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UL and the UL logo are trademarks of UL LLC © 2012
Industrial Control Panels
IEC/EN 61439
Dirk Müller
UL 508A Online Certifications Directory
Underwriters Laboratories
Slide 2
UL 508A Online Certifications Directory
The 61439 series
Slide 3
IEC Description Old IEC Standard New IEC Standard
UL Description UL Standard
General Rules IEC 60439-1 IEC 61439-1 Ed2 NA NA
Power Switchgear & Controlgear Assemblies
IEC 60439-1 IEC 61439-2 Ed2 Motor Control Centres
Switchgear Assemblies, Metal Enclosed LVPCB Type
ANSI / UL 845
ANSI / UL 1558
Distribution Boards IEC 60439-3 IEC 61439-3 Panel Boards UL 67
Assemblies for Construction SItes
IEC 60439-4 IEC 61439-4 N.A. N.A.
Assemblies for power distribution in public networks
IEC 60439-5 IEC 61439-5
( Ed1: 2010-11-29)
N.A. N.A.
Busbar Trunking Systems
IEC 60439-2 IEC 61439-6 Busways UL 857
Requirements Manual - Specifier’sGuide
IEC /TR 61439-0
(Ed1: 2010-10-05 )
N.A. N.A.
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Original vs. Assembly manufacturer
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Original vs. Assembly manufacturer
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Ways to comply with 61439 series (per 10.1)
Slide 6
All requirements and
instructions from the OEM
are meet by the Assembly
manufacturer:
No new type test needed.
Assembly manufacturer(panel builder)
OEM
manufacturer
Contractor and
Client (User)
Type Test
Report
(for Modifications
only)
Routi
ne
ver
ific
atio
n
Type Test
Report (for
Original System)
Specifier
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Annex
Slide 7
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Annex D (continued)
Slide 8
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Slide 9
Requirements for Enclosures
• Usage of an IEC 62208 enclosure or
• Design Verification
• Resistance against corrosion
- Damp heat cycling (IEC 60068-2-30)
- Saltspray test (IEC 60068-2-11)
• Resistance to heat
- Dry heat test plus cloth ribbing and normal heat (IEC 60068-2-2, -2-10)
- Glow-wire test (IEC 60695-2-10) or pre-selection
• UV radiation (ISO 4892-2)
• Lifting per 10.2.5
• Mechanical Impact (IEC 62262)
• IP rating (IEC 60529)
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IP testing IEC 60529 for IPX5 waterjet
Slide 10
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Why do we need to repeat tests already
conducted at component level ?• Test with components are mainly done without an enclosure
• Usage within a specific enclosure may change test results (more
difficult or less difficult).
Slide 11
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Verification of temperature rise (10.10)
Slide 12
Options
Testing per 10.10.2 Test
with current or
10.10.3 Derivation from
tested design
InA ≤ 630A
and Single
compartement
Calculation per 10.10.4.2
using IEC 60890
InA ≤ 1600A
and Single
compartement
Calculation of the total
power loss per 10.10.4.2
Several Restrictions – difficult to meet
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SCPD (Short-circuit protective device)
• Not dependent on a SCPD
• SCPD upstream (supply side of the Assembly)
• SCPD included in incoming field
• SCPD included in outgoing functional units
Slide 13
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Slide
14
Verification of Short-circuit withstand
No short-circuit test required if:
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Short-circuit test
Slide 15
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What‘s coming next
• IEC 61439 3rd edition in voting process
Slide 16
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UL Services - IEC-CB scheme
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Slide 18
UL Services – IEC-CB Test report / Certificate
CB – Certificate – UL – Second largest issuer of CB reports
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UL TYPE
EXAMINATION
CERTIFICATE
Can be
additionally
combined with
UL Classification
Mark to
demonstrate
continued
compliance
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UL Classification after Type Examination
CoC to demonstrate
use of the UL Mark
on Panel
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Questions
Slide 21
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