Technical Specifications:
The document provides detailed technical specifications for various fan models operating at different frequencies (50 Hz) and voltages (230V/400V). It includes data on fan types, codes, nominal and maximum current (Inom, Imax), power input (Pin), air capacity (W/1000 m3/h), controllability options, sound pressure levels (Lp), and capacitance (Cond.).

Fan Models and Performance:
Fans are categorized based on their rotational speed (RPM) and diameter (ø in cm). The document lists models such as 2E30, 4E30, 6E40, etc., with specific performance metrics like air capacity at various pressure levels (0 Pa, 30 Pa, etc.).

Controllability:
Fans are electronically controllable (E), transformer controllable (T), or frequency controllable (F). The document notes that frequency controllers can be used with single-phase motors.

Sound Levels:
Sound pressure levels are measured at a 7-meter free blowing distance, with values provided in dB(A).

Standards and Compliance:
All motors meet the IP55 standard, ensuring protection against dust and water.

Dimensional Information:
The document includes a dimensional diagram with measurements for various fan sizes, indicating dimensions for impeller range, number of poles, and packing dimensions.

Contact Information:
Contact details for Vostermans Ventilation offices in the Netherlands, USA, France, and Malaysia are provided for further inquiries.