Cable and line lead-ins
Connect the motors with cable and line lead-ins or by means of a duct system as per EN 60079-14. These must
meet the following requirements:
• EN 50019 for wiring spaces with a degree of protection of "increased safety", (EEx e II marking on the compo-
nent)
• EN 50018 for a degree of protection of "pressure-resistant encapsulation”, (component EEx d IIC(B) marking on
the component)
Specific test certificates must be provided for cable and line lead-ins.
Please note!
In case of motors complying with the new Directive 94/9/EC, (e.g. marking II 2G ...),
these must be mounted only with the supplied original lead-ins or lead-ins that meet
the requirements of the new directive.
Any openings that are not used must be closed with sealing plugs for which the relevant test certificates and/or the
aforementioned markings must be provided.
The supplied sealing plugs for the line lead-ins serve only as protection during transportation and are not an ap-
proved sealing means. This applies also for the storage of motors outdoors. In this case additional rain protection is
required.
The lead-ins supplied as a standard (version 1) are used for the insertion of firmly secured lines.
Version 3 available as a special accessory, with additional pull relief, is used for the insertion of lines in movable
motors.
Please note!
Cable lead-ins and sealing plugs that fail to meet these requirements are prohibited. The
cable and line diameters used must comply with the clamping range specified on the
lead-in.
Follow carefully the operating instructions of the cable and line lead-ins.
Motors with terminal boxes whose mains lead is located in the layer separating the upper and lower parts
Use only the supplied original gaskets to ensure compliance with the “Ex e II” degree of protection. Depending on
the type (see marking on the plug), the plugs are fit for the following diameters.
Follow carefully the operating instructions for the lead-in parts and sealing plugs.
Table 5: Cable diameter
Type
Cable diameter
RS-75
26 to 48 mm
RS-100
48 to 70 mm
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After connecting the mains lead close the terminal box with the upper part.
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Strip the skins of the plugs so that the following condition is fulfilled:
By stripping the skin, the plugs are adapted to the cable diameter so that a gap of less than 1 mm is obtained
between the cable and the plug applied on the cable.
Therefore, an extra layer of skin must be removed from one half of the module compared to other.
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Lubricate the cutting edge and the sealing surfaces of the plug with the supplied grease.
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Insert the plug halves over the cable and completely in the bushing opening.
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Brace it with the screws until a perceivable resistance (maximum torque: 6 Nm) is achieved.
