Online Power Host Power Uninterruptible Power Supply (UPS) 240 – 500 KVA Product Manual

The online power Host Power Uninterruptible Power Supply (UPS) 240 – 500 KVA is a high-capacity, three-phase online double-conversion UPS designed to deliver continuous, conditioned power for critical infrastructure. It is positioned for data centers, industrial plants, healthcare environments, telecom facilities, and enterprise operations that cannot tolerate downtime or power-quality issues. The Host Power UPS line is documented for 10–200 KVA and also includes the 240–500 KVA range, indicating a scalable platform for larger loads and mission-critical deployments.

This UPS is built to protect sensitive equipment from blackout, voltage sag, over-voltage, under-voltage, and sudden power disturbances by keeping the inverter continuously supplying the load. In practical terms, it supports servers, storage arrays, network switches, manufacturing systems, and other mission-critical assets that require stable power around the clock. The main selling points are high availability, fast transferless operation, and suitability for demanding environments where outage costs are high. For buyers comparing enterprise UPS systems, the online power Host Power Uninterruptible Power Supply (UPS) 240 – 500 KVA competes in the same category as other large online UPS solutions used for commercial and industrial applications.

Estimated pricing for this class of UPS typically falls in the tens of thousands to well over one hundred thousand US dollars, depending on kVA rating, battery autonomy, installation, bypass configuration, and service coverage. Availability is generally through direct sales and authorized support channels, and the manufacturer lists sales and service contact points for assistance. For organizations planning business continuity upgrades, this model is best suited for facilities that need dependable backup power, long runtime options, and professional installation support.

Setup Guide for Online Power Host Power UPS 240 – 500 KVA

Before setup, verify the site can support the unit’s input voltage, load capacity, grounding, ventilation, and floor loading. Place the UPS in a clean, dry, well-ventilated electrical room and confirm that all upstream protection devices are correctly rated. The installation process should be performed by qualified electrical personnel only. Connect the input, output, battery, and bypass circuits according to the system drawings, and confirm proper polarity, cable torque, and grounding before energizing the system.

For configuration, use the front display or LCD menu to set operating parameters such as output voltage, frequency, battery settings, alarm behavior, and communication options. If your installation includes parallel capability, ensure the parallel cables are connected correctly and any required jumper settings are matched across units. Pairing and connectivity may include USB, dry-contact, network, or monitoring interfaces depending on the installed options, so confirm the communication card or monitoring module before commissioning.

Power up in the recommended sequence: battery switch, input source, then output/load. After startup, check the LCD for normal status and confirm no alarm indicators are active. If the unit does not start, recheck grounding, battery polarity, breaker position, and incoming utility voltage. Always follow lockout/tagout procedures and avoid working on live terminals. Never bypass safety interlocks or use undersized cables, extension cords, or improvised grounding.

Troubleshooting Online Power Host Power UPS 240 – 500 KVA

Common issues include the UPS not starting, battery not charging, transfer to bypass, overload alarms, and communication failure. If the UPS is offline, confirm that the input source is present, the battery breaker is closed, and the emergency stop is not engaged. If the load is supported by bypass only, reduce the connected load and inspect for overload or inverter faults. If runtime is shorter than expected, test battery health, check ambient temperature, and verify charging time after a full discharge.

Typical alarm and error conditions may include input fault, battery low, overload, overtemperature, and bypass abnormal. Exact error codes can vary by revision and LCD menu layout, so use the on-screen troubleshooting guide and record the displayed status before contacting support. Preventive measures include routine battery maintenance, periodic dust removal, thermal inspection, firmware review, and monthly visual checks of cables, breakers, and fans.

Warranty coverage and service support are handled through the manufacturer’s support channel and 24-hour hotline. For help, contact OnLine Power Sales at (800) 227-8899 or sales@onlinepower.com, and service at 800-PWR-SRVC / (800) 797-7782 or info@800pwrsrvc.com. Keep the serial number, kVA rating, and LCD status ready when requesting assistance.

Pros & Cons of the Online Power Host Power Uninterruptible Power Supply (UPS) 240 – 500 KVA

Pros

High-capacity power protection for data centers, manufacturing, telecom, and healthcare sites that need continuous uptime.
Online double-conversion design helps isolate sensitive loads from utility disturbances and switching events.
Scalable enterprise platform suitable for larger installations in the 240–500 KVA class.
Professional service availability with direct sales and 24-hour support contact options.
Strong value for mission-critical sites where downtime costs exceed the higher upfront investment.

Cons

Higher purchase and installation cost than smaller line-interactive or standby UPS systems.
Requires qualified installation, proper electrical room planning, and ongoing preventive maintenance.
Larger footprint and weight can make deployment harder in compact facilities.
Battery replacement and service planning are essential for long-term reliability.
May be overkill for small offices where a lower-kVA alternative would be more cost-effective.

Compared with smaller UPS units, this model delivers far better resilience and scalability but at a much higher cost. Compared with modular competitors, it may offer less flexibility in some deployments, although it remains attractive for buyers who want a traditional high-power UPS architecture with direct manufacturer support.

Customer Reviews for Online Power Host Power UPS 240 – 500 KVA

Customer feedback for enterprise UPS products in this class is typically very positive on reliability and power quality, with users often giving 4.5/5 stars for uptime protection and load stability. Common praise includes smooth operation during outages, stable output for sensitive systems, and confidence in critical environments. One facilities manager might describe it as “a dependable backbone for our server room during utility fluctuations.”

Common complaints usually focus on installation complexity, the need for professional maintenance, and the cost of batteries or service contracts. Some users also mention that troubleshooting requires checking the LCD status and documenting alarms carefully before calling support. Buyers looking for the best results usually recommend this UPS for large sites with strict uptime requirements, not for small business use. Frequent user advice is to plan for battery testing, ventilation, and service access from day one.

Overall, the online power Host Power Uninterruptible Power Supply (UPS) 240 – 500 KVA is best recommended for organizations that prioritize continuity, scalability, and professional-grade backup power over low upfront cost.

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