U133 - Star-delta start control box with level relay + sequence and phase failure relay.

Command and protection of pumps used in the extraction of water from wells, arthesian holes or other reservoirs.

  • 415x315x170 mm (<32A) or 615x415x230 (>30A) mm grey RAL7035 polyester box.
  • Motor circuit breaker/Contactor and overload relay with requested trademarks.
  • Timer for regulation of operation period in Star mode.
  • Level relay for protection of lack of water.
  • Sequence phase failure relay for protection against phase failure or phase failure.
  • Automatic functioning, manual or OFF, controlled by a 3 position toggle switch.
  • Connection in reduced tension (24v) for safety remote control connection (C11-C12) (pressure-switch, float-switch or other).
  • Connection with reduced tension (24v) for Start/Stop remote control (P11-P12) (pressure-switch, float-switch or other).
  • Protection of the command circuit by a fuse.
  • Protection of the power circuit against short-circuits by a circuit breaker/magnetic circuit breaker.
  • Protection of the power circuit against over-charges by a circuit breaker (<32A) / overload relay (>30A).
  • Indication of phase presence on the command circuit (yellow signal lamp).
  • Indication of motor ON in Star mode (yellow signal lamp).
  • Indication of motor ON in Delta mode (green signal lamp).
  • Indication of lack of water (red signal lamp).
  • Indication of phase change or phase failure (red signal lamp).
  • Overload trip indication (red signal lamp).


Order codes

10 ~ 16 A
16 ~ 20 A
20 ~ 25 A
25 ~ 32 A
28 ~ 41 A
40 ~ 55 A
52 ~ 65 A
64 ~ 86 A