Clary Corporation CT1250R True Online Double-Conversion UPS – 1250VA/875W Rackmount Uninterruptible Power Supply, 120/220VAC Switchable Input, 50/60Hz Frequency Converter

The Clary Corporation CT1250R is a robust, true online double-conversion Uninterruptible Power Supply (UPS) from the CT Series, engineered for extreme environments and mission-critical operations such as traffic control, military systems, industrial automation, and security infrastructure. Delivering 1250VA/875W of reliable power, this 3U rackmount unit safeguards sensitive equipment against power anomalies, brownouts, surges, and outages with seamless battery backup and advanced conditioning capabilities.

Key features include switchable universal input (120/220VAC +10%/-20%, 45-65Hz auto-sensing) and pure sinewave output (120VAC ±3%, software-selectable 50/60Hz ±1Hz synchronization or crystal-controlled standalone mode), making it an ideal frequency converter and electronic power conditioner. Optional power factor correction (PFC) ensures efficient operation across global voltages (100-240VAC), while extended brownout protection maintains continuous runtime on utility power from -25% to +12% without battery drain.

Equipped with a standard internal battery providing 7 minutes at full load or 21 minutes at 50% load (expandable via external battery modules for up to 4 strings), the CT1250R recharges to 80% in just 5 hours. It supports non-linear loads with low-distortion output, automatic transfer bypass for maintenance, and comprehensive monitoring via RS-232, open-collector interfaces, or optional SNMP/HTTP for remote management.

Built for harsh conditions, it operates from 0°C to +40°C (up to +50°C with high-temp option) at 0-95% humidity, with optional air filtration for dusty or outdoor deployments. Compact and lightweight (42-79 lbs depending on configuration), the CT1250R combines durability, scalability, and zero-transfer-time protection to ensure uninterrupted performance in demanding rackmount setups.

• Clary CT1250R UPS
• 1250VA rackmount UPS
• Online double-conversion UPS
• 120/220VAC uninterruptible power supply
• 50/60Hz frequency converter UPS
• Power factor corrected UPS
• Mission-critical UPS for military and traffic
• True online UPS 875W
• Rackmount battery backup system
• Industrial power conditioner UPS
• Extended runtime UPS with external batteries
• Harsh environment UPS 0-50°C