Mercury Elite 3000U supplies 3000VA and 1800W of backup power from four internal 12V 9Ah sealed batteries, and it is now in stock at Mascom International for KSh 30,500. The Mercury Elite 3000U accepts mains input anywhere between 140V and 300VAC, corrects low and high voltage through boost and buck automatic voltage regulation, and transfers to battery in about 10 milliseconds. Four universal output sockets, an LCD status panel, a USB communication port, and a resettable circuit breaker sit on the unit. Collect the Mercury Elite 3000U at Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD.
Kenyan mains supply rarely fails politely. Voltage sags during peak evening load, spikes when a transformer recovers, and drops without notice for hours at a time. That pattern kills hard drives, corrupts accounting files, and shortens the life of printers and POS terminals. The Mercury Elite 3000U is sized for small offices, cyber cafés, dental and diagnostic clinics, salons running card terminals, school computer labs, and shopkeepers whose M-Pesa till and receipt printer cannot go dark mid-transaction. One unit carries a desktop workstation, a monitor, a router, and a network switch together.
Unlike other electronics retailers in Kenya, Mascom International publishes the real runtime maths rather than a vague "long backup" claim, so you can size the load before buying. Users consistently report that the built-in regulator removes the need for a separate stabiliser on the same desk. At Mascom International, we are witnessing steady demand for 3KVA units from Nakuru, Eldoret, Kisumu, and Nairobi businesses that lost equipment to voltage swings. Visit our Kimathi Street counter to see the unit powered up under a live load, or order today and pay only when it reaches your door anywhere in the country.
Common Questions About the Mercury Elite 3000U
How long will the Mercury Elite 3000U run my equipment during a blackout?
Expect roughly 35 to 45 minutes on a 300W load, 15 to 20 minutes at 600W, and 4 to 6 minutes at the full 1800W rating. The four 12V 9Ah batteries hold 432Wh nominal, and sealed lead-acid chemistry safely releases about half of that under load. A typical desktop, 24-inch monitor, and router draw near 250W together, which lands in the 40-minute band.
What can I safely plug into a 3000VA UPS in a Kenyan office?
Add up the wattage of everything you connect and keep the total under 1800W, ideally under 1200W for comfortable runtime. A desktop tower draws 150W to 300W, a 24-inch monitor 25W, a laser printer 400W in bursts, a router 12W, and a CCTV NVR 30W. Never connect a laser printer, kettle, fridge, or air conditioner to the battery sockets, because their startup surge trips overload protection instantly. Four universal sockets set the practical limit.
Is the Mercury Elite 3000U an offline UPS or a line-interactive one?
It is sold across the Kenyan market as an offline UPS, but it carries boost and buck automatic voltage regulation, which is a line-interactive feature. In plain terms, the unit passes filtered mains through to your equipment during normal operation and steps voltage up or down without touching the battery, then switches to inverter power in about 10 milliseconds when supply fails.
Do I still need a separate voltage stabiliser with this unit?
No. The boost and buck regulator inside the Mercury Elite 3000U handles the job for connected equipment, which is the main reason it is priced above simpler 3000VA units. Boost raises input that has sagged toward 140V back to usable output, and buck pulls a 300V spike back down. Both corrections happen without draining the battery, so the pack stays charged for an actual outage rather than cycling every time voltage wobbles.
Will the Mercury Elite 3000U work with a generator or a solar inverter?
Yes, and the wide 140V to 300VAC input window is precisely why. Small petrol generators common in Nairobi and upcountry towns produce unsteady voltage and frequency, especially when a load switches on. The Mercury Elite 3000U rides through those swings instead of rejecting the source and flipping to battery repeatedly. Set the frequency handling to match your generator output at 50Hz. Allow the generator to stabilise for a few seconds before you connect heavy equipment.
How long do the batteries last, and can I replace them in Kenya?
Sealed lead-acid batteries in daily-outage conditions typically give two to four years before runtime drops noticeably. Heat shortens that, so a ventilated position matters in Mombasa, Kisumu, and Lodwar. Replacement 12V 9Ah cells are widely stocked in Nairobi and cost far less than a new unit, and the Elite 3000U takes four of them. Mascom International sources matched replacement sets and fits them at our Nairobi CBD service desk. Always replace all four together, never one.
What does the USB port on the back actually do?
It links the Mercury Elite 3000U to a Windows or Linux computer so monitoring software can read battery level, input voltage, and load percentage. The practical benefit is unattended shutdown: when the battery drops low during a long blackout, the software closes open files and powers the machine down properly instead of letting it die mid-write. That protects databases, QuickBooks files, and CCTV recordings. The port carries data only, not charging power.
How noisy is it, and where should I install the unit?
During normal mains operation the Mercury Elite 3000U runs quietly, with fan noise only under heavier load. On battery it beeps every 10 seconds as a deliberate alert, changes to a one-second beep when the battery is low, and sounds twice per second on overload. Place it on the floor or a shelf with clear air on all sides, away from direct sun, water, and dust. Do not enclose it in a sealed cabinet.
Why buy the Mercury Elite 3000U from Mascom International?
You get verified specifications, a physical shop you can walk into on Kimathi Street, and pay-on-arrival delivery to every county. Mascom International tests each unit on load before it leaves the counter, supplies the correct replacement batteries later, and handles warranty claims directly rather than sending you to a distributor. Buyers from Thika, Machakos, Nyeri, Meru, and Kakamega order this model regularly. Our team will also help you calculate your total load before you commit.
