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Mean Well NDR-120-48 Single Output Industrial Power Supply 120W 48V 2.5A - DIN Rail

metal caseeconomical modelslim sizeEMC EN55022 class B

SKU NDR-120-48

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NDR-120-48

NDR-75-48 75W 48V Low stock

NDR-120-48 120W 48V Low stock

NDR-240-48 240W 48V Low stock

NDR-480-48 480W 48V Backorder

Product variants

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Overview

NDR-120-48 is the 48V output model of this series: rated current 2.5A, rated power 120W, typical efficiency 89%.

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-120-48Specifications from the official datasheet (2026-04-03 edition)

OUTPUT

DC VOLTAGE: 48V
RATED CURRENT: 2.5A
CURRENT RANGE: 0 ~ 2.5A
RATED POWER: 120W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE ADJ. RANGE: 48 ~ 55V
VOLTAGE TOLERANCE^Note.3: ±1.0%
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.): 89%
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: 56 ~ 65V 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-120-48 Block Diagram — Block Diagram

NDR-120-48 Derating Curve — Derating Curve

NDR-120-48 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-120-48)(EN) PDF Download

Catalogues2

Mean Well Catalog (Industrial) PDF Download

Mean Well DIN RAIL Catalog PDF Download

FAQ

Can I use the NDR-120-48 for a 48V PLC or industrial automation panel?

Yes, this model is a 48V DIN rail power supply rated for 120W and 2.5A output. Its slim 40.0 mm profile and DIN rail format make it a practical fit for compact PLC and industrial automation control panels using 48VDC loads.

Is the NDR-120-48 suitable for building management or access control cabinets that use 48VDC?

It can be a fit for building management and access control cabinets when the system requires 48VDC and stays within 2.5A and 120W. The DIN rail design and 125.2 × 113.5 × 40.0 mm housing suit control cabinet layouts where space is limited.

Can this 48V DIN rail power supply be used in a telecom or network control enclosure?

It is appropriate for telecom or network-related control enclosures that need a 48VDC supply up to 2.5A. The wide 90-264VAC input also helps when the enclosure is being specified for sites with different AC input conditions.

Is the NDR-120-48 meant for open-air use or for enclosed control cabinets?

This DIN rail model is better suited to protected control cabinets and electrical enclosures. The listed operating range is -20°C to +70°C, and the specs call out a metal case, but no ingress rating is provided here for exposed outdoor use.

How does the NDR-120-48 compare with other Mean Well NDR DIN rail models?

Within the NDR range, sibling options are NDR-75-12 at 75.6W 12V 6.3A, NDR-75-24 at 76.8W 24V 3.2A, NDR-75-48 at 76.8W 48V 1.6A, NDR-120-12 at 120W 12V 10A, NDR-120-24 at 120W 24V 5A, NDR-240-24 at 240W 24V 10A, NDR-240-48 at 240W 48V 5A, NDR-480-24 at 480W 24V 20A, and NDR-480-48 at 480W 48V 10A. The NDR-120-48 sits in the 48V branch at 120W with 2.5A output.

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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-120-12 Single Output Industrial Power Supply 120W 12V 10A - DIN Rail	120W	12V	10A	IP20	View

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