Electric Motors Overview
Nicolini & Co is a leading Italian manufacturer of electric motors.
Their motors have been fully manufactured in the Campagnola Emilia workshop since the establishment of Nicolini & Co 35 years ago. The company is still proudly run under the direct supervision of the founder members.
Nicolini & Co. produces both three phase and single phase electric motors, self-breaking and explosion-proof electric motors and, more generally, electric motors for any type of use, from size IEC63 to size IEC200.
Nicolini & Co. has a great experience in developing special motors as requested by their customers: it manufactures flanges and shafts upon specific customized request; it designs motors with special electrical performances, and provides constant technical and commercial assistance, guaranteeing a collaborative relationship with customers.
Definition of "IEC" Frame Size
Put simply, the frame size of a motor relates to certain critical dimensions of the casing and mounting arrangement that have been universally agreed upon and adopted by manufacturers. For instance, shaft length and diameter, the width and depth of the mounting feet hole centres, the shaft height and the shaft end to the foot mounting hole centres.
The idea being that manufacturers all make motors to the same sizes and that a motor in a certain application can be interchanged between different makes. If you don't have a frame size stated on the name plate you need a dimensioned drawing of the frame size (usually you can get them from makers websites) and then measure the distances mentioned and cross reference until you can identify and recognise the size.
European motors usually use IEC frames, which use the distance from the centre of the shaft to the base (assuming it's foot mounted) in mm to designate the frame size i.e. 100 or 132.
Definition of "IP"
IP (Ingress Protection) codes define how well an enclosure protects against the external environment.
As the number gets higher, the protection gets better.
The first digit defines the protection level against "solids", the second against "liquids". You MUST use both digits to define an enclosure.
For the first digit:
- 0 = No protection
- 1 = Protected against objects greater than 50mm in diameter
- 2 = Protected against objects greater than 12 mm diameter
- 3 = Protected against objects greater than 2.5 mm diameter
- 4 = Protected against objects greater than 1.0 mm diameter
- 5 = Dust protected
- 6 = Dust tight
For the second digit:
- 0 = Not protected
- 1 = Protected against dripping water (i.e. vertical plane)
- 2 = Protected against dripping water up to 15 degree angle
- 3 = Protected against spraying water
- 4 = Protected against splashing water
- 5 = Protected against water jets
- 6 = Protected against heavy seas
- 7 = Protected against effects of immersion
- 8 = Protected against submersion
