Cut Sheet

Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—July 2014 www.eaton.com V7-T8-3
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8.1
Terminal Blocks, Fuse Blocks and Fuse Holders
IEC—XB Series
Technical Data and Specifications
IEC—XB Series
Modular Terminal Blocks for Potentially Explosive Environments
The standard modular
terminal blocks from Eaton
are approved for potentially
explosive environments. In
addition to the usual
approvals, they also have
been approved by a testing
center authorized by the EU.
No extra approval is required
in Intrinsic Safety type
applications.
Modular terminal blocks on
www.eaton.com fulfill the
requirements for “Increased
Safety” protection type when
installation instructions are
followed, and have a type
examination certificate
in accordance with the
Ex directive Ex-RL 94/9/EU.
These test certificates are
recognized in all the EU
member states and beyond.
The modular terminal blocks
are approved for fitting in
Zone 1, the Ex environment,
as well as Zone 2. Zone 1
fitting is conditional upon
terminal blocks being used in
connection boxes approved
for EEx e type protection and
having the equivalent of at
least IP54 protection.
The EEx approved modular
terminal blocks can be
divided into the following
groups:
●
Screw connection
terminal blocks
●
Spring-cage connection
terminal blocks
●
Insulation Displacement
Connection terminal blocks
●
Mini terminal blocks
●
Terminal blocks for
specialized applications
More detailed information
on modular terminal
blocks in the EEx e area is
available on the Internet
at www.eaton.com for
downloading.
Here you will find the
following:
●
Technical data in accordance
with EN 50 019
●
Approved accessories
●
Important installation
instructions and mounting
diagrams
●
EU type examination
certificates
●
General information on
Ex protection
Identifications
Explosion protected electrical
equipment must be marked
so that the safety
characteristics are
identifiable. The identification
of electrical equipment is
described in the harmonized
standard EN 50014, as shown
in the following example:
EN 50014
Standard Example
Identification in Accordance
with ATEX-RL
Electrical equipment that is
certified in accordance with
the ATEX 100a guideline also
receives identification
describing the site for use.
ATE X
Guideline Example
Description Specification
Insulation material Polyamide 6.6
Dielectric strength 600 kV/cm
Creep resistance 600 CTI
Internal insulation resistance 10
12
ohms cm
Surface resistance 10
10
ohms
Flammability rating UL 94 V0
Continuous operating temperature –40 to 257°F (–40 to 125°C)
Description Identification
Manufacturer or
trademark
Eaton
Type designation XBUT25
Abbreviation of
explosion protection
EEx e ll
Protection type
increased safety “e”
e
Equipment group II
Mark of the
testing body
KEMA
Approval number 05ATEX2158 U
Description Identification
Manufacturing data 02.01.2004
Address of the
manufacturer
Duncan, SC
Number of the
appointed dept.
344
Common marking Ex symbol
Equipment group II
Category 2
Use in gas and/or
dust atmospheres
G D