Technical Specifications
Power Capacity and Output Rating
- Rated capacity is 3000VA apparent power and 1800W real power, the figure that actually limits what you can connect
- Nominal output voltage is 220VAC or 240VAC at 50Hz or 60Hz, matching Kenyan mains and standard UK-plug equipment
- Battery-mode voltage regulation holds within plus or minus 10 percent, steady enough for computers, routers, and till printers
- Battery-mode frequency stays within plus or minus 1Hz, which keeps switch-mode power supplies locked and stable
- Output waveform on battery is modified sine wave, suited to computers and networking gear rather than motors or medical pumps
- Transfer time from mains to battery is typically 10 milliseconds, faster than a desktop power supply can notice
Battery System and Backup Runtime
- Four sealed lead-acid batteries rated 12V 9Ah each are fitted internally, wired to a 48V bank totalling 432Wh
- Recharge takes 6 to 8 hours to reach 90 percent capacity after a complete discharge, so overnight recovery is realistic
- Normal-mode charge current sits near 1A, gentle enough to extend cell life across repeated Kenyan outage cycles
- Deep discharge protection cuts output before the bank is damaged, the single biggest cause of early battery failure
- Overcharge protection stops the charger once the pack is full, preventing the swelling that ruins sealed cells
- Automatic self-test runs periodically and flags a weak battery early, before it fails during an actual blackout
Voltage Regulation and Circuit Protection
- Boost and buck AVR corrects input from 140VAC to 300VAC without drawing on the battery, saving charge for real outages
- Overload protection responds when connected equipment exceeds 1800W, with an audible alarm twice per second as warning
- Short circuit protection isolates the output immediately if a faulty device or cable shorts downstream
- A resettable circuit breaker restores service after an overload, so there is no fuse to source and replace
- Over-voltage and under-voltage cut-outs disconnect the load when mains drifts beyond the correctable window
- Surge protection absorbs the spike that arrives when Kenya Power restores supply, the moment most equipment actually dies
Sockets Connectivity and Monitoring
- Four universal output sockets on the rear accept UK three-pin plugs alongside common two-pin equipment leads
- All four sockets are battery-backed, so every connected device rides through an outage rather than only some
- USB communication port links to Windows or Linux monitoring software for load, voltage, and battery readings
- Unattended automatic shutdown through that software closes files safely during long overnight blackouts
- Generator compatibility comes from the wide input window, tolerating the unsteady output of small petrol sets
- Auto-restart brings connected equipment back up by itself once utility power returns, useful for unmanned server corners
Display Alarms and Controls
- LCD panel shows input voltage, output status, battery level, and load percentage at a glance without software
- Battery-mode alarm sounds every 10 seconds so nobody misses that the site has gone onto backup
- Low-battery alarm changes to a one-second interval, giving clear warning to save work and shut down
- Fault condition triggers a continuous tone, distinguishing a hardware problem from a routine outage immediately
- •DC start function powers the unit up from battery alone when there is no mains present at all
- Green power function drops output in battery mode when no load is detected, conserving charge automatically
Build Installation and Operating Conditions
- Microprocessor-controlled tower chassis in black, sized to stand upright beside a desk or under a counter
- Internal battery compartment is serviceable, so replacement cells are fitted without discarding the whole unit
- Ventilation slots on the sides and rear need 10cm of clearance to keep temperatures down in warm coastal offices
- Operating position should be dry, shaded, and dust-controlled, since dust ingress is a common failure cause upcountry
- Weight is substantial because of the four-battery bank, so place it on the floor rather than a light shelf
- Connect the unit to mains and charge it for at least 8 hours before first use for full rated runtime
Package Contents
- Mercury Elite 3000U 3000VA 1800W UPS in black with four 12V 9Ah batteries fitted internally
- Mains input power cable
- User manual and Mercury warranty documentation
- Mascom International receipt and warranty card
Note: USB communication cable and monitoring software inclusion varies by production batch.Mascom International stocks USB A-to-B cables separately if yours arrives without one.
Warranty
Mascom International backs the Mercury Elite 3000U with a 24-month warranty covering manufacturing defects on the electronics, alongside 12-month coverage on the four internal batteries. Batteries are consumable items, so runtime loss from normal ageing sits outside coverage, as does damage from overload, liquid, or unauthorised opening. Our Nairobi CBD service desk processes every claim directly.
Where to Buy the Mercury Elite 3000U in Kenya
Mercury Elite 3000U is available now at Mascom International, located at Old Mutual Building, First Floor Room 4, Kimathi Street, Nairobi CBD. Walk in Monday through Saturday, 9:00 AM to 7:00 PM, to see the Mercury Elite 3000U running under load before you buy. The unit ships in black.
Order through any of the following:
- Phone/WhatsApp: +254 708 852 521
- Email: info@mascomintl.com
- Website: www.mascomintl.com
Mascom International delivers the Mercury Elite 3000U across all 47 Kenyan counties with pay-on-arrival delivery, so you only pay once the unit reaches you. Nairobi and its environs receive same-day delivery. Nakuru, Eldoret, Kisumu, Mombasa, Kakamega, Kisii, and all other major towns receive next-business-day delivery. Mandera, Wajir, Marsabit, Lamu, Tana River, and Turkana receive delivery within 2-3 business days.
Every unit leaves our counter tested on load and covered by the 24-month warranty above.
Buyers across Kenya rely on Mascom International for honest load ratings, current Kenyan pricing, and replacement batteries when the time comes. Tell us what you need to keep running and we will confirm whether this capacity fits before you order.
