Mean Well RSP-320-12 Power Supply 320W 12V | Best Prices NZ

Overview

RSP-320-12 is the 12V output model of this series: rated current 26.7A, rated power 320.4W, typical efficiency 88%.

RSP-320 is a 320W single output enclosed type AC/DC power supply. This series operates for 88~264VAC input voltage and offers the models with the DC output mostly demanded from the industry. Each model is cooled by the built-in fan with fan speed control, working for the temperature up to 70℃.

Features

Universal AC input / Full range
Built-in active PFC function
High efficiency up to 90%
Forced air cooling by built-in DC Fan with fan speed control function
Protections: Short circuit / Overload / Over voltage / Over temperature
Operating altitude up to 5000 meters
Optional conformal coating
LED indicator for power on
3 years warranty

Specifications

RSP-320-12Specifications from the official datasheet (2026-09-04 edition)

OUTPUT

DC VOLTAGE: 12V
RATED CURRENT: 26.7A
CURRENT RANGE: 0 ~ 26.7A
RATED POWER: 320.4W
RIPPLE & NOISE (max.)^Note.2: 150mVp-p
VOLTAGE ADJ. RANGE: 10 ~ 13.2V
VOLTAGE TOLERANCE^Note.3: ±1.0%
LINE REGULATION: ±0.3%
LOAD REGULATION: ±0.5%
SETUP, RISE TIME: 1500ms, 50ms/230VAC 3000ms, 50ms/115VAC at full load
HOLD UP TIME (Typ.): 8ms at full load 230VAC /115VAC

INPUT

VOLTAGE RANGE^Note.4: 88 ~ 264VAC 124 ~ 370VDC
FREQUENCY RANGE: 47 ~ 63Hz
POWER FACTOR (Typ.): PF>0.95/230VAC PF>0.98/115VAC at full load
EFFICIENCY (Typ.): 88%
AC CURRENT (Typ.): 4A/115VAC 2A/230VAC
INRUSH CURRENT (Typ.): 20A/115VAC 40A/230VAC
LEAKAGE CURRENT: <1mA / 240VAC

PROTECTION

OVERLOAD: 105 ~ 135% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE: 13.8 ~ 16.2V Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE: Shut down o/p voltage, recovers automatically after temperature goes down

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 ~ 50℃ )
VIBRATION: 10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes
OPERATING ALTITUDE: 5000 meters

SAFETY & EMC (Note 6)

SAFETY STANDARDS: UL62368-1,TUV BS EN/EN62368-1,EAC TP TC 004, CCC GB4943.1,BSMI CNS15598-1, AS/NZS 60950.1, IS13252(Part1)/ IEC60950-1(except for 2.5V,48V),Dekra EN 61558-1/2-16,IEC 61558-1/2-16(for 12V or higher models) 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, CNS15936 , GB9254 Class B , GB17625.1,KN 32( only for 5V )
EMC IMMUNITY: Compliance to BS EN/ EN61000-4-2,3,4,5,6,8,11, BS EN/ EN55035, light industry level, EAC TP TC 020

OTHERS

MTBF: 1826.4K hrs min. Telcordia SR-332 (Bellcore) ; 192.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION: 215*115*30mm (L*W*H)
PACKING: 0.9Kg; 15pcs/14.5Kg/0.67CUFT

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. Derating may be needed under low input voltages. Please check the derating curve for more details.
5. 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).
6. The power supply is considered a component which will be installed into a final equipment. All the EMC tests are been executed by mounting the unit on a 360mm*360mm metal plate with 1mm of thickness. 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 )
7. For charging related applications, please consult Mean Well for details.
8. Strongly recommended that external output capacitance should not exceed 5000uF. (Only for: RSP-320-2.5/-3.3/-4/-5/-7.5/-12/-13.5/-15)

Technical drawings

RSP-320-12 Mechanical Specification — Mechanical Specification

RSP-320-12 Block Diagram — Block Diagram

RSP-320-12 Derating Curve — Derating Curve

Typical applications

Factory control or automation apparatus
Test and measurement instrument
Laser related machine
Burn-in facility
RF application

Downloads

Certificates4

UL Certificate (RSP-320)(EN) PDF Download

CB Certificate (RSP-320)(EN) PDF Download

TUV Certificate (RSP-320)(EN) PDF Download

EMC Certificate (RSP-320)(EN) PDF Download

Test reports1

Test Report (RSP-320-12)(EN) PDF Download

Catalogues2

Mean Well Catalog (Industrial) PDF Download

Mean Well Sign Panel Catalog PDF Download

FAQ

What kinds of equipment can the RSP-320-12 power at 12V?

The RSP-320-12 provides 320.4W at 12V with 26.7A output, suitable for powering networking switches, embedded computing modules, and light industrial control panels. Its 30 mm-high case (215.0 × 115.0 × 30.0 mm) is designed to be built into the final equipment.

What is the operating temperature range of the RSP-320-12?

The RSP-320-12 operates from -30°C to +70°C ambient, with load derating at higher temperatures per the derating curve. It holds UL62368-1, TÜV EN62368-1, CCC, BSMI, EAC, AS/NZS 60950.1 and EN/IEC 61558-1/2-16 approvals and is a component for installation inside end equipment.

How does the RSP-320-12 compare to other voltage options in the RSP-320 line?

The RSP-320 series shares the same 215.0 × 115.0 × 30.0 mm chassis and 88-264VAC input across voltage variants. The RSP-320-12 delivers 320.4W at 26.7A, while the RSP-320-24 provides 321.6W at 13.4A and the RSP-320-48 provides 321.6W at 6.7A. Lower voltage variants offer higher current ratings within the same power envelope.

Does the RSP-320-12 accept universal AC input?

Yes. The RSP-320-12 accepts 88-264VAC (or 124-370VDC), covering both 100V and 200V-class single-phase AC systems worldwide. This makes it suitable for global deployment without requiring voltage selection switches.

Payment & Security

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Model	Power	Voltage	Current
Mean Well RSP-320-24 Power Supply 320W 24V 13.4A	321.6W	24V	13.4A	View
Mean Well RSP-320-7.5 Power Supply 300W 7.5V 40A	300W	7.5V	40A	View
Mean Well RSP-320-5 Power Supply 300W 5V 60A	300W	5V	60A	View
Mean Well RSP-320-48 Power Supply 320W 48V 6.7A	321.6W	48V	6.7A	View
Mean Well RSP-320-4 Power Supply 240W 4V 60A	240W	4V	60A	View
Mean Well RSP-320-36 Power Supply 320W 36V 8.9A	320.4W	36V	8.9A	View
Mean Well RSP-320-3.3 Power Supply 198W 3.3V 60A	198W	3.3V	60A	View
Mean Well RSP-320-27 Power Supply 320W 27V 11.9A	321.3W	27V	11.9A	View
Mean Well RSP-320-2.5 Power Supply 320W 2.5V 60A	150W	2.5V	60A	View
Mean Well RSP-320-15 Power Supply 320W 15V 21.4A	321W	15V	21.4A	View
Mean Well RSP-320-13.5 Power Supply 320W 13.5V 23.8A	321.3W	13.5V	23.8A	View

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Mean Well RSP-320-12 Power Supply 320W 12V 26.7A

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Overview

Features

Specifications

OUTPUT

INPUT

PROTECTION

ENVIRONMENT

SAFETY & EMC (Note 6)

OTHERS

Technical drawings

Typical applications

Downloads

Certificates4

Test reports1

Catalogues2

FAQ

Payment & Security

Other RSP-320 Models

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Mean Well RSP-320-12 Power Supply 320W 12V 26.7A

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