No load speed

N(0)

rpm

30500

31200

No load current

I(0)

A

0.09

0.05

Nominal speed

N(N)

rpm

19000

20000

Nominal torque

T(N)

mN.m

2.5

2.7

Nominal current

I(N)

A

0.8

0.5

Stall torque

T(S)

mN.m

10

11

Stall current

I(S)

A

2.8

1.6

Max. efficiency

η

%

68

69

Terminal resistance

phase to phase

R(t-h)

Ω

4.4

14.8

Terminal inductance

phase to phase

L(t-h)

mH

0.15

0.52

Torque constant

K(T)

mN.m/A

3.6

7.1

Speed constant

K(n)

rpm/V

2620

1340

Speed/torque gradient

K(▽)

rpm/mN.m

3202

2793

Mechanical time  constant

K(m)

ms

18

15

Rotor inertia

J

gcm2

0.55

0.55