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Thermal overload relay for potentially explosive areas
TF96
General description
The extended risks when using these devices in potentially explosive areas requires consistent adherence to the following notes
and standards:
•
EN 60079-0 Explosive atmospheres – Part 0: General requirements
•
EN 60079-1 Explosive atmospheres – Part 1: Equipment protection by flameproof enclosure "d"
•
EN 60079-7 Explosive atmospheres – Part 7: Equipment protection by increased safety "e"
•
EN 60079-14 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
•
EN 60079-17 Explosive atmospheres - Part 17: Electrical installations inspection and maintenance
•
EN 60079-31 Explosive atmospheres – Part 31: Equipment dust ignition protection by enclosure
•
EN 50495 Safety devices required for the safe functioning of equipment with respect to explosion risks
The TF96 thermal overload relay is authorized under device group II, category (2) in the "G" area (areas with potentially explosive
gas, steam, smoke or air mixtures) and additionally for the "D" area (areas with combustible dust).
BVS 15 ATEX F 003
II (2) G
II (2) D
The TF96 thermal overload relay is not suitable for installation and/or operation in potentially explosive areas.
When using the devices in potentially explosive areas, preventive measures must be taken, e. g. within suitable enclosure.
For starter combinations with TF96 devices and AF motor contactors appropriate protection against short-circuit is to be
selected for reaching coordination type "2" according to EN 60947-4-1.
Information regarding verified starter combinations is provided online by ABB.
see "Coordination tables for motor protection"
http://applications.it.abb.com/SOC/Page/Selection.aspx
2CDC106086M6801b / 04.2016
Warning! Hazardous voltage!
Safety instructions
•
Mounting and installation may only be done by
trained technical personnel, according to the
recognized technical rules, regulations, and
relevant standards!
•
Insufficiently tightened locking screws lead to
an inadmissible rise in temperature!
•
Always observe the permitted ambient
conditions (see technical data and catalog).
•
Devices with visible transport damage must not
be used.
ATEX TF96
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