Lafert

TECHNICAL DATA

Motor Type

B71.20Q 20 Nm - 2000 rpm - 8 poles - 400V

Type	Stall torque (Δt=105°C) Mo Nm	Rated speed n rpm	Rated power P_n kW	Rated torque (Δt=105°C) Mn Nm	Peak torque M_pk Nm	Max speed n_max rpm	Moment of inertia J 10⁻⁴ Kgm²	Peack torque acceleration a_pk rad/sec²	Thermal time constant T_th min	Thermal protection threshold Θmax °C	Voltage constant k_e V_s	Torque constant k_t Nm/A	Resistance phase to phase (20°C) R_w Ω	Inductance phase to phase L_w mH	B.E.M.F. @ rated speed E_n Vrms	Stall current I_o Arms	Rated current I_n Arms	Peak current I_pk Arms	Power connector size
B71.20Q	20	2000	3.9	18.5	69	6600	13.1	52672	46	140	1.41	2.44	1.39	14.2	296	8.2	7.6	7/1

DIMENSIONS	Square flange mm	Max length with resolver mm	Max length with encoder mm	Centering diameter ∅ CD mm	Bolt circle diameter ∅ BC mm	Shaft diameter ∅ SD mm	Shaft length SL mm	Fan Kit square mm
B71Q	142	248	259	∅130j6	165	24k6	50	na

DIMENSIONS	Square flange mm	Max length with resolver mm	Max length with encoder mm	Centering diameter ∅ CD mm	Bolt circle diameter ∅ BC mm	Shaft diameter ∅ SD mm	Shaft length SL mm	Fan Kit square mm
B71Q	142	248	259	∅130j6	165	24k6	50	na

DOCUMENTAZIONE DI PRODOTTO

CERTIFICAZIONE DI PRODOTTO

Certificato di Conformità UL - Motori PM

Condizioni Generali di Vendita Lafert S.p.A.

Dichiarazione di Conformità CE - Servo Motori ATEX

Dichiarazione RAEE Lafert Servo Motors S.p.A.

Lafert S.p.A.
Via J.F. Kennedy 43
30027 San Donà di Piave
Venice - Italy