TeSys motor-starter solution
compliance with North American
market
OEM Initi@tive Monaco 2008
Speaker : Didier SCHEER
MT&S08
Introduction
●UL standards & regulations :
● Understand the main requirements for motor starters in
Industrial Control Panels,
● dedicated to North American market
●How to meet these requirements with IEC products
● Understand what solutions for motor starters with usual IEC products
● For motor starters, drives & other loads
●How to answer to SCCR marking requirement
● Use Schneider Electric tested combinations
Schneider Electric - Division - Name – Date
2
North America standards & regulations
● The National electric Code (NEC)
● Governs the installation of most
electrical systems in the US
● Industrial Control Panel : UL508A
Installation
Codes
● Requirements for Industrial Control
Panel design
● Reference for local inspection
● Products standards :
● UL489: Circuit Breaker
● UL98: Disconnect switches
● UL508: Motor starter
● UL508C: Drives
Schneider Electric - Division - Name – Date
NEC, CEC,
MEC
Product Standards
and Certification
UL, CSA, ANCE, ETL,
…
Inspection and
Enforcement
IAEI, OSHA
Safe
SafeProducts
Productsand
and Safe
Safe
Installations
Installations
3
Industrial control panel for North American market
100% safe
& certified
Your Skill :
Applications standards
(UL508A) & General
installation standards
(NEC=NFPA70)
TeSys UL
certified
solutions
Schneider Electric solutions &
expertise enable you to
manufacture safe & certified
equipment for the North
American market.
Required component functions
for a combination motor controller
● UL 508 is the UL safety standard
for industrial control equipment
● Part IV of UL 508 defines six
types of combination starters
● Each type consists of a:
● Motor disconnect
● Branch circuit protection (ShortCircuit Protection & ground fault)
● Motor controller
● Motor overload protection
Motor Branch Circuit
Disconnect Switch
SCPD
(Short Circuit
Protection Device)
Controller
Overload
Motor
Schneider Electric - Division - Name – Date
5
Traditional Types: UL 508 Types A-D
UL 98 Manual Disconnect
UL 489 Inverse Time or
Instantaneous Circuit Breaker
UL 248 Fuses
UL 508 Controller
UL 508 Motor OL Relay
UL 508 Type A or B
Combination Starter
Schneider Electric - Division - Name – Date
UL 508 Type C or D
Combination Starter
6
UL 508 Types E and F
● Types E and F extend the type of
protection available
● Type E utilizes the IEC concept
of “self-protected”
● Type E can be a self contained
unit or a manual combination
starter
● Type F utilizes a Type E manual
combination starter and a
contactor tested to performance
requirements of UL 508 Types A
through D
Schneider Electric - Division - Name – Date
Component
Parts
Disconnecting
Means
Short-Circuit
Protective
Device
Construction Type
A-D
Manual Disc
or C/B
(UL 98 or
UL 489)
Fuse
(UL 248) or
Inst. Trip
C/B (UL
489)
E
SelfProtected
Control
Device
(UL 508)
F
SelfProtected
Manual
Motor
Protector
(UL 508)
Motor Controller Magnetic
(UL 508)
Magnetic
or Solid
State
(UL 508)
Overload
Protection
Integrated
in Manual
Motor
Protector
Overload
Relay
(UL 508)
7
UL 508 Type E TeSys Offering
UL 508 Type E Self-Protected
Combination Starter
UL 508 Type E Self-Protected
Manual Combination Starter
Line Phase Barrier
Disconnect
Branch Circuit Protection
Controller
OL Relay
TeSys U
Schneider Electric - Division - Name – Date
TeSys GV2P
TeSys GV3P
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UL 508 Type F TeSys
•TeSys GV2P with GV2GH7
or GV3P with GV3G66
UL 508 Type E manual selfprotected combination starter
•TeSys D contactor
UL 508 motor controller
Schneider Electric - Division - Name – Date
9
UL 508 Type E or F TeSys
● Keep busbar installation advantages
Large spacing connector GV1G09 + GV2G busbars
UL508 TypeF
Certified at
65KA/480V
UL508 TypeE
Certified at
42KA/480V
&
130KA/480V
with limitor LUALB1
TeSys U
Schneider Electric - Division - Name – Date
TeSys GV2P
+ LC1D
10
Group Motor Installation
● Group Motor = one short circuit protective
device for multiple branch circuits
● Very specific rules apply (NEC 435-30):
1 Short Circuit
Protection Device
● Fractional hp motors :
●Several motors 1hp or less,
SCP not over 15A
● If smallest motor is protected by the SCPD
● Other group applications :
● Each motor controller & ORL
are listed for group installation
● SCPD sized for largest motor
+ sum of the others
● SCPD rating < maximum allowed
for the smallest OLR
Multiple UL 508 motor controllers
and motor overload relays
Schneider Electric - Division - Name – Date
11
Group Motor installations
● UL tested combination at 65KA/ 480Y
● Circuit Breaker UL 489 :
●Compact NSF
●Powerpact
●Fakalama
● Group motor starters UL508 :
●GV2G busbars + GV2ME + LC1D
●GV3P + LC1D
Schneider Electric - Division - Name – Date
12
Drives protection
● Drives are not rated for group motor applications
● Must be protected with specified SCPD
● in accordance with UL certification
● as marked on products or in manual
● Schneider tested combination with :
● Fuses
● UL489 circuit breaker
● GV2P & GV3P UL508 Type E self protected manual
combination starter
●combination tested for 65KA/480V with ATV31,61,71
Schneider Electric - Division - Name – Date
13
Other load protection
● Circuit breakers are Listed UL489.
● Feeder or branch circuit into the
control cabinet
● Internal receptacles for convenience
outlets
● External load circuits for motor control
C60 UL489
Compact NSF
Compact NSJ
● Supplementary protectors are
recognized to UL1077
● Additional protection for sensitive
electronics or any sensitive internal
circuitry like computers, communications equipment, controllers, power
supplies
● UL 489 device must be supplied as
the primary protection for the branch
circuit
Schneider Electric - Division - Name – Date
Powerpact
C60 UL1077
14
Short Circuit Current Ratings (SCCR)
●How can panel manufacturers obtain the needed
SCCR for a given panel?
●Three options:
1. Test each panel construction and record the
construction in their UL procedure
2. Purchase previously tested constructions from a major
supplier of equipment, such as Schneider
Electric/Square D, that can be tabulated in the control
panel manufacturer’s UL procedure
3. Apply the method described in UL 508A, Supplement
SB (weakest-link)
Using the interrupt rating of the main overcurrent protective
device for the panel is not an acceptable method.
Schneider Electric - Division - Name – Date
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Product solutions
● Use Schneider Electric’s tested combinations
● Tested and UL validated & certified
–
–
UL ID number assigned to combination
to substantiate ratings
Available on site :
http://www.us.squared.com/ul508a
● SCCR ratings from 10kA to 100kA
–
SCCR ratings to meet all your application needs
● Simplifies panel construction and calculation of
panel SