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Mean Well

Mean Well NFM-10-24 Power Supply 10W 24V 420mA

SKU NFM-10-24
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Overview

NFM-10-24 is the 24V output model of this series: rated current 0.42A, rated power 10.08W, typical efficiency 79%.

Features

  • Universal AC input / Full range
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Ultra-miniature size, light weight
  • Cooling by free air convection
  • Isolation classⅡ
  • Medical safety approved (2 x MOPP between primary to secondary)
  • No load power consumption<0.5W
  • 100% full load burn-in test
  • Fixed switching frequency at 67KHz
  • High reliability
  • Suitable for BF application with appropriate system consideration
  • 3 years warranty

Specifications

NFM-10-24Specifications from the official datasheet (2022-09-20 edition)

OUTPUT

DC VOLTAGE
24V
RATED CURRENT
0.42A
CURRENT RANGE
0 ~ 0.42A
RATED POWER
10.08W
RIPPLE & NOISE (max.)Note.2
240mVp-p
VOLTAGE ADJ. RANGE
21.6 ~ 26.4V
VOLTAGE TOLERANCENote.3
±1.0%
LINE REGULATION
±0.5%
LOAD REGULATION
±0.5%
SETUP, RISE TIME
1800ms, 20ms/230VAC 1800ms, 20ms/115VAC at full load
HOLD UP TIME (Typ.)
100ms/230VAC 24ms/115VAC at full load

INPUT

VOLTAGE RANGE
85 ~ 264VAC 120 ~ 370VDC
FREQUENCY RANGE
47 ~ 440Hz
EFFICIENCY (Typ.)
79%
AC CURRENT (Typ.)
0.25A/115VAC 0.15A/230VAC
INRUSH CURRENT (Typ.)
COLD START 25A/115VAC 45A/230VAC
LEAKAGE CURRENTNote.6
Touch current < 80μA/264VAC

PROTECTION

OVERLOAD
Above 105% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
27.6 ~ 32.4V Protection type : Shut off o/p voltage, clamping by zener diode
OVER TEMPERATURENote.5
Tj 140℃ typically (U1) detect on main control IC Protection type : Shut down o/p voltage, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.
-20 ~ +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 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS
ANSI/AAMI ES60601-1,TUV EN60601-1, IEC60601-1, EAC TP TC 004 approved
ISOLATION LEVEL
Primary-Secondary: 2xMOPP
WITHSTAND VOLTAGE
I/P-O/P:4KVAC
ISOLATION RESISTANCE
I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to EN55011(CISPR11), EN55032 (CISPR32) Class B, EN61000-3-2,-3, EAC TP TC 020
EMC IMMUNITY
Compliance to EN61000-4-2,3,4,5,6,8,11, EN55035, EN60601-1-2, EN61204-3, medical level, EAC TP TC 020

OTHERS

MTBF
723.2Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
65*45*22mm (L*W*H)
PACKING
0.045Kg; 120pcs/6.4Kg/0.94CUFT
Test conditions and notes7
  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 0.1uf & 47uf 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.
  5. 5. The over temperature protection (OTP) is the built-in function of the control IC (U1). The activating level described above is based on the specification provided by the IC manufacturer.
  6. 6. Touch current was measured from primary input to DC output.
  7. 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

NFM-10-24 Mechanical Specification
Mechanical Specification
NFM-10-24 Block Diagram
Block Diagram
NFM-10-24 Derating Curve
Derating Curve

Downloads

FAQ

Can I use the NFM-10-24 to power a 24V PLC input or control circuit?

It can fit 24V control electronics that need a constant 24V output and stay within 0.42A and 10.08W. That makes it suitable for low-power industrial or automation control loads rather than heavier 24V equipment. Check that the total load stays inside the rated current and power.

Is the NFM-10-24 suitable for 24V industrial sensors or transmitters?

This model is intended for constant-voltage 24V loads and can support sensor or transmitter circuits that draw no more than 0.42A. With 10.08W available, it is a better fit for small instrumentation or control devices than for larger field hardware. Its wide 85-264VAC input also helps in facilities using different AC mains ranges.

Can I use this 24V power supply in a compact embedded or automation enclosure?

The housing is 65 x 45 x 22 mm and weighs 0.045 kg, so it is sized for compact equipment layouts. It is generally appropriate where a board or subsystem needs regulated 24V at modest power. Confirm the enclosure and load requirements match the 10.08W and 0.42A limits.

Is the NFM-10-24 rated for outdoor or harsh-environment use?

The stated operating temperature range is -20C to +70C, so the temperature range is broad for indoor equipment use. No IP rating is listed in the provided specs, so the product data does not identify it as outdoor, washdown, or weather-exposed rated. It is safer to treat it as a unit for protected environments unless the full product documentation says otherwise.

How does the NFM-10-24 compare with other NFM 24V models?

Within the listed siblings, the 24V options are NFM-05-24 at 5.52W and 0.23A, NFM-10-24 at 10.08W and 0.42A, and NFM-15-24 at 15.12W and 0.63A, with NFM-20-24 at 22.08W and 0.92A. The NFM-10-24 sits in the middle of that range for both output power and current. If your 24V load is above 0.42A, you would need to move up to a higher-output sibling.

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Mean Well

Mean Well NFM-10-24 Power Supply 10W 24V 420mA

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NFM-10-24 is the 24V output model of this series: rated current 0.42A, rated power 10.08W, typical efficiency 79%.

Features

  • Universal AC input / Full range
  • Protections: Short circuit / Overload / Over voltage / Over temperature
  • Ultra-miniature size, light weight
  • Cooling by free air convection
  • Isolation classⅡ
  • Medical safety approved (2 x MOPP between primary to secondary)
  • No load power consumption<0.5W
  • 100% full load burn-in test
  • Fixed switching frequency at 67KHz
  • High reliability
  • Suitable for BF application with appropriate system consideration
  • 3 years warranty
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