Soltree STATS-03 3-way automatic transfer switch triple input voltage display front view1 / 8

Over 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 ModelSTATS-03
Product Type3-Input Automatic Transfer Switch with Triple Voltage Display
Rated Supply VoltageAC 3×220V (N-L1/L2/L3)
Rated Frequency40 / 50 / 60 / 70Hz
Over-Voltage Protection RangeAC 130–300V
Under-Voltage Protection RangeAC 80–210V
Over-Current Protection Range1–63A / 1–80A / 1–100A (per rated model)
Rated Working Current63A / 80A / 100A (Optional)
Voltage Accuracy<1%
Display ModeTriple Digital Display — L1 / L2 / L3 Input Voltage only
Priority Switching SequenceL1 → L2 → L3 (Customizable)
Startup Delay Time1–600s (Adjustable)
Auto-Recovery Delay Time1–600s (Adjustable)
Switching Response Time<0.2s
Installation35mm DIN Rail
Housing MaterialFlame-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 Functions3-Way Priority Switching, Over/Under Voltage Protection, Over-Current Protection, Triple Input Voltage Monitoring
ApplicationCNC Machinery, Server Rooms, Generator-Backed Retail, Solar-Grid Hybrid Systems
CertificationCE, RoHS

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