PX Electronics BLS dual redundant AC power supplies provide continuous AC output for critical systems using automatic selection between DC input and AC bypass supply. Designed for telecoms, SCADA, utilities, transport networks, and control room environments, the system helps maintain power to essential AC loads, minimising interruptions.
With pure sine-wave output, rack-mount construction, fast bypass transfer, remote-monitoring interfaces, and dry-contact alarms, the PXe-BLS Series is suited for unattended infrastructure, communication sites, and industrial control systems that require dependable backup AC power.
Technical Highlights for Critical AC Power Applications:
Dual input supply architecture
Automatically selects between DC input and AC bypass supply to maintain AC output to connected critical loads.
Pure sine wave output
Provides clean AC output with low harmonic distortion, suitable for sensitive communication, control and monitoring equipment.
Fast automatic transfer
Switches between supply modes in up to 5 ms, helping reduce disruption during AC input failure or DC supply fault conditions.
Rack-mount installation
Standard 19-inch rack-mount enclosure for telecoms rooms, control cabinets, substations and data infrastructure sites.
Remote monitoring and alarms
Supports RS232, RS485, Modbus RTU and TCP/IP communication options, with volt-free contacts for input fault and system status indication.
Built-in protection functions
Includes overload, short circuit, over-temperature, DC input voltage and AC input voltage protection for critical power applications.
Maintenance bypass
Allows service access and system maintenance while supporting continuity of supply to the connected load.
