The PS48120-2/1800 -Y4 Y5  is a one-cabinet  DC power system integrated with AC and DC distribution units, providing up to 120A for -48VDC.

The PS48120-2/1800 power system comprised of AC distribution units, DC distribution units, rectifiers (R48-1800A, R48-2000e : 58V/30A), supervision unit (M500S) and cabinet. The system can provide maximum 120A output current and very suitable for radio base stations, small telecom exchanges, fiber repeaters and satellite communication stations applications.

Features

• The rectifier uses the active Power Factor Compensation (PFC) technology, raising the power factor to 0.99
• Wide AC input voltage range. 85V ~ 300V for manual switching system
• The rectifier uses soft switching technology, raising the efficiency to 91%
• High power density
• Rectifiers are hot pluggable. It takes less than 1min to replace a rectifier
• Two over-voltage protection methods are optional: hardware protection and software protection. The latter one also has two optional modes: lock-out at the first over-voltage and lock-out at the second over-voltage
• Perfect battery management: The management functions include the load low voltage disconnection (LLVD) (optional), battery low voltage disconnection (BLVD), temperature compensation, auto voltage regulation, stepless current limiting, battery capacity calculation, and on-line battery test
• Up to 200 pieces of historical alarm records, and 10 sets of battery test data records
• Network design: Providing multiple communication ports (such as RS232, modem and dry contacts), which enables flexible networking and remote monitoring
• Perfect lightning protection at both AC side and DC side
• Complete fault protection and fault alarm functions

System Features

• Embedded batteries, space saving
• Full front access for easy installation and maintenance
• Wide input voltage range of 80 to 300 Vac
• Rectifier with wide working temperature range: -40°C~70°C
• DSP control technologies effectively increases rectifier power density
• Smart battery management effectively protects the battery
• Perfect lightning and surge protection at AC side, DC side and signal interfaces
• Hot-swappable of rectifier and controller modules, realizing quick and easy online maintenance
• Optional DC/DC converter modules, providing 6V, 12V and 24V DC output

System Model

• PS48120/1800-Y4: Two-way AC manual switch, no user AC output
• PS48120/1800-Y5: Two-way AC automatic switch, with user AC output

Applications

• 3G, GSM, CDMA mobile base stations
• Small and medium exchanges, rural
• telephone and access networks
• Transmission relay stations
• Communication equipment rooms
• and wireless base stations of railway
• intermediate stations

Benefits

• Ultra-low radiation. With advanced EMC design, the rectifier meets international standards such as CE and NEBS. Both the conducted and radiated interference reach Class B
• The rectifier safety design complies with UL, CE and NEBS standards