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2019-05-27·BA00·III·en·04
Mounting and Installation
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Safety temperature monitor and limiter
Series 8146/5041-STW, 8146/5041-STB,
8146/5051-STW+STB
7.3.1 Electrical Connection
• Please observe the information given in the "Technical data" chapter.
• The conductor must be connected carefully.
• The conductor insulation must reach the clamping units.
• Do not damage the conductor (nicking) when stripping it.
• Ensure that the maximum permissible conductor temperatures and the maximum
permissible surface temperature are not exceeded by selecting suitable electric lines
and means of running them.
• Avoid mechanical damage to the conductor insulation due to rubbing it against
sharp-edged or moving metal parts.
Connection to the mains
• Open the enclosure (see chapter "Mounting/dismounting, operating position").
• Guide the connection lines into the connection chamber using the cable entries.
• Lay the connection lines in the connection chamber in such a way that the permissible
bending radii do not drop below the minimum.
• Connect the conductors according to the enclosed documents (e.g. wiring diagrams).
• Connect the protective conductor; see the following section.
• If necessary, remove loose metal particles, dirt and traces of moisture from the
enclosure.
• Carefully close the enclosure after completing the work.
7.3.2 Back-Up Fuse
• Secure the system by means of the specified electric back-up fuse.
• Ensure sufficient short-circuit current in the system.
DANGER
Explosion hazard due to cable glands without strain relief!
Non-compliance results in severe or fatal injuries.
• Lead cables and conductors securely.
• If the cables are laid loosely, use only cable entries approved for
this type of cable laying.
We recommend using a breather, type 8162 by
R. STAHL Schaltgeräte GmbH.
The breather compensates for differences in pressure that can result from
temperature fluctuations. In addition, it prevents condensation from forming
and guides condensation out of the enclosure.
In accordance with IEC 60529, breathers reduce the degree of protection
regardless of their mounting orientation:
• Reduced to IP64 when mounted on the side
• Reduced to IP56 if opening of breather is installed downwards.
