New Generation 120W High Input Voltage AC/DC Power Supply for Coal Mining - PVA120-27BxxR2

September 29, 2024

MORNSUN provides the PVA series power converter for electrical equipment in the coal mining industry, and now launches a new generation of 120W high voltage power supply PVA120-27BxxR2 with a smaller size, better performance, and lower cost. These products, using our independent IC, feature a wide input voltage of 85-900VAC or 120-1300VDC( AC or DC power supply), a wide temperature range of -25℃ to +70℃, fast start-up, and multiple protections. Their volume is reduced by 49% compared to R1, EMS meets CLASS A, and inrush current is reduced to 310A. Furthermore, they are double-sided conformal coating and have a 3-year warranty, which can be widely used in coal mine monitoring, security, and other applications.

Advantages

Comparison of R1 and R2

Excellent performance

① Ultra-wide and ultra-high input voltage of 85-900VAC/120-1300VDC , which covers 127/220/380/660VAC used in coal mining industry

② Wide operating temperature range of -25℃ ~ +70℃, suitable for mining/security environment;

③ Optional output voltage of 24/28/35V

Safe and reliable

① High I/O isolation voltage up to 4000VAC

② Multiple protections: output short circuit, over-current, over-voltage protection

③ Packages: open-frame, PCB double-sided conformal coating

④ EMS: Surge IEC/EN61000-4-5 Line to line ±2KV Perf. Criteria A; EFT IEC/EN61000-4-4 ±4KV Perf. Criteria A

⑤ With its own additional circuits (fuse/voltage regulator/current limiting resistor) to protect the optocoupler and comply with the requirements of intrinsically safe certifications.

Applications

PVA120-27BxxR2 series is a special power supply designed for customers who provide electrical equipment for the coal mining industry, which covers 127/220/380/660VAC input voltage. They feature high isolation voltage, excellent EMS performance, and multiple protections, which makes them suitable to use in monitoring and security sectors of the coal mining industry to provide stable and safe power. For an extremely harsh EMC environment, we recommend using the application circuit shown in the Design Reference of this datasheet.

PVA120-27BxxR2 series is a special power supply designed for the coal mining industry's electrical equipment.jpg