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Static Transfer Switches
Static Transfer Switches
An STS is an electric device that rapidly switches between electrical power sources to ensure the highest availability of power supply to sensitive and critical applications.
Overview
The Liebert® LTS is a two-pole automatic transfer device with the capacity of 10/16/32 A. It performs the core functions of detection and transfer in the dual-bus system composed of two ways of AC power, and is used in the high-end uninterruptible power supply applications that require high power supply reliability.
Product Informations
Input connectors type (10 A)
C14 x 2
Input connectors type (16 A)
IEC309 x 2 (Model 1)
.
IEC-C20 x 2 (Model 2)
Input connectors type (32 A)
Hard-wire
Input source
Two ways of input sources
Input mode
1Φ+N+PE
Rated voltage
220/230Vac
Rated frequency
50/60Hz
Voltage range
150 ~ 300Vac
Frequency range
Rated frequency ±5Hz
Voltage distortion
<10%
Output connectors type
C13
Output connectors type (10 A)
C13 & C19
Output connectors type (16 A)
C13 & C19
Rating & Quantity (10 A)
10A x 8
Rating & Quantity (16 A)
10A x 6, 16A x 1
Rating & Quantity (32 A)
10A x 4, 16A x 4
Power factor
0.8 ~ 1.0 lead or lag
Overload capacity
125%, 30min (tested at 30°C)
Efficiency (100% linear load)
99%
Numbers of poles
2 poles
Automatic transfer interval
<6ms (typical), <11ms (maximum)
Operating temperature
0 ~ 40°C
Storage temperature
-40 ~ 70°C
Relative humidity
5 ~ 95%, no condensation
Elevation
3000m
Pollution level
Level II
Dimension (H x W x D)
44mm x 430mm x 250mm
.
84mm x 430mm x 340mm
Weight
4.5kg
.
5kg
Key Benefits
- Reliability
- Triple logic redundancy for uninterrupted power control
- Liebert LTS Solution, with solid-state digital bus transfer, further extends the market leadership with design benefits unmatched by competitive products
- 100% rated, fuseless design
- Flash memory enables firmware updates while supporting critical loads
- Easily replaceable control/power assembly on units up to 400A to allow maintenance, service, or full replacement
- True Internal Triple Redundancy of the logic DSP (Digital Signal Processing)
- Internal Dual-Bus Control Power, with two power supplies
- Input Surge Protection
- Flexibility
- The solution for your configuration
- True Front-Access Design: all mechanical and electronic components are accessible from the front of the unit
- For installation and service no side or rear access is required
- Optimized Transfer Option: eliminates downstream transformer inrush saturation (patented algorithm), and greatly improves operation when used in primary side switching applications
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