The Sinotimer STVP93S5-125A three-phase voltage monitor monitors the voltages of all three phases and automatically selects one to supply a single-phase load. If the active phase falls outside the configured voltage limits, it can automatically switch the load to another available phase. The L1, L2 and L3 voltages, current and active phase are shown digitally, while settings are adjusted using the device buttons.
The input is three-phase with neutral (L1, L2, L3, N), and the output is single-phase (L, N). It is DIN-rail mounted and used in electrical panels in homes, commercial premises and workshops where automatic phase selection is required to maintain a single-phase supply. It does not replace protection against short circuits, overloads or current leakage.
- Type: Three-phase electronic phase selector with voltage monitoring
- Mounting: DIN rail
- Rated current: 125 A
- Input system: Three-phase with neutral (L1, L2, L3, N)
- Output: Single-phase with neutral (L, N)
- Monitored voltage: L-N per phase
- Upper voltage limit setting: 230–300 V AC
- Lower voltage limit setting: 140–210 V AC
- Switching time: Adjustable from 1 to 30 s
- Voltage display: L1, L2 and L3
- Current display: Digital
- Active phase display: L1, L2 and L3
- Automatic phase switching: Yes
- Manual control: ▲ / ▼ / M / ON-OFF buttons
- Phase sequence: Automatic selection of an available phase
- Width: Approx. 123 mm
- Height: Approx. 98 mm
- Depth: Approx. 75 mm
- Placement
- Rail
- Type
- Three-phase
- Digital
- Yes
- Protection Type
- Phase Sequence
Important information
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.