1 / 8Over Voltage Protector
STATS-03 3-Way ATS Automatic Transfer Switch with Over/Under Voltage Protection & Triple Voltage Display
When uninterrupted power supply depends on multiple sources being healthy and available, the Soltree STATS-03 gives you complete visibility and automatic control. It accepts three independent AC 220V inputs (L1, L2, L3) and continuously monitors the voltage of each source — the triple digital display shows all three input voltages simultaneously, so operators can assess the health of every supply at a glance without additional metering hardware.
This makes the STATS-03 the right choice for installations where power source quality monitoring is as important as the switching itself: factory production lines feeding sensitive CNC equipment, retail shops with grid plus generator backup, server rooms requiring zero-interruption failover, and solar-plus-grid hybrid systems where source voltage stability needs constant verification.
When the active source falls outside the configured voltage window (over-voltage 130–300V AC, under-voltage 80–210V AC) or exceeds the over-current threshold, the STATS-03 transfers to the next available source in under 0.2 seconds. The priority sequence (default L1→L2→L3) is fully customizable, and both startup delay and auto-recovery delay (each 1–600s) are independently adjustable to prevent nuisance switching during momentary fluctuations. Available in 63A, 80A, and 100A ratings on a standard 35mm DIN rail footprint.
Key Features
- Triple input voltage display — monitor L1/L2/L3 supply health simultaneously without extra metering
- 3-way automatic transfer switch — L1→L2→L3 priority switching, fully customizable sequence
- Sub-0.2s switching response — seamless source transfer protecting sensitive equipment
- Over-voltage protection — configurable 130–300V AC, isolates loads from grid spikes
- Under-voltage protection — configurable 80–210V AC, prevents brownout damage
- Over-current protection — configurable 1A to rated maximum (63A / 80A / 100A)
- Adjustable startup delay 1–600s — prevents nuisance switching on momentary dips
- Adjustable auto-recovery delay 1–600s — controlled return to primary source
- Ideal for CNC machinery, server rooms, generator-backed retail, solar-grid hybrid systems
- 35mm DIN rail mounting — direct fit in standard distribution boards
- Flame-retardant PC housing (UL94 V-0), mechanical life ≥10,000 cycles
- Available in 63A / 80A / 100A current ratings
- CE & RoHS certified
Samples available · OEM pricing on request · Ships worldwide
Technical Specifications
| Product Model | STATS-03 |
| Product Type | 3-Input Automatic Transfer Switch with Triple Voltage Display |
| Rated Supply Voltage | AC 3×220V (N-L1/L2/L3) |
| Rated Frequency | 40 / 50 / 60 / 70Hz |
| Over-Voltage Protection Range | AC 130–300V |
| Under-Voltage Protection Range | AC 80–210V |
| Over-Current Protection Range | 1–63A / 1–80A / 1–100A (per rated model) |
| Rated Working Current | 63A / 80A / 100A (Optional) |
| Voltage Accuracy | <1% |
| Display Mode | Triple Digital Display — L1 / L2 / L3 Input Voltage only |
| Priority Switching Sequence | L1 → L2 → L3 (Customizable) |
| Startup Delay Time | 1–600s (Adjustable) |
| Auto-Recovery Delay Time | 1–600s (Adjustable) |
| Switching Response Time | <0.2s |
| Installation | 35mm DIN Rail |
| Housing Material | Flame-Retardant PC (UL94 V-0) |
| Mechanical Life | ≥10,000 Cycles |
| Operating Temperature | -25°C to +50°C |
| Relative Humidity | ≤50% at 40°C (Non-Condensing) |
| Core Functions | 3-Way Priority Switching, Over/Under Voltage Protection, Over-Current Protection, Triple Input Voltage Monitoring |
| Application | CNC Machinery, Server Rooms, Generator-Backed Retail, Solar-Grid Hybrid Systems |
| Certification | CE, RoHS |
More in Over Voltage Protector

Over Voltage Protector
PN2-VA2 Self-Resetting Over/Under Voltage Protector 40A–80A
Self-resetting over/under voltage and over-current protector with dual digital display — automatically disconnects on fault and restores power when the supply stabilizes, no manual reset needed. 40A / 63A / 80A options.

Over Voltage Protector
PN2-VA3 Self-Resetting Over/Under Voltage Protector 40A–80A
Self-resetting voltage protector for professional electrical contractors and commercial panel installations — white + green dual digital display delivers sharp digit contrast under the bright fluorescent lighting typical of commercial enclosures. Configurable over/under voltage and over-current thresholds, auto-restore, password lock. CE & RoHS certified. 40A / 63A / 80A.

Over Voltage Protector
PN2-VA4 Self-Resetting Voltage Protector 40A–80A with OEM Logo Support
Self-resetting over/under voltage and over-current protector with red + green dual digital display and full OEM logo customization — ideal for distributors, panel builders, and private-label electrical brands. 40A / 63A / 80A options.

Over Voltage Protector
PN2-VA5 Self-Resetting Voltage Protector with Digital Display Logo Customization
Self-resetting over/under voltage protector with digital display logo customization — your brand name or logo appears directly on the device screen, ideal for OEM electrical brands and premium panel builders. 40A / 63A / 80A options.