The EC BASIC Eb is a multifunction and multiple-input unit for the regulation of speed of three phase electronically commutated motors installed on axial fans, which is designed to regulate different EC motors, in a simultaneous and coordinated way, using programmable input signals.


Power supply: 2ph+PE 400Vac ±10% (other voltages upon request)
Working temperatures: -20°C ÷ 50°C
Junction box in thermoplastic UV protected material with protection class IP55
Regulation mode MASTER or SLAVE
Principle of PID regulation. Optional Proportional mode
Regulation mode MASTER (temperature or pressure probes) or SLAVE (0-20mA, 4-20mA, 0-5V, 0-10V)
PID or Proportional mode regulation
Setting Max fan velocity at night mode

Auxiliary contacts available:

  • S1: mode direct – reverse;

  • SP: Selection setpoint 1 or 2;

  • S3: Night speed limitation;

  • S2: ON – OFF speed control.

N° 1 programmable relay output:

  • RL1 contact relay of general alarm

N° 1 analogic output 0-10V (fan speed regulation)
N° 1 auxiliary output
Led for signalling faults