2
The Power to Protect Your Critical Operations
For maximum availability applications, the Liebert Static
Transfer Switch2 (STS2) provides an automatic, seamless
transfer between your critical load and the outputs of two
independent UPS systems in a dual-bus power configuration.
If the primary UPS should fail, the switch will automatically
transfer the loads to the alternate UPS.
Liebert is the market leader in dual-bus power systems,
building the world’s most reliable UPS and Static Transfer
Switch products. Liebert STS2 further extends our
market leadership with design benefits unmatched by
competitive products.
Standard Features Of The
Liebert STS2 Provide Greater
Overall Protection
Reliability:
100% rated, fuseless design.
Hot-swappable circuit breakers.
Flash memory enables firmware updates while
supporting critical load.
Rack-out control/power assembly on units up to
600A to allow maintenance, service or full
replacement without disrupting the critical load.
Flexibility:
Internal CANBUS protocol: high-bandwidth
communication between system components via
twisted-pair cables. Options can be added as
simple network nodes.
Dual-lug installation bus with pem nuts for
single-hand installation and “hot” torque service.
Low Total Cost Of Ownership:
Conservative design margins and excellent
overload capacity.
UL listed.
Color Touch-Screen Interface
The color touch-screen LCD interface allows
you to quickly check the status of the unit and
identify problems. The controls of the Liebert
STS2 are intuitive and simple.
The color LCD monitor is divided into three segments. In addition to a system
mimic diagram, there is a Status/Alarm panel and a section dedicated to
operator instructions and menus. The screen allows you to configure the unit,
including the control of the preferred source, auto/manual retransfer selection,
alarm notification and other system setpoints. You benefit from improved
operator effectiveness, reduced training time, and less chance of operator error.
