32A Single-Phase Static Transfer Switch - Dual Source Automatic Transfer
Overview
The Hannibal STS-1P-32A is a static transfer switch built to maintain power availability by transferring critical loads between two AC sources.
It continuously monitors source voltage and frequency, checks synchronization and transfers the load to the available or prioritized source within milliseconds, helping protect sensitive equipment from interruptions.
Key features
- Nominal current: 32A.
- Transfers critical loads between two independent AC sources without mechanical moving parts.
- Synchronized and asynchronous transfer support with selectable asynchronous transfer enable/disable.
- Selectable source priority via front panel and 2x16 LCD display.
- Thermal fuse and overvoltage protection at source inputs.
- Designed for data centers, telecom, industrial processes and sensitive critical power loads.
Technical specifications
| Single-phase | 110-265 VAC, 1Ph + N + PE, +/-20% transfer range, 16A-150A. |
|---|---|
| Three-phase | 200-600 VAC, 3Ph + N + PE, +/-15% transfer range, 50A-800A. |
| Transfer | <4 ms synchronized and approximately 10 ms unsynchronized transfer. |
| Topology | Thyristor STS, break-before-make, automatic/manual/remote transfer. |
| Efficiency / overload | >99% efficiency; overload withstand up to >200% for 250 ms. |
| Communication | RS232 and dry contact standard; RS485, TCP/IP and SNMP optional. |
Applications
- Data centers and server rooms.
- Telecommunication systems.
- Industrial process control.
- UPS bypass and dual-source distribution.
- Critical loads requiring high source availability.