Multibloc 2000: Zone 21

This is an ATEX Dust Category 2 / Zone 21 geared motor, available in a cast iron frame. The power options range from 0.18kW to 9kW.

Product Description

Multibloc 2000

Category 2 – Zone 21: Explosive Dust
Gearbox Details
    • Power: 0.18kW to 9kW
    • Torque: 20Nm to 1,500Nm
    • Reduction Ratios: 5.2 to 100
    • A range of six sizes: 31, 22, 23, 24, 25, 26.

» Efficiency: 55 % to 88 %
» Silent operation.

Worm & Wheel Gears

The Multibloc geared motors, with worm and wheel gears, are used to adapt the speed of the electric motor to that of the driven machine.

Their size is, therefore, determined by the motor power (P) expressed in kilowatts (kW) and the output rotation speed of the gear box (nS) in revolutions per minute (min-1). The main characteristic of the speed reducers is the rated output torque (MnS) expressed in Newton-metres (Nm):

Leroy Somer Gearbox Formula

Gearboxes within the Multibloc 2000 range benefit from the ATEX certification: INERIS n° 03 ATEX 3005 X.
For geared motors, this certification becomes: INERIS n° 03 ATEX 0013 X.