1. Introducció
This manual provides essential instructions for the safe and efficient operation of your Minuteman EN450G 450VA Standby Uninterruptible Power Supply (UPS). The EN450G is designed to provide reliable backup power and surge protection for various electronic devices, including gaming consoles, desktop PCs, home office equipment, and network devices. Please read this manual thoroughly before installation and use, and retain it for future reference.
2. Instruccions de seguretat importants
WARNING: To reduce the risk of electric shock, fire, or injury to persons, read all instructions before using this product.
- Aquest SAI conté volums perillosostages. Do not attempt to disassemble the unit. Servicing should be performed by qualified service personnel only.
- No connecteu elements no relacionats amb l'ordinador, com ara equips mèdics, equips de suport vital, forns de microones o aspiradores al SAI.
- No bloquegeu les obertures de ventilació. Assegureu-vos que hi hagi un flux d'aire adequat al voltant de la unitat.
- Do not install the UPS in direct sunlight, near heat sources, or in areas with excessive dust, moisture, or flammable liquids.
- Connect the UPS to a properly grounded AC power outlet.
- The battery is hot-swappable. Exercise caution when replacing the battery. Refer to the Maintenance section for instructions.
- In case of emergency, press the power button to turn off the UPS and disconnect the power cord from the AC power outlet.
3. Producte acabatview
The Minuteman EN450G UPS provides comprehensive power protection. Familiarize yourself with its components:

Figura 1: Minuteman EN450G UPS Unit. This image displays the Minuteman EN450G UPS unit. The front panel features the 'Minuteman Power Technologies' logo, two USB charging ports, and control buttons. The top surface shows four 'Battery & Surge' protected outlets and four 'Surge Only' outlets, clearly labeled. The unit is black and designed for compact placement.
3.1 Característiques del panell frontal
- Botó d'encesa: Encén o apaga el SAI.
- Ports de càrrega USB: Two ports for charging mobile devices.
- Indicadors d'estat: LEDs indicating power status, battery status, and fault conditions.
3.2 Característiques del panell posterior
- Battery & Surge Outlets (x4): Provide battery backup power and surge protection for critical devices.
- Surge Only Outlets (x4): Provide surge protection only for non-critical devices.
- Entrada de CA: Connects the UPS to the wall power outlet.
- Tallacircuits: Protecció contra sobrecàrrega rearmable.
4. Configuració i instal·lació
4.1 Desembalatge
Desembaleu amb cura el SAI i inspeccioneu-lo per detectar possibles danys durant l'enviament. Si detecteu danys, no feu funcionar la unitat i poseu-vos en contacte amb el vostre distribuïdor.
4.2 Col·locació
The EN450G is designed for versatile placement:
- Desktop: Col·loqueu la unitat sobre una superfície plana i estable.
- Pis: Position on the floor, ensuring ventilation is not obstructed.
- Muntatge en paret: The unit can be mounted on a wall using appropriate hardware (not included). Ensure the mounting surface can support the weight of the UPS.
Ensure the installation area is clean, dry, and has adequate ventilation. Avoid placing the UPS near heat-emitting appliances or in direct sunlight.
4.3 Connexió a l'alimentació
- Assegureu-vos que el SAI estigui apagat.
- Plug the UPS power cord into a grounded 120V AC wall outlet.
- Allow the UPS to charge for at least 8 hours before initial use to ensure optimal battery runtime.
4.4 Connexió de dispositius
- Battery & Surge Protected Outlets: Connect critical devices such as your computer, monitor, router, or other essential electronics that require continuous power during outages.
- Punts de venda només per sobretensions: Connect non-critical devices like printers, scanners, or desk lamps that only require surge protection.
CAUTION: Do not connect laser printers or shredders to the battery backup outlets, as their high power draw can overload the UPS.
5. Funcionament
5.1 Encendre/apagar el SAI
- Encendre: Press and hold the power button for approximately 2 seconds until you hear a beep and the power indicator illuminates.
