IP enclosures protection indexes
Indicates the degree of mechanical insulation of the motor body.
1st figure indicating level of protection against the penetration of solid bodies.
2nd figure: indicating degree to which the motor is waterproof.
||Protected against solid matters (over Ø 12 mm).
||Protected against solid matters (over Ø 2,5 mm).
||Protected against solid matters (over Ø1 mm).
N.B.: Motor BL002 only with standard protection IP34 and IP30 IE.
||Δ t °C
Ambient temperature: 40°C
IEC duty cycle ratings
||Continuous duty. The motor works at a constant load for enough time to reach temperature equilibrium.
||Short time duty. The motor works at a constant load, but not long enough to reach temperature equilibrium, and the rest periods are long enough for the motor to reach ambient temperature.
||Intermittent periodic duty. Sequential, identical run and rest cycles with constant load. Temperature equilibrium is never reached.
Starting current has little effect on temperature rise.
Key / Diagram Glossary
With a brushless motor, the rotational speed is a linear function of
the torque. In the same way, the absorbed current is also a linear
function of the torque. Speed and current change a lot against
The output power is calculated using the formula:
Pn [W]= Mn · S = 2π
60 · n1 · Mn
Since the supply voltage is constant, whereas the current increases
in a linear manner as the torque increases, the absorbed power
trend is a straight line going up. Efficiency is shown from the ratio
between the output power and the absorbed power.
Pa = V · I
Pn = V · I · η
Pn = Mn · Sv
[HP] · 746 = [W].
Example 2 HP = approx. 1500 W.
||Thermal insulation class