Enclosure Rating (Protection Degree)

The enclosure rating of the motor has to be suitable to the environment conditions the motor operates in. According to theIEC34-5 (EN 60034-5) standard the designation of the protection degree is expressed by means of a symbol made up of two letters (IP) followed by a two digit number. The first digit indicates the protection degree provided by the motor enclosure in contact with parts in motion, electrically energized, or against the penetration of foreign bodies. The second digit indicates the protection degree of the motor enclosure against damages caused by the penetration of liquids. IP
First digit Second digit................... ....................... No protection. 1 Vertical dropping of water on the machine will not result indamaging effects. First digit Second digit No protection. 2 Vertical dropping of water on the machine will not result indamaging effects when the machine is not inclined more than 15 ° from its normal position. 1 The machine is protected against the penetration of solidbodies greater than 50 mm in diameter (for example, protection against the accidental touch of a hand). 3 Water or rain dropping on the machine at an angle up to60 2 The machine is protected against the penetration ofsolidbodies greater than 12 mm in diameter. ° will not result in damaging effects.
GENERAL CHARACTERISTICS 4 Water spraying on the machine from any angle will notresult in damaging effects to the machine. 3 The machine is protected against the penetration of solidbodies greater than 2.5 mm in diameter. 5 Water jets on the machine from any angle will not result indamaging effects to the machine. 4 The machine is protected against the penetration of solidbodies greater than 1mm in diameter. 6 Waves of water will not result in damaging effects to themachine. 5 The machine is protected against the penetration of dust.The penetration is not completely avoided, but should not compromise the good functioning of the machine. 6 Dust tight machine 7 Immersing the machine in water under specific conditionsof pressure and time will not cause the ingress of a damaging quantity of water. 8 Immersing the machine permanently in water underconditions of pressure and time given by the manufacturer will not result in damaging effects. MGM brake motors come with standard IP54 enclosure rating. On request, motors can be provided with IP55 or IP56 enclosurerating. For use in standard industrial environments IP54 is sufficient. For outdoor applications or for application that involve contactwith water, protection degree IP55 or IP56 is advisable. It’s always advisable to protect the motor as much as possible. During the installation stage secure the proper tightening of the cable gland and the insertion of the wire from the bottom upwards.On request, for outdoor vertical mounting with shaft down, a rain roof (BM series) or a special brake cover (BA series) are availableMGM motors are also available with special corrosion protection for hard environment application such as marine application and tough processing applications in poultry, meat, dairy, snack foods and pharmaceuticals. On request motors can be provided with the following option: • Bearings for high/low temperatures • Oil industrial seal on drive shaft end • Special frame/plates corrosion-resistant surface treatment and/or epoxy painting • Industrial drain holes • Stainless steel nameplate • Stainless steel shaft-end • Stainless steel or zinc plated brake friction surface • Stainless steel nuts, bolts, tie rods and screwsContact MGM for additional information.
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