Name: MEAN WELL MP series: PFC front-end modular power system - PFC-450
Brand: MEAN WELL
SKU: PFC-450
Price: 659.94 USD
Availability: InStock

MEAN WELL MP series: PFC front-end modular power system - PFC-450

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Description

PFC-450 — PFC front-end modular power system

PFC-450 is the MEAN WELL MP modular-system PFC front end for a maximum combined output of 450 W. Its universal AC input and active PFC feed separately selected output modules. The assembled output voltages, currents and number of outputs depend on the installed modules, their slot requirements and the shared system power budget.

Download MEAN WELL MP Datasheet (PDF)
Download MEAN WELL MP User Manual (PDF)
Download MEAN WELL EMI Testing Guidance (PDF)

MP system and output-module specifications, dimensions, connections and derating curves: main datasheet PDF pages 1–7. The dedicated installation manual provides assembly and operating instructions.

Model and electrical specifications

Model and configuration	PFC-450; MEAN WELL MP series. PFC front-end system; output modules are selected to form the required assembled outputs. Main catalog revision: 2024-09-04.
System output capacity	450 W maximum combined output across installed modules; 5 slots. Module voltage, current, individual power and slot requirements remain separate constraints.
Universal input	85–264 V AC or 120–370 V DC; input frequency 47–63 Hz. This frequency is the mains input range, not a DC-output frequency.
Active power factor correction	Built-in active PFC; PF >0.95 at 230 V AC and >0.98 at 115 V AC, at full load. The series feature page names EN61000-3-2.
Typical system efficiency	82.5% typical; efficiency changes with the installed output-module combination.
Efficiency and hold-up test configuration	MP450 reference configuration: 5 V code C ×1, 12 V code E ×1, 24 V code H ×1 and 5 V code M ×1. The catalog gives 20 ms typical hold-up for this combination; different module mixes can change efficiency and hold-up performance.
AC input current	6.3 A at 115 V AC; 3.2 A at 230 V AC.
Inrush current	25 A at 115 V AC; 40 A at 230 V AC.
Leakage current	<1.5 mA at 240 V AC.
MP platform feature scope	The MP platform supports configurable output combinations. Its PFC front end provides active PFC compliant with EN61000-3-2 and a 12 V / 0.1 A auxiliary supply only for remote ON/OFF control. MS single-output modules provide constant-current limiting and remote sense; individual output modules provide remote inhibit. Parallel operation is available for MS-210, MS-300 and MS-360; margin control is available only for MS-210 and MS-360. These are family-specific system capabilities, not functions attributed to every installed module.

Control and protection

System remote ON/OFF	CN4 +RC/−RC: 0–0.8 V or short = system ON; 4–12 V or open = system OFF. CN4 controls the entire power system. Individual output modules have different open-circuit behavior.
Auxiliary supply	12 V at 0.1 A, only for remote ON/OFF control; CN4 pin 3 VCC. It is not an extra rated load output.
Cooling and thermal protection	Cooling uses a built-in DC fan with fan alarm. Overtemperature shuts down the output and recovers automatically after temperature falls. A fan malfunction shuts down all outputs.
Output-module protection scope	Short-circuit, overload and overvoltage protection are series features. Exact thresholds and responses belong to the selected MS or MD output modules; the MD overload shutdown response differs from MS constant-current limiting.

Operating environment and system derating

System operating environment	MP assembled-system working temperature: −20°C to +70°C with derating; humidity 20–90% RH, non-condensing. Storage: −40°C to +85°C, 10–95% RH, non-condensing.
Ambient-temperature power curve	For horizontal installation, the curve permits 100% rated power from −20°C through +50°C, decreasing to 50% at +70°C. Apply the input-voltage derating simultaneously.
Input-voltage power curve	At 60 Hz: 85% rated power at 85 V AC; 90% at 90 V AC; 100% from 100 to 264 V AC. Follow the intermediate curve and the temperature limit together.
High-altitude derating	For MP fan-cooled systems operating above 2000 m, reduce the allowable ambient temperature by an additional 5°C per 1000 m. Note 7 separately gives 3.5°C per 1000 m for fanless models; that fanless condition does not replace the MP fan-system requirement.
Temperature coefficient and vibration	System temperature coefficient ±0.03%/°C over 0°C to +50°C. Vibration: 10–500 Hz, 2 G, 10 minutes per cycle; 60 minutes each along X, Y and Z axes.

Safety, EMC and reliability

System safety standards	UL62368-1, TÜV BS EN/EN62368-1 and EAC TP TC 004 approved, as listed for the assembled system. Verify the selected complete configuration and its marking.
Withstand voltage	Input–output: 3 kV AC; input–FG: 2 kV AC; output–FG: 0.5 kV AC.
Isolation resistance	Input–output, input–FG and output–FG: 100 MΩ at 500 V DC, 25°C and 70% RH.
EMC emission	BS EN/EN55032 (CISPR32) Class B; BS EN/EN61000-3-2 and -3; EAC TP TC 020. These are component-system references subject to final-equipment verification.
EMC immunity	BS EN/EN61000-4-2, -3, -4, -5, -6, -8 and -11; BS EN/EN55035; BS EN/EN61000-6-1, light-industry level, criteria A; EAC TP TC 020.
Reliability	MTBF: 2257.3 K hours minimum, Telcordia SR-332 (Bellcore); 225.9 K hours minimum, MIL-HDBK-217F at 25°C, for the 450 W system.

Mechanical dimensions and connections

Dimensions and case	254 × 127 × 63.5 mm (L × W × H); case 939A. Mechanical drawing units mm, tolerance ±0.5 mm. Separate end projections are 12 mm maximum and 16 mm maximum as shown.
Chassis mounting	Eight M4 side positions in total across both sides and four M4 bottom positions. Longitudinal spacing 147.5 mm, rear offset 19 mm; side vertical spacing 38 mm and upper reference 12.5 mm. Bottom mounting transverse spacing 101.5 mm and edge reference 12.25 mm. Follow the drawing endpoints and fan airflow direction.
AC input terminal block	TB1: pin 1 AC/L; pin 2 AC/N; pin 3 FG (protective earth). M3.5 screws; maximum mounting torque 18 kgf·cm. Front-view terminal references: 10 mm pitch and 8.2 mm local terminal dimension.
CN4 remote and auxiliary connector	JST B3B-XH or equivalent: pin 1 +RC; pin 2 −RC; pin 3 VCC, 12 V / 0.1 A auxiliary output. Mating housing JST XHP; contact JST SXH-001T-P0.6, or equivalent. Use the diagram orientation to identify pin 1.
Supported module slots	MS-75, MS-150 and MS-210 single-output modules each use one slot; MS-300 and MS-360 each use two slots; MD-100 isolated dual-output modules use one slot. Keep paired or paralleled modules in adjacent slots and respect the system power budget.
Parallel configuration coding	MP450 / MP650 allow codes X, 1, 2, 7, 8 and 9. Table 1 applies only to MS-210, MS-300 and MS-360; use its exact slot-group diagram. Maximum parallel count is five MS-210 units or three MS-300/MS-360 units; slot availability and total power still limit the configuration.
Packing reference	1.8 kg typical per system; 6 units / 11.8 kg / 1.25 CUFT per carton. This is the catalog system PACKING reference; it does not give a weight for an individual output module.
Manufacturer warranty	The MP series feature page states a 3-year manufacturer warranty.

Installation and system verification

Authorized assembly and power budgeting	MP module assembly is restricted to factories certified by a safety agency and authorized by MEAN WELL in advance. Check the configured unit’s safety label. Keep the combined power actually used by all installed modules below the PFC front-end rating and within every selected module’s limits; available slots alone do not establish an allowable load.
Ventilation and mechanical support	Keep cooling-fan vents unobstructed, with the manual’s recommended 10 cm clearance around the vents. Support the power supply with a suitable rack and use the mounting-hole arrangement shown; do not leave it cantilevered without adequate support. M4 mounting screws must penetrate the case by less than 6 mm; the drawing marks L = 6 mm maximum. This is insertion depth, not the overall screw length.
Input switching and restart	Select any external input switch for a current rating greater than the system’s maximum inrush current. The manual recommends at least 10 seconds between power-off and restart so that the thermistor can cool; a warm restart can produce greater inrush. Apply input-voltage and ambient-temperature derating together.
Protection and servicing	Follow the selected output module’s specifications for its exact protection thresholds and recovery modes. After overvoltage shutdown, remove the cause and allow 10 seconds with AC off before restarting. For overheating, the manual instructs the user to disconnect AC, remove the cause and cool the unit for approximately 10 minutes to 1 hour before restart; this service procedure is separate from automatic thermal-protection recovery. Fan lock, a broken fan wire or a loose connector shuts down all module outputs: disconnect AC and contact MEAN WELL or its distributor for repair.
Complete-system EMC verification	Install the component power supply in the intended final equipment and verify the complete system with representative loads, wiring and assembly. The datasheet’s EMC tests use a 720 × 360 mm metal plate, 1 mm thick; changes to the installation can affect results. The linked laboratory guidance does not grant finished-equipment certification or prescribe its example 40/80 cm laboratory geometry as product mounting clearances.