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Technical Bulletin
Guidelines for selection of planetary gear units of the 300-INDUSTRIAL series
for installation in hazardous areas
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朗 Bonfiglioli
power; control and green solutions
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・ SCOPE OF DOCUMENT 2
• INTRODUCTION TO THE ATEX DIRECTIVES 2
・ USE, INSTALLATION AND MAINTENANCE 4
• PECULIARITIES OF 300 SERIES GEAR UNITS COMPLIANT WITH DIRECTIVE 94/9/EC 4
- PRODUCT AVAILABILITY 4
- CONSTRUCTIONAL CHARACTERISTICS 5
・ OPERATIONAL CHARACTERISTICS 5
・ SELECTING THE PRODUCT 6
• ORDERING NUMBERS 8
・ DESIGNATION OF IN-LINE (300 L) AND RIGHT ANGLE (300 R) GEAR UNITS 8
- DESIGNATION OF COMBINED WORM+PLANETARY (3/V) GEAR UNITS 10
・ DECLARATION OF CONFORMITY 12
Revisi ons
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• SCOPE OF DOCUMENT
This Technical Bulletin serves as an aid for the selection of 300 series planetary gear units intended for installation in explosion risk areas, classified according to Directive 1999/92/EC.
This Technical Bulletin is an integral part of the 300-IND series catalogue, code 1900, and subsequent revisions, and has the following scope:
describes the constructional characteristics of gear units con forming to the “ATEX” Directive 94/9/EC, where they differ from those of standard construction gear units - see par. .
specifies the selection criteria approved by the Manufacturer to ensure that said gear units ope・ rate in complianee with the minimum safety requirements stipulated by Directive 94/9/EC 一 see par. .
- INTRODUCTION TO THE ATEX DIRECTIVES
Under the provisions of Directive 94/9/EC, an explosive atmosphere is defined as a mixture:
of flammable substances, whether gas, vapour, mist or dust;
with air;
in certain atmospheric conditions;
in which, following ignition, combustion spreads to the entire unburned