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Mean Well HRP-450-3.3 Power Supply 297W 3.3V

built-in active PFC, high efficiency up to 90%, no load power consumption

SKU:

HRP-450-3.3

Model

75W 3.3V

$43.11 USD

SKU: HRP-75-3.3

100W 3.3V

$49.72 USD

SKU: HRP-100-3.3

150W 3.3V

$60.26 USD

SKU: HRP-150-3.3

200W 3.3V

$78.04 USD

SKU: HRP-200-3.3

300W 3.3V

$93.83 USD

SKU: HRP-300-3.3

450W 3.3V

$150.04 USD

SKU: HRP-450-3.3

600W 3.3V

$156.44 USD

SKU: HRP-600-3.3

Product variants

$150.04 USD

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Description

Features

Universal AC input / Full range

Withstand 300VAC surge input for 5 seconds

Built-in active PFC function

Protections: Short circuit / Overload / Over voltage / Over temperature

Built-in constant current limiting circuit

Built-in remote sense function

Forced air cooling by built-in DC fan

Built-in DC OK signal

1U low profile

100% full load burn-in test

5 years warranty

General Specification

AC input voltage range	85~264VAC; 120~370VDC
AC inrush current (max.)	Cold start, 70A at 230VAC
DC adjustment range	±15% rated output voltage
Overload protection Range	105%~135%
Overload protection Type	Constant current limiting, auto-recovery
Over voltage protection	115%~145%
Withstand voltage	I/P - O/P: 3kVAC, I/P - FG: 1.5kVAC, O/P - FG: 0.5kVAC, 1 minute
Working temperature	-40~+70°C (refer to output derating curve)
Safety standards	UL60950-1, TUV EN60950-1 approved
EMC standards	EN55022 class B, EN61000-4-2,3,4,5,6,8,11, EN61000-3-2,3, EN61000-6-2 heavy industry level
Connection	3+6P/10&11mm pitch terminal block with cover
Dimension (LxWxH)	218x105x41
Case No.	995A

Specifications

Brand

Mean Well
Series

HRP Series
Power Rating

297 Watt
Output Voltage

3.3 Volt
Rated Current

90 Ampere
Input Voltage

85V~264V
No of Output

1
Standards Met

CB,CE,EAC,TUV,UL
Operation Mode

Constant Voltage
Operating Temperature

-40°C~70°C
Warranty

5 Year
Length

8.58 in
Width

4.13 in
Height

1.61 in
Weight

2.62 lb

File Downloads

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Frequently Asked Questions

Can I use the HRP-450-3.3 for high-current 3.3V embedded processing boards?

Yes, this unit is a constant-voltage 3.3V supply rated for up to 90A and 297W, which suits 3.3V electronics that need very high current. It accepts 85-264VAC input, so it can be used in mains-powered lab or industrial systems.

Is the HRP-450-3.3 suitable for FPGA, logic, or communication backplane loads?

It can be appropriate for 3.3V digital loads when the system requires a fixed 3.3V rail and the total demand stays within 90A and 297W. The constant-voltage output is intended for equipment designed around a regulated 3.3V input.

Can this power supply support a 3.3V electronics burn-in or validation rack?

Yes, provided the rack needs a constant 3.3V source and its combined draw does not exceed 297W or 90A. The enclosure size is 218.0 x 105.0 x 41.0 mm, which can help in dense bench or cabinet layouts.

How does the HRP-450-3.3 compare with other 3.3V HRP models?

The listed 3.3V siblings are HRP-75-3.3 at 49.5W and 15A, HRP-100-3.3 at 66W and 20A, HRP-150-3.3 at 99W and 30A, HRP-200-3.3 at 132W and 40A, HRP-300-3.3 at 198W and 60A, and HRP-600-3.3 at 396W and 120A. The HRP-450-3.3 sits between the 198W and 396W versions with 297W output and 90A current.

Can the HRP-450-3.3 be used in harsh environments with low or high ambient temperatures?

Its stated operating temperature range is -40°C to +70°C, which supports use across a wide thermal range. The provided specifications do not include an IP rating, so the data does not confirm outdoor, wet-location, or dust-exposed suitability.

Model	Power	Voltage	Current	IP Rating	Price
Mean Well HRP-450-7.5 Power Supply 450W 7.5V	450W	7.5V	60A	Indoor	$150.04	View
Mean Well HRP-450-5 Power Supply 450W 5V	450W	5V	90A	Indoor	$150.04	View
Mean Well HRP-450-48 Power Supply 456W 48V	456W	48V	9.5A	Indoor	$150.05	View
Mean Well HRP-450-36 Power Supply 450W 36V	450W	36V	12.5A	Indoor	$142.31	View
Mean Well HRP-450-24 Power Supply 451.2W 24V	451.2W	24V	18.8A	Indoor	$142.51	View
Mean Well HRP-450-15 Power Supply 450W 15V	450W	15V	30A	Indoor	$142.54	View
Mean Well HRP-450-12 Power Supply 450W 12V	450W	12V	37.5A	Indoor	$151.25	View