-6-2 (BS EN/EN50082-2), BS EN/EN61204-3, heavy industry level, EAC TP TC 020

OTHERS

MTBF: 2636.8K hrs min. Telcordia SR-332 (Bellcore) ; 453.3K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 40*125.2*113.5mm (W*H*D)
PACKING: 0.6Kg; 20pcs/13Kg/1.0CUFT

Test conditions and notes7

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. 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. 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. Derating may be needed under low input voltage. Please check the derating curve for more details.
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).

Technical drawings

NDR-120-12 Block Diagram — Block Diagram

NDR-120-12 Derating Curve — Derating Curve

NDR-120-12 Mechanical Specification — Mechanical Specification

Typical applications

Industrial control system
Semiconductor fabrication equipment
Factory automation
Electro-mechanical apparatus

Downloads

Certificates4

CB Certificate (NDR-120)(EN) PDF Download

UL Certificate (NDR-120)(EN) PDF Download

EMC Certificate (NDR-120)(EN) PDF Download

TUV Certificate (NDR-120)(EN) PDF Download

Test reports1

Test Report (ENDR-120-12)(EN) PDF Download

Catalogues2

Mean Well Catalog (Industrial) PDF Download

Mean Well DIN RAIL Catalog PDF Download

FAQ

Can I use the NDR-120-12 for 12V PLC I/O modules and relays in a control panel?

Yes, this model is a 12V DIN rail power supply rated for 120W and 10A, which aligns with 12V control-panel loads. Its slim 40.0 mm profile and DIN rail form factor also make it practical for industrial automation cabinets where space is limited.

Is the NDR-120-12 a good fit for 12V building management or panel-based control systems?

It can be used where the control system requires a 12V DC supply and the total load stays within 120W or 10A. The 90-264VAC input range also suits sites that need one DIN rail supply for a wide AC input range inside a control enclosure.

Can this power supply be used for 12V industrial automation accessories inside a DIN rail cabinet?

Yes, it is intended for DIN rail mounting and is suited to protected cabinet applications that use 12V DC. The metal case, slim size, and EMC EN55032 Class B feature make it relevant for enclosed automation panels where orderly DIN rail layout matters.

How does the NDR-120-12 compare with other Mean Well NDR DIN rail models?

Within the listed siblings, the NDR-120-12 is 120W, 12V, 10A. Other options are NDR-120-24 at 120W, 24V, 5A; NDR-120-48 at 120W, 48V, 2.5A; NDR-240-24 at 240W, 24V, 10A; NDR-240-48 at 240W, 48V, 5A; NDR-480-24 at 480W, 24V, 20A; NDR-480-48 at 480W, 48V, 10A; NDR-75-12 at 75.6W, 12V, 6.3A; NDR-75-24 at 76.8W, 24V, 3.2A; and NDR-75-48 at 76.8W, 48V, 1.6A.

Can the NDR-120-12 be used in hot or cold control cabinet environments?

The specified operating temperature range is -20°C to +70°C, so it covers a broad range of indoor cabinet conditions. No IP rating is provided in the listed specs, so it is best suited to protected control cabinets or enclosures rather than exposed outdoor or washdown areas.

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Model	Power	Voltage	Current	IP Rating
Mean Well NDR-120-24 Single Output Industrial Power Supply 120W 24V 5A - DIN Rail	120W	24V	5A	IP20	View
Mean Well NDR-120-48 Single Output Industrial Power Supply 120W 48V 2.5A - DIN Rail	120W	48V	2.5A	IP20	View

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