Description
The Helios NSR750U48 is a compact, high-efficiency 750W DC UPS and battery charger for 48Vdc systems. Engineered for mission-critical applications that require uninterrupted DC power and advanced battery management. The NSR750U ensures seamless no-break power transfer between mains and battery during outages—making it an ideal choice for SCADA systems, telecommunications, industrial control panels, security systems, and power utility substations.
This next-generation industrial DC UPS combines the reliability of Helios’ proven SR-series with advanced monitoring, protection, and configurability. It features programmable temperature-compensated charging, deep discharge protection, low-voltage disconnect (LVD), and electronic circuit breaker (ECB) protection—all of which ensure longer battery life and greater system uptime.
Built for demanding environments, the NSR750U includes rugged construction, dual-fan thermal management, and an IP20-rated chassis. The unit operates efficiently in temperatures from -10°C to 50°C and supports a wide input voltage range (90–264VAC), delivering up to 90% conversion efficiency.
For monitoring and remote control, all NSR750U models include RS-485 with Modbus RTU, while Ethernet-enabled variants support SNMP, web-based configuration, and data logging. Alarms and system health diagnostics can be accessed locally via LEDs or remotely via network protocols—supporting proactive maintenance and system integration with SCADA, PLC, and telemetry systems.
Available with M8 stud or Phoenix-style output terminals, and with optional Ethernet/SNMP, the NSR750U can be tailored to a wide range of DC power backup applications. Its versatile feature set makes it one of the most reliable and configurable DC UPS systems in the market today.
The NSR750 series are engineered and built in Australia.
