DUMB-48/50H Wall-Mounted 48V Rectifier System for Telecom power supply

Intelligent fan-cooling technique enables good cooling performance, low failure rate and high reliability Product Description

Introduction DUMB-48/50H wall-mounted power system is compact and intelligent power system containing up to 6 nos. DZY (50H) series rectifiers, controller, LVD, AC&DC distribution units, with special protection measures ensure the system operating in weak power grid environment well, to satisfy limited room applications. Applications Fiber optic network Access network Transmission equipment Mobile communication Satellite communication ground station 2G, 3G base station Main Features System total capacity up to 16.2KW output. Suitable for outdoor application with various protection measures. Wide AC input range 90V to 300V. PFC technique features high efficiency, energy-saving and up to 0.99 power factor. Intelligent fan-cooling technique enables good cooling performance, low failure rate and high reliability. Fast on-line expansion of rectifier modules enabled by hot-swap. N+1 rectifier module redundancy. Batteries monitoring and management enables backup batteries well maintained. RS232 communication interface.

Technical Specifications
AC Input Voltage	1 phase three wire 90 ~ 300VAC;
Frequency	45 ~ 55Hz;
Power Factor	≥ 0.99
Efficiency	≥ 92% rated,
DC Output Voltage	-48V(nominal);
OutputVoltage Range	-42V ~ -58V;
Output Current	300Aultimate capacity
Peak-peak noise	≤ 200mV;
Psophometric noise	≤ 2.0mV
Audible noise	≤ 55dBDC
Rectifier	DZY-48/50H
Controller Model:	DKD31; LCD display panel4 buttons
Alarms Relays	8 relays
Operating temp.	-5 to +55° C
Storage temp.	-40 to +70° C
Relative humidity	< 90%, no condensing
Atmospheric pressure	70KPa~106KPa

DUMB-48/50H Wall-Mounted 48V Rectifier System for Telecom power supply