STAR/DELTA STARTER PANEL (AVST1)
General description
Electromechanical star/delta starter for one three-phase deep well or submersible pump with thermal protection.
Start the panel by turning the door interlocking general switch, a blue light will indicate that the panel is operating.
The pump starts when a float switch or a pressure switch closes the contact. The ammetric overload protection is manually restorable.
It is possible to customize the panel by adding accessories according to requirements.
Product Features
- Electromechanical control panel star/delta starter; Input voltage 3~50/60 Hz 400V ±10%
- Very low voltage input for pressure switch or float switch
- Very low voltage input for external minimum level pressure switch or float switch for dry running protection
- Transformer 400V/24V for auxiliary circuits; Selector for AUTO-OFF-MANUAL motors operation (MANUAL temporary on request)
- Blue light for power on
- Green light for motor operating
- Red light for motor protection alarm
- Line contactor in AC3
- Star contactor in AC3
- Delta contactor in AC3
- Timer for star/delta exchange adjustable 0÷30"
- Thermal relais for motor overload protection with adjustable scale internally restorable
- Auxiliary circuits protection fuse
- Motor protection fuses
- Main switch with door interlock
- Thermoplastic box up to 15HP
- Metallic box from 20HP to 300HP
- Output with cable holder
- Protection IP55
- Ambient temperature: -5/+40 °C
- Relative humidity 50% at 40 °C (not condensed)
