OMRON BU100RE is a 1000VA / 800W online double-conversion UPS made for the Japanese market. Its output can be set to 110/115/120V, so it also runs on North American and other 110–120V mains. The replacement battery is the BUB100RE, and runtime can be extended with the optional BUM100RE expansion battery.Japan-domestic UPS units like the BU100RE are often built into Japanese-made machines — semiconductor and SMT lines, inspection systems, machine tools and lab analyzers. Replacing a failed unit with the same model avoids rewiring and re-qualification. We ship genuine new units from Tokyo by FedEx; tell us your country and we will confirm voltage and plug before you order.Quick facts for international buyers Model BU100RE Usable on 110–120V mains Yes — set the voltage mode to 110/115/120V. Suitable for the USA, Canada, Mexico, Taiwan, the Philippines (110V areas), parts of Central/South America and Saudi Arabia, and Japan. For 220–240V mains a step-down transformer is required. Input voltage AC75±2~143±2V Input plug / connection NEMA 5-15P Output outlets NEMA 5-15R Replacement battery BUB100RE Expansion battery (optional) BUM100RE Battery type Sealed lead-acid (VRLA), non-spillable. Expected life: 4–5 years at 20°C. Market Genuine new product for the Japanese market. Manuals and labels are in Japanese. Need help? See the OMRON / Mitsubishi UPS battery cross-reference, or contact us with your UPS model and country and we will confirm compatibility before you order. Manufacturer specifications UPS topology Online double-conversion (always-on inverter) Form factor Vertical installation, horizontal installation, rack mount type Rated input voltage AC75±2~143±2V Rated input frequency 50/60Hz±4Hz Number of input phases Single-phase 2-wire (with ground) Input plug 3P (NO 5-15P) Rated output voltage 100V mode AC100±2%、110V mode AC110±2%、115V mode AC115±2%、120V mode AC120±2% Rated output frequency 50/60Hz±0.5% Number of output phases Single-phase 2-wire Output outlet type NO 5-15R Backup outlets 4 Non-backup outlets (surge only) 0 Maximum output capacity (W) 800W Maximum output capacity (VA) 1000VA Backup time (at full load) 7 minutes Output voltage during battery operation 100V Output frequency during battery operation 50/60Hz±0.5% Output waveform during battery operation Sine wave Transfer time 0 ms (no interruption) Battery type Sealed lead-acid (VRLA) Number of batteries 1 Charging time 12 hours Bundled power management software Yes (PowerAct Pro, UPS service driver) Surge function Yes – power-line noise and lightning surge protection Safety standards UL1778, CE, RoHS Dimensions 434(W)×470(D)×85(H)mm Weight About 17kg Included accessories 3P-2P conversion plug, connection cable (RS232C) Use ambient temperature -10°C to 55°C ultra-long-life battery (expected life: 5-7 years) Battery expansion possible (BHM100PC)