Uninterruptable Power Supply solutions (UPS)

Providing reliable backup power at network-critical, high-capacity intersections where Siemens traffic controllers are installed.

Siemens Uninterruptable Power Supply (UPS) solutions are optimised for use in traffic signal applications to ensure that full traffic control is maintained during short term power interruptions and longer term mains power failures.

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The UPS system uses the latest lead crystal technology to deliver excellent charge performance, very high operating efficiency and enhanced operational life. Lead crystal batteries offer an operational life of typically 6-12 years, compared to 2-4 years achievable with standard lead acid types and provide a charge time which is potentially faster than conventional lead acid batteries.

Temperature resistant and easy to transport, lead crystal batteries offer a much wider operating temperature range than traditional lead acid batteries and are classified as non-hazardous making them safe to transport by land, sea or air. For most traffic applications, the use of lead crystal batteries eliminates the need for special cabinets, reducing the overall cost of the UPS solution and increasing reliability.

With no requirement for expensive and large air-conditioned enclosures, the UPS solution can be housed in standard Siemens ST950-style controller cabinets and is both scalable to suit intersection load capacity of up to 2KW and ideally suited to LED sites.

UPS fault and status reporting is provided by Siemens remote monitoring and UTC and optional enhanced management of the UPS system can be delivered via a dedicated IP connected management system.

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