Bonfiglioli BN112M4 Motor
Product Overview
The Bonfiglioli BN112M4 is a three phase industrial motor identified by code 8D60020432-M997225. The nameplate data covers 230 and 460 V supply with current values of 16.4 and 8.2 A. The frame 112M and 4 pole design identify mechanical and speed characteristics that must be matched to the driven machine.
The motor is used in pumps, fans, conveyors, gearboxes, and general industrial machinery. Correct installation and maintenance support reliable operation. The nameplate data should be checked before connection to ensure compatibility with the supply and control system.
Construction and Mechanical Design
The motor uses a robust industrial construction with a frame that supports the stator, rotor, bearings, and shaft. The housing provides cooling surfaces and protection for internal parts. The terminal box provides connection access. Bearings support the rotor and transmit loads to the frame.
Mechanical installation requires a rigid mounting base and correct alignment with the driven machine. Couplings, pulleys, and belts should be fitted without impact. Excessive belt tension or overhung load can reduce bearing life. Guards should protect rotating parts.
Electrical Connection and Commissioning
The motor nameplate provides voltage, current, frequency, power, speed, and connection details. The supply and control system must match these values. Star or delta connection must be correct for the available voltage. Protective earth must be connected. The terminal box wiring should be secure and protected from strain.
If the motor is controlled by an inverter, the drive settings should match the motor data. Cable length and shielding should be considered. The direction of rotation should be checked before coupling to the load.
Operation and Monitoring
During operation, the motor should run smoothly within its rated values. Operators should monitor current, temperature, noise, and vibration. Excessive current can indicate overload or mechanical binding. High temperature can result from poor cooling, overload, or incorrect supply.
The motor should not be started too frequently beyond its duty cycle. If the driven machine jams, the motor should be stopped and the cause corrected. Protective devices should remain active.
Protection and Reliability
Reliability depends on correct electrical protection, alignment, cooling, and environment. Overload protection should be set according to the motor current. Short circuit protection must be provided by the installation. The motor should be protected from moisture, dust, and corrosive atmosphere.
If a fault occurs, the cause should be identified before restart. Repeated overload trips indicate a problem that should be corrected. Service work should be performed by qualified personnel.
Maintenance and Service
Maintenance should include periodic inspection of mounting, terminals, cooling, and running conditions. Dust and dirt should be removed from the frame. The terminal box should be checked for tightness. Bearing noise should be monitored. Insulation resistance should be checked when required.
Before service, the motor must be isolated and secured. Cables should be labeled before disconnection. After service, alignment and rotation should be checked.
Integration and Selection Summary
The BN112M4 motor can be integrated into pumps, fans, conveyors, gearboxes, and general industrial machinery. The final application determines mounting, protection, control, and transmission.
Selection should confirm the model BN112M4, code 8D60020432-M997225, 230 and 460 V supply, 16.4 and 8.2 A current data, frame, mounting, shaft, and protection.
