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Vertiv / Inverter Systems (DC/AC)

Vertiv Liebert LTS UF-LTS16-1P Static Transfer Switch Equipment information & support

The Vertiv Liebert LTS UF-LTS16-1P is an industrial-grade 16A 1U rackmount Static Transfer Switch (STS) engineered with high-speed Silicon Controlled Rectifier (SCR) architecture, delivering seamless sub-5ms power transfers between dual independent AC inputs to guarantee power continuity for mission-critical single-cord telecom and IT systems.

Equipment information

Brand
Vertiv
Equipment model
Vertiv Liebert LTS UF-LTS16-1P Static Transfer Switch
Equipment type
Inverter Systems (DC/AC)
Controller / software version
Confirm against the installed equipment
View full product specifications
Vertiv Liebert LTS UF-LTS16-1P 16A 1U Rackmount Static Transfer Switch (STS)

Information below comes from the current product catalogue. Confirm the controller, software version and configuration of the installed equipment separately.

Physical Form Factor
19-Inch Rackmount
Rated Switching Current
16A Single-Phase Static Transfer Switch (STS)
Transfer Time
≤ 5 ms (ultra-fast seamless dual-power synchronized transfer via thyristors)
Dual AC Input Spec
Dual-redundant single-phase 220V/230V AC independent power inputs (Source 1 & 2)
Output Distribution Sockets
Multiple IEC 320 C13 / C19 branch outlet distribution with overload protection
Status LED Indicators
Front panel clear LED indication for power flow path and fault alarm status

Alarms & troubleshooting

SOURCE_A_FAIL / ABNORMAL
Source A LED turns Red from Green, load automatically transferred to Source B
Source A utility outage, voltage sag below threshold, or supply breaker tripped
1. Verify critical load is stably supplied via Source B without interruption;\n2. Inspect Source A upstream circuit breaker and measure incoming terminal voltage;\n3. Resolve upstream power fault and re-energize Source A feed;\n4. Observe whether STS safely transfers back to priority source per settings.
SCR_FAULT / OVERTEMP
Panel FAULT Red indicator solid, continuous buzzer active
Internal silicon-controlled rectifier (SCR) element failure, driver lost, or heatsink overheating
1. Verify ventilation slots are clear and cooling airflow is unimpeded;\n2. Engage external manual bypass switch to maintain load power during servicing;\n3. De-energize both input sources to conduct safe electrical isolation inspection;\n4. Replace faulted SCR switching cartridge or contact factory support.
OVERLOAD_WARNING / HIGH_LOAD
Yellow OVERLOAD indicator solid, load current exceeds 105% of rated capacity
Connected IT equipment load exceeds rated ampacity or high inrush during server boot
1. Check actual output AC current and apparent power on the monitor;\n2. Audit recently added server power draws and redistribute non-critical loads;\n3. Stagger server power-on cycles to eliminate concurrent inrush spikes;\n4. If capacity is permanently exceeded, upgrade to a higher-rated (32A) STS.

Access Complete Maintenance & Full Alarm Troubleshooting Manual

This page lists high-frequency critical alarm codes commonly encountered in field maintenance. Comprehensive manufacturer troubleshooting matrices, board-level repair guides, detailed electrical schematics, and firmware commissioning manuals are delivered alongside equipment upon formal project procurement, accompanied by dedicated FAE technical support.

Contact Account Manager for Full Manual

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