The Uninterruptible Power Supply (UPS) shall be powered by 24VDC (nominal) input and provide 24VDC (nominal) output at 100 Watts (max.) for a duration of 1.0 minutes typ. Ultracapacitors shall be employed for energy storage instead of rechargeable batteries for maintenance-free operation. Remote device management shall be provided via Ethernet interface and multiple source platform independent software withSNMP v1/v2c/v3 capability. The UPS shall have the ability to monitorload current and predict Hold Time in single or dual power supply applications. The UPS shall monitor and report temperature to predict changes in capacity over its lifetime. The UPS shall offer DIN rail mounting and UL508 approval for integration into NEMA controlpanels or equipment cabinets.