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Product Model

Liebert STS2 SX 1200-1850A

For maximum availability applications, Liebert STS2 static transfer switch 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.

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Best Suited For:
  • Data CenterColocationHosting
  • Banking Financial and Insurance
  • Government
  • Healthcare
  • Retail and Wholesale
  • Education
Warranty: One Year Limited Warranty Against Defects in Material and Workmanship

Benefits

Ideal replacement for first generation Liebert STS1 switches  Operates efficiently  Optimized transfer algorithm ensures smooth, safe power switching  Internal CANBUS protocol: high-bandwidth communication between system components via twisted-pair cables. Triple redundant logic with dual power feeds. Standard on-unit monitoring and optional centralized monitoring capability provide continuous system visibility. When applied as primary side switching, cost are lower due to requiring only one power distribution unit, a lower current due to 480V vs. 208V, and lower installation and wiring cost. 

Features

Automatic switching for dual bus loads Patented Optimized Transfer option   Matches first generation Liebert STS1 footprint while optimizing conduit landings  Accepts existing Liebert STS1 ancillary accessories and sidecar cabinets    Offers primary or secondary side switching  100% rated, fuseless design Top and bottom cable entry/exit Unity communication network card

The Liebert STS2 from Vertiv is making it easier to protect your critical equipment by giving your single cord loads the reliability of dual cord power or by providing added redundancy to your dual cord devices. With a single, space-saving unit, the Liebert STS2 static transfer switch provides automatic switching between two different AC power sources. This is the 1200-1850A systems in both 60Hz and 50Hz. Multiple input voltages are available. Designed for use in dual-bus power applications, this solution combines fast switching between AC power sources, power isolation, monitoring and grounding into a single package.

Liebert STS2 SX 1200-1850A​
Operating Specifications
Ampere Size
1200-1850 Amps
Voltage
380, 400, 415, 480, 575, 600 VAC
Weight
1430 lbs
Weight
649 kg
Height
88 in
Height
2235 mm
Width
25.7 in
Width
654 mm
Depth
35.6 in
Depth
905 mm

Find Your Area Contact

Products Support Contacts

Showing contacts for Ohio, 43215, USA Change
(UPS HIRE) Support for Products Purchased Directly from Vertiv (Email)
United Kingdom
Product areas of focus: Uninterruptible Power Supplies (UPS), DC Power Systems, Industrial AC and DC Systems, Power Distribution, Power Transfer Switches, Thermal Management, Integrated Solutions, Outdoor Enclosures, Racks and Containment, Software, Monitoring, Desktop KVM and KM, IP KVM, Secure KVM, Serial Consoles and Gateways, Digital Infrastructure Solutions, Custom Thermal
3T Worldwide QRI (Nigeria) Limited
5A, Iron Bar Street, Off Providence road, Lekki Peninsula Phase 1 Lagos 23401 Nigeria
Product areas of focus: DC Power Systems, Power Transfer Switches, Power Control and Monitoring, Thermal Management, Integrated Solutions, Outdoor Enclosures, Software, Monitoring, Control Room Infrastructure, Mobile Workstation
Attractive Solutions
2 Ali Ameen St., Nasr City Cairo Egypt
Product areas of focus: Uninterruptible Power Supplies (UPS), DC Power Systems, Industrial AC and DC Systems, Power Distribution, Power Transfer Switches, Emergency Lighting, Power Control and Monitoring, Thermal Management, Integrated Solutions, Outdoor Enclosures, Racks and Containment, Control Room Infrastructure, Medium Voltage Inverter

Frequently Asked Questions

Q
Do I need a static switch in my power distribution system?
A
There are many ways to design a power backup and distribution system. Please reference our white paper on Emerging Power Architectures in the Reports section on this web page or consult your local sales office for suggestions on how best to leverage and compare your existing equipment, power system goals and our capabilities.
Q
Can the product be customized?
A
There are many custom solutions available for our products. Please contact your local sales office for more information.
Q
Can the STS2 SR be used to replace my older Liebert STS1?
A
Yes, it was designed to also serve as a direct replacement in size and footprint to the first generation Liebert static switches. Customers can even reuse the ancillary cabinets along with wiring.
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