MEAN WELL Enclosed Power Supply RSP-500 Series Single Output with PFC Function

Product Item : RSP-500 series
Category：Enclosed Type
Wattage: 500W
Input Voltage: 85~264VAC or 120 ~ 370VDC
Output Current: 0 ~ 90A
Output Voltage: 3.3 ~ 48V
Product description：RSP-500 is a 500W single output enclosed type AC/DC power supply. This series operates for 85~264VAC input voltage and offers the models with the DC output mostly demanded from the industry.
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RSP-500 Series - 500W Single-Output Enclosed Power Supply with PFC

✓ In Stock3-Year WarrantyRemote Control18ms Hold-upBIS All Models

				Key Performance at a Glance
			
						500W
					
						Rated Power
					
						90.5%
					
						Max Efficiency
					
						PF>0.98
					
						Power Factor
					
						18ms
					
						Hold-up (230V)
					
						-30~70C
					
						Operating Temp
					
						8
					
						Output Models

Product Overview

The RSP-500 series is MEAN WELL's 500W 1U enclosed power supply with advanced system integration features. Built in a 230x127x40.5mm chassis, it delivers 500W through efficient DC fan cooling and includes remote ON/OFF control, remote sense compensation (up to 0.3V load wire drop), and an 18ms hold-up time - making it the most feature-rich RSP model for PLC and automation systems.

With 85~264VAC universal input (widest in RSP series), 70KHz PFC+PWM architecture, and PF>0.98, the RSP-500 achieves 90.5% peak efficiency at 48V. The overload protection uses constant current limiting (not hiccup mode like RSP-200/320) - maintaining output current under fault conditions for predictable system behavior.

Measuring 230x127x40.5mm, the RSP-500 is the first RSP model in a full 1U chassis (vs 30mm slim on smaller RSPs). The DC fan operates on a temperature-controlled schedule: always on for 3.3~5V models, and on/off at 50C/40C thresholds for 12~48V. Remote ON/OFF via RC+/RC- dry contact or TTL (0~0.8V=ON, 4~10V=OFF) and remote sense (+S/-S) for compensating up to 0.3V of load wiring voltage drop.

UL62368-1, TUV, CCC, BSMI, EAC, AS/NZS 62368.1, BIS IS13252 certified on all models. Class B EMC. 3-year warranty. Note: Leakage current is <2.0mA (higher than RSP-200/320's <1.0mA) and OVP requires restart to recover. The hold-up time is 18ms/230V (vs 8ms on RSP-200/320) - a 2.25x improvement critical for brownout-prone applications.

Product Images

Technical Specifications

Low-Voltage Models (3.3V ~ 5V)

Parameter	3.3V	4V	5V
DC Output Voltage	3.3V	4V	5V
Rated Current	90A	90A	90A
Rated Power	297W	360W	450W
Ripple & Noise	120mV	120mV	150mV
Voltage Adj Range	2.8~3.6	3.6~4.3	4.5~5.5
Voltage Accuracy	+/-2.0%	+/-2.0%	+/-2.0%
Line / Load Reg	0.5/1.0%	0.5/1.0%	0.5/1.0%
Efficiency (Typ.)	81%	83%	84%

Standard Voltage Models (12V ~ 48V)

Parameter	12V	15V	24V	27V	48V
DC Output Voltage	12V	15V	24V	27V	48V
Rated Current	41.7A	33.4A	21A	18.6A	10.5A
Rated Power	500.4W	501W	504W	502.2W	504W
Ripple & Noise	150mV	150mV	150mV	150mV	150mV
Voltage Adj Range	10~13.2	13.5~18	20~26.4	26~30	41~56V
Line Reg / Load Reg	0.3/0.5%	0.3/0.5%	0.2/0.5%	0.2/0.5%	0.2/0.5%
Efficiency (Typ.)	88%	88%	89%	89.5%	90.5%

Input, Protection & Features (All Models)

Input Voltage	85~264VAC universal; 120~370VDC. PF>0.98/115V, PF>0.95/230V. 47~63Hz. Widest input in RSP series
AC Current / Inrush	5.3A/115V, 2.65A/230V (12~48V); 4.2A/115V, 2.1A/230V (3.3~5V); Inrush 20A/115V, 40A/230V
Leakage / Hold-up	<2.0mA / 240VAC; Hold-up 18ms/230V, 14ms/115V - 2.25x better than RSP-200/320
Overload Protection	105~130% rated power; Constant current limiting, auto-recovery (not hiccup mode)
Overvoltage Protection	3.3V:3.8~4.5 / 4V:4.5~5.3 / 5V:5.75~6.75 / 12V:13.8~16.2 / 15V:18.8~21.8 / 24V:27.6~32.4 / 27V:32.9~38.3 / 48V:58.4~68V. Output shutdown, restart to recover
OTP / Remote Control	OTP: shutdown, auto-recovery; Remote ON/OFF via RC+/RC-: 0~0.8V=ON, 4~10V=OFF
Remote Sense	+S/-S compensated up to 0.3V load wire voltage drop. Use twisted pair for sense lines
Fan Control	3.3~5V: fan always on; 12~48V: fan on at 50C, off at 40C (RTH2 threshold)