- Apagar: Press and hold the power button for approximately 2 seconds until you hear a beep and the power indicator turns off.
5.2 Indicadors d'estat
The front panel LEDs provide information about the UPS status:
- LED verd (sòlid): UPS is operating normally, providing AC power.
- Green LED (Flashing) & Audible Alarm: UPS is operating on battery power during an outage.
- Red LED (Solid) & Audible Alarm: Battery low or fault condition. Refer to Troubleshooting.
5.3 Temps de funcionament de la bateria
The EN450G provides approximately 3 minutes of runtime at full load (450VA/255W) and 11 minutes at half load. Actual runtime may vary based on connected equipment and battery age.
6. Manteniment
6.1 Substitució de la bateria
The EN450G features a hot-swappable Sealed Lead Acid (SLA) battery, allowing replacement without interrupting power to connected devices. Batteries typically last 3-5 years depending on usage and environmental conditions. A flashing red LED or continuous alarm may indicate a need for battery replacement.
- Ensure the UPS is connected to AC power and operating normally.
- Locate the battery access panel (refer to product diagram if available).
- Carefully slide out the old battery pack.
- Insert the new, fully charged replacement battery pack, ensuring correct orientation.
- Secure the battery access panel.
- Allow the new battery to charge for 8-12 hours to reach full capacity.
WARNING: Use only approved replacement batteries. Improper battery replacement can result in fire or explosion. Dispose of old batteries properly at a recycling facility.
6.2 Neteja
Periodically clean the exterior of the UPS with a soft, dry cloth. Do not use liquid or aerosol cleaners. Ensure ventilation openings remain clear of dust and debris.
7. Solució De Problemes
This section addresses common issues you may encounter with the EN450G UPS. If a problem persists after attempting the solutions below, contact technical support.
| Problema | Causa possible | Solució |
|---|---|---|
| El SAI no s'encén. | Bateria no connectada o descarregada. Cable d'alimentació no connectat. | Assegureu-vos que la bateria estigui connectada i carregada correctament. Verify power cord is securely plugged into wall outlet and UPS. |
| UPS beeps continuously or red LED is solid. | Bateria baixa o condició d'avaria. Overload on battery outlets. | Allow battery to charge. If problem persists, battery may need replacement. Disconnect non-essential devices from battery outlets. Check circuit breaker. |
| UPS operates on battery frequently. | Unstable incoming AC power. UPS sensitivity setting (if applicable, though not specified for this model). | Check the quality of your incoming AC power. Consider connecting to a different outlet. |
| No power from surge-only outlets. | L’interruptor automàtic s’ha disparat. | Press the circuit breaker reset button on the rear panel. Reduce load if necessary. |
8. Especificacions
| Característica | Detall |
|---|---|
| Model | EN450G |
| Capacitat | 450 VA / 255 W |
| Vol d'entrada/sortidatage | 120 V AC |
| Forma d'ona de sortida | Onada sinusoidal simulada |
| Punts de venda | 4 x Battery & Surge Protected, 4 x Surge Only |
| Tipus de bateria | Sealed Lead Acid (SLA), Hot-Swappable |
| Typical Runtime (Full Load) | Fins a 3 minuts |
| Typical Runtime (Half Load) | Fins a 11 minuts |
| Dimensions (P x A x A) | 12.8 x 5.7 x 4.1 polzades (32.5 x 14.5 x 10.4 cm) |
| Pes | 4.4 lliures (2 kg) |
| Opcions de muntatge | Desktop, Floor, Wall Mount |
9. Informació de la garantia
Please refer to the warranty card included with your product or visit the manufacturer's weblloc web per obtenir informació detallada sobre els termes i condicions de la garantia. Conserveu el comprovant de compra per a reclamacions de garantia.
10. Suport tècnic
If you require technical assistance or have questions regarding your Minuteman EN450G UPS, please contact your dealer or the manufacturer's customer support. Have your model number (EN450G) and serial number ready when contacting support.
For more information, you may visit the official Minuteman weblloc.





