Weidmüller is a leading international provider of solutions for electrical connectivity,transmission and conditioning of power, signal and data in industrial environments.The company with headquarters in Detmold/Germany develops, produces and sellsproducts in the field of electrical connectivity and electronics all over the world.
1 Other than noted 36.3.
Exception: When the design of
the field wiring terminals preclu-
des the possibility reduced
spacing due stray strands or
improper wiring installation, then
clearance and creepage distances
at these terminals are able be
evaluated accordance with the
Standard for Insulation Coordination
Including Clearance and
Creepage Distances for Electrical
Equipment, 840.9.3:
If the design the field wiring terminals
… will preclude the possibility reduced
spacing due stray strands improper
connections, clearance and creepage
distances the field wiring terminal may
be evaluated accordance with 840.W.
• Accepted for applications 508C
without further requirements.2.4 for details applying
UL 840.1.9.
• 508C enables the use field
terminals approved 1059 for
300 used for 600 V
applications under certain conditions.2.10
Technicalappendix
W
UL design-in recommendations for 600 applications
Summary the most important
UL requirements:
• PCB components are approved
UL 1059 and are tested without
PCB application environment.
UL840UL508C
applications
UL1059
components
150 300 600
.
The approval for higher voltages 508C 840:
UL 1059 testing conditions:
• Measurement clearance and
creepage distances directly the
product.2 Clearances between uninsu
lated live part and the walls a
metal enclosure, including fittings
for conduit armored cable, shall
be accordance with 36.
UL [V]
Exception,
see 508C 36.3 The clearance and creepage
distance field wiring terminals
shall accordance with the
requirements 36.
Design-in recommendations: applications for 600 V
in accordance with UL
Extract from 508C: (36.
• For more detailed information, please
refer the drawing below.9.
The clearances shall deter-
mined physical measurement.
• The application designer must refer to
the application-related standards,
not 1059.9.
36.9.9.3, clearance and creepage
distances are able evaluated
in accordance with the require-
ments the Standard for Insula
tion Coordination Including Clear
ance and Creepage Distances for
Electrical Equipment, 840.9. frequency converters).
36.g.
• Weidmüller Powermate Range plug-in
connectors and power terminals
comply with the conditions and may
be used for 600 applications
UL 508C.
• Applications are approved 508
(or 508C Power Conversion
Equipment, e.
See 36.9 Spacings for drives evaluated accordance with 840)
36.2 and
36