Environmental, Safety & EMC

Operating Temp	-30~+70C (fan cooled; derating applies). Temperature coefficient +/-0.03%/C (0~50C); Humidity 20~90% RH
Vibration	10~500Hz, 2G, 10 min/cycle, 60 min each X/Y/Z axes
Safety Standards	UL62368-1, TUV BS EN/EN62368-1, AS/NZS 62368.1, EAC TP TC 004, CCC GB4943.1, BSMI CNS15598-1; BIS IS13252/IEC 60950-1 on ALL models
Withstand / Insulation	I/P-O/P: 3KVAC \| I/P-FG: 2KVAC \| O/P-FG: 0.5KVAC; Insulation: >100Mohm/500VDC/25C/70% RH
EMC	EN55032 Class B, EN61000-3-2/-3, EAC TP TC 020, GB/T 9254, CNS15936 Class B; Immunity: EN61000-4-2,3,4,5,6,8,11, EN55035, EN61000-6-2
MTBF / Dimensions	1,372.4K hrs (Telcordia); 230x127x40.5mm; 1.3kg / 9pcs / 12.7kg / 0.7CUFT

Key Features

500W in 1U Chassis
230x127x40.5mm delivers full 500W. DC fan with temperature-controlled on/off for 12~48V models.

Remote ON/OFF Control
RC+/RC- dry contact: 0~0.8V=ON, 4~10V=OFF. Integrates directly with PLC and system controllers.

Remote Sense Compensation
+S/-S compensates up to 0.3V load wire drop. Ensures accurate voltage at the load, not at the terminals.

18ms Hold-up Time
2.25x the RSP-200/320's 8ms. Critical for brownout-prone environments and protection relay timing.

Active PFC + Class B EMC
PF>0.98, EN61000-3-2 compliant. EU residential legal without restrictions.

BIS on ALL Models
First RSP series with full BIS coverage - no exclusions. Ship to India with any voltage.

90A Low-Voltage Current
3.3V/4V/5V deliver 90A - 50% more current than RSP-320. For high-density TTL, LED, and digital loads.

Constant Current Limiting
Unlike hiccup mode on RSP-200/320, CC limiting maintains current flow during overloads - preferred for some loads.

85~264VAC Wide Input
Widest input range in RSP series - starts from 85VAC for unstable grid regions.

3-Year Warranty
Full global certifications (UL/TUV/CCC/BSMI/EAC/BIS/AS-NZS). 70KHz PFC+PWM.

Frequently Asked Questions

How does the RSP-500 differ from the RSP-320?

The RSP-500 delivers 500W vs 320W (+56%) in a larger 1U chassis (40.5mm vs 30mm). Key differences: (1) 230x127x40.5mm (vs 215x115x30mm); (2) Remote ON/OFF + remote sense (not on RSP-320); (3) 18ms hold-up (vs 8ms - 2.25x better); (4) constant current limiting overload (vs hiccup); (5) 85~264VAC input (vs 88~264V); (6) BIS on all 8 models (vs exclusions on RSP-320); (7) 90A low-voltage current (vs 60A); (8) <2.0mA leakage (vs <1.0mA); (9) 70KHz switching (vs 100KHz); (10) no 2.5V, 7.5V, or 13.5V models.

How do I use the remote ON/OFF function?

Connect to CN100 pins 3 (RC-) and 4 (RC+). The power supply turns ON when the RC+/RC- circuit is shorted (0~0.8V) or left open. Apply 4~10V between RC+ and RC- to turn OFF. This can be controlled by a dry contact relay, PLC digital output, or open-collector transistor.

When should I use remote sense?

Remote sense compensates for voltage drop in output wiring. Connect +S (pin 2) to the load's positive terminal and -S (pin 1) to the load's negative terminal using a twisted pair. The power supply will automatically increase its output voltage to maintain the set voltage at the load, up to 0.3V compensation. Use when load wires are long (>1m) or carry high current.

Why is the fan always on for 3.3~5V models?

The low-voltage models (3.3V/4V/5V) operate at 90A with lower efficiency (81~84%), generating more heat per watt. The fan runs continuously to manage this thermal load. For 12~48V models, the higher efficiency (88~90.5%) allows temperature-controlled fan operation - fan on at 50C, off at 40C - reducing noise and extending fan life under light loads.

Is the RSP-500 suitable for battery charging?

The RSP-500 uses constant current limiting overload protection (not hiccup), which is preferred for battery charging applications. The 48V model with 41~56V adjustment range can cover 48V battery float and equalization charging, and the remote sense function ensures accurate terminal voltage. Note that the power supply does not include a dedicated battery charging profile - it provides a stable DC output suitable for float charging with external charge controllers if needed.

Related Products

Select the RSP-500 model. All 8 feature active PFC, Class B EMC, remote ON/OFF, remote sense, and BIS certification.

Available Models

RSP-500-3.3 - 3.3V/90A/297W
RSP-500-4 - 4V/90A/360W
RSP-500-5 - 5V/90A/450W
RSP-500-12 - 12V/41.7A/500.4W
RSP-500-15 - 15V/33.4A/501W
RSP-500-24 - 24V/21A/504W
RSP-500-27 - 27V/18.6A/502.2W
RSP-500-48 - 48V/10.5A/504W

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