CHARACTERISTICS

SYMBOL

UNITS

BLS-220

BLS-221

MAX  SPEED

n

r.p.m

3500

2500

STALL TORQUE  (+/-10%)

Ms

Nm

41

80

STALL  CURRENT  (+/-10%)

Is

A

23,67

34,21

PEAK  TORKE  (+/-10%)

Mj

Nm

164

320

TORQUE-WEIGHT  RATIO

Tw

Nm/kg

1,67

2,32

EMF  CONSTANT  (+/-5%)

Ke

Vs/rad

1

1,35

TORQUE  CONSTANT  (+/-5%)

Kt

Nm/A

1,73

2,34

RELUCTANCE  TORQUE

Ct

Ct

<1.5%

<1.5%

WINDING RESISTANCE (+/-5%)

R

Ω

0,32

0,21

WINDING INDUCTANCE (+/-5%)

L

mH

1,90

1,7

ROTOR INERTIA

J

kgm ²10 ¯³

9,54

18,1

MECHANICAL TIME CONSTANT

Tm

ms

1,76

1,2

ELECTRICAL TIME CONSTANT

Te

ms

5,938

8,095

MASS

M

kg

33

34,5

INSULATION

F

F

PROTECTION

IP - 65

IP-65