- Minuteman Entrust line interactive uninterruptible power supply- 500VA/300W- Provides users all the features, usually available in higher pricedUPS products, to protect your valuable equipment: voltage regulation,spike and surge protection and battery backup- Use: whenever cost is a critical factor, for short runtime battery backup requirements, carry-over to generator support, small footprint requirements- Applications: small capacity equipment loads, desktop/laptop workstations, small key systems, VoIP