±120VDC External Batteries Give Your Compatible 3-Phase UPS Extended RuntimeThis external battery pack connects to a compatible SmartOnline® S3M-Series 3-phase UPS system to provide long-lasting battery backup for data centers, telecommunications, networks, industrial facilities, security, emergency systems and other mission-critical applications that require high capacity, high availability and extended runtime. The BP240V09K can only be connected in parallel with one other BP240V09K cabinet when using with an S3M10-20K-NIB (UPS without internal batteries) models for longer extended-run operation. Rugged Steel Construction Designed to Last in Demanding IT ApplicationsThe cabinet is made from heavy-gauge steel with a baked powder-coated finish that helps prevent chipping and corrosion. The hinged front door provides easy access to the recyclable internal batteries. The door locks securely to help prevent damage, tampering or theft. Fuses and output breaker protect against potentially hazardous overcurrent. Ships Ready for Immediate DeploymentPre-installed rolling casters allow easy adjustment at the installation location. Adjustable levelers support secure long-term deployment on a stable surface. Includes heavy-gauge cabling with high-current DC connectors for simple installation.