Our modular UPS supports 30 power modules working in parallel mode, and parallel expansion up to 8 cabinets.

You can setting the UPS to work on self-aging mode. Self-aging function can test UPS under different load situation without real load, saving more than 90% of energy. Simulate different load conditions without connecting to any real load, saving 90% of energy. On site setting supported, easy for factory testing.

Yes, programmable dry contacts are available in all modular UPS. Customers can easily expand or modify the definition of each port. 
a. Abundant options with three inputs and four outputs, all programmable.
b. Easy setting, just pull the drop-down menu and set.
c. Compatible with all the RM and HT33.

Capacity selection factors:

1. Total equipment load: Sum up the Max. Power (W) from the rating labels of all connected devices.
2. Expansion: Account for potential additional equipment over the UPS lifespan (approx. 5 years).
3. Real Power (W): Consider the Power Factor (PF) difference between VA and W (e.g., Off-line is ~0.6, On-line is 0.8~1.0).
4. Optimal efficiency: It is recommended to choose a UPS where the initial load is under 50% for maximum energy efficiency, longer backup time, and better battery lifespan.

Typical lead-acid batteries last 2~3 years. It's recommended to test them quarterly and replace them if backup time drops below 70%. High temperatures (>35°C) reduce lifespan. Lithium-ion UPS models last 5~8 years. For Off-line/Line-interactive UPS with hot-swappable designs, users can replace them following the manual. For On-line UPS (>3KVA), self-replacement is not advised; please contact an authorized dealer.

A UPS primarily protects loads, providing continuous power during outages to allow safe data storage and shutdown; secondary functions include voltage regulation, noise filtering, and surge protection. An SPS converts AC power from the wall into stable DC power for internal components (like motherboards), focusing on energy conversion efficiency and circuit protection.

If you notice pungent odors, physical swelling, or crystalline residue (electrolyte leakage), put on corrosion-resistant gloves, immediately disconnect the UPS input/output power, ensure good ventilation, and contact an authorized service center.

Paralleling UPS units is done for capacity expansion or N+1 Redundancy. Ensure all units are the exact same brand, model, and capacity, operating under the same power specs. They must use the same communication interface and firmware. Installation should be performed by authorized engineers, and the load must be evenly distributed.

1. Fan noise: Online UPS models use fans for cooling, which run louder under high loads.
2. Alarms: "Beep" sounds indicate battery mode, overload, or a fault condition.
3. High-frequency buzzing: Caused by transformer vibrations or inverter operation. If constant high-frequency coil whine occurs, contact your dealer for inspection.

Most Off-line/Line-interactive UPS models produce little heat in bypass mode. However, On-line UPS units have cooling fans (usually front-to-back airflow) and require at least 30 cm of clearance at the front and back for proper ventilation.

A UPS is used to prevent data loss, service interruptions, and hardware damage from power anomalies. Common equipment includes: Desktop PCs, Servers, NAS, Routers, Switches, Surveillance Systems, POS machines, IPCs, and semiconductor manufacturing equipment.

Simulated sine waves are common in battery mode for Off-line/Line-interactive UPS, offering a cost-effective solution for standard equipment. Pure sine waves (found in high-end or On-line UPS) provide cleaner power, minimizing electrical noise and preventing highly sensitive equipment from crashing. Choice depends on budget and load sensitivity.