Product Description, Applications

LIEBERT STS2™
The Liebert STS2™is a static transfer switch that allows automatic switching for dual bus loads, providing a seamless transfer of power to two independent UPS systems. The switch will automatically transfer the loads to the alternate UPS should the primary one fail. It is available in 100A, 250A, 400A, 600A, 800A and 1000A sizes, and is 60 Hz or 50 Hz field selectable.

The unit is extremely flexible, with front access to all components, allowing easy installation and maintenance. It can be placed adjacent to or in back of other equipment, or against a wall. All key components are visible and accessible from the front of the unit.

Other notable features include standard on-unit monitoring, a 100% rated, fuseless design and hot swappable circuit breakers. A flash memory enables firmware updates while supporting critical loads.

The Liebert STS2 is ideal for data centers, telecommunications, industrial process equipment and laboratories.

LIEBERT STS2/PDU™
The Liebert STS2/PDU provides power distribution and automatic switching between two different AC power sources. Housed in a single, space-saving self-contained cabinet, it’s a versatile solution that combines several other functions: power isolation, distribution, monitoring and grounding.The Liebert STS2 is available in 250A, 400A, 600A and 800A systems in both 60 Hz and 50 Hz.

Features include:

• Dual-bus power distribution - it can switch automatically or manually between two AC power sources
• Computer-grade grounding
• Handles non-linear loads
• Monitoring
• Space savings
• Easy installation
• UL listed as a complete system