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Weidmuller TBs shape up to shake out

Weidmuller terminal blocks receive new approvals for thermal aging and seismic qualification.


Weidmuller of Markham has announced
that they have secured Seismic approval for several families of their
DIN-rail mounted terminal blocks.  These include the W (screw clamp),
KDKS (screw clamp fuse terminal), P (Push In connection), Z (tension
clamp) and AKZ (TS15 screw clamp) series. This further

Weidmuller terminal blocks on a seismic testing gig
expands
Weidmuller’s range of DIN-rail mounted terminal blocks that have
approvals for thermal aging and seismic qualification for
cabinet-mounted instrumentation and control equipment. These approvals
certify that the terminal blocks meet necessary standards for use in
nuclear applications in addition to general industrial applications.

The
seismic testing is conducted to determine if products are capable of
maintaining specified performance requirements before, during and
following a Design Basis Earthquake (DBE). The test for thermal aging
determines if the product can withstand temperatures of 38°C for a
minimum of 40 years.  

The new approvals apply to Weidmuller
DIN-rail mounted terminal blocks that feature housings made from Wemid,
which has a UL 94 V-0 flammability rating. This includes Weidmuller’s
screw clamp, tension clamp and Push-in technology terminal blocks that
are DIN-rail mountable on TS 35 rail. In addition, a selected group of
TS 15 DIN-rail mount screw clamp terminal blocks have received the new
seismic approvals.

The approvals for thermal aging and seismic
qualification for cabinet-mounted instrumentation and control equipment
are in accordance with AECL Technical specification 98-68000-TS-011
Rev.1, and AECL technical specification 87-30000-TS-005.


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