MEAN WELL LSP, ERP & ERPF Power Supplies
Product Features
These three series are developed for specialized form factors and environmental demands, catering to slim electronics and outdoor advertising signage.
- LSP Series (Ultra-Slim): Features a remarkably low profile of just 20mm. It is fanless, conduction-cooled, and includes high 5G vibration resistance. Select low-voltage models feature built-in current sharing (redundancy) for scaling power.
- ERP Series (Rainproof): A highly cost-effective, constant voltage power supply featuring an aluminum case and semi-potted design. It is engineered to withstand rain splashes, solving issues related to outdoor exposure and casing embrittlement.
- ERPF Series (Rainproof + PFC): Builds upon the rugged ERP design by integrating an Active Power Factor Correction (PFC) function and a universal AC input range, ensuring compliance with strict global energy regulations.
- Comprehensive Protections: All models feature built-in safeguards against Short circuit, Overload, Over voltage, and Over temperature.
Technical Specifications
| Parameter | LSP Series | ERP Series | ERPF Series |
|---|---|---|---|
| Input Voltage | 100 ~ 264VAC | 180 ~ 264VAC | 90 ~ 264VAC (Universal) |
| PFC Function | Active PFC (>0.94) | Non-PFC | Active PFC (>0.90) |
| Cooling Method | Fanless / Convection | Convection / Built-in Fan | Fanless / Convection |
| Environmental | Indoor, 5G Vibration | Semi-outdoor, Splash-proof | Semi-outdoor, Splash-proof |
| Operating Temp. | -30°C to +70°C | -30°C to +60°C | -30°C to +60°C |
Series Range Overview
| Model Series | Power Range | Output Voltages | Key Characteristic |
|---|---|---|---|
| LSP-160 | 160W ~ 200W | 3.3V, 4.2V, 5V, 12V, 24V, 36V, 48V | 20mm height; Redundant function on 3.3V/4.2V/5V models. |
| ERP-200 / 350 | 200W, 350W | 12V, 24V, 36V, 48V | 230VAC input only; Semi-potted for rain protection. |
| ERPF-400 | 400W | 12V, 24V, 48V | Universal AC input; Active PFC; Rain splash-proof. |
Application Selection Guide
Choose the correct series based on the physical constraints and environmental exposure of your project:
| Application Scenario | Recommended Series | Reasoning |
|---|---|---|
| Indoor LED Display Panels | LSP Series | The 20mm ultra-slim profile fits effortlessly into narrow display cabinets, while the fanless design ensures quiet operation. |
| Outdoor Channel Letters (230V Grid) | ERP Series | The semi-potted aluminum casing protects against rain infiltration in advertising light boxes where highly cost-effective 230VAC power is required. |
| Global Outdoor Signage | ERPF Series | Provides the same rain resistance as the ERP series, but accommodates universal 110/220VAC inputs and meets strict PFC efficiency standards. |
Installation Note for ERP/ERPF: While these units are designed to withstand rain splash, they are not IP67 rated for complete submersion. Ensure they are mounted in a vertical position with the wiring terminals facing downwards to prevent water pooling.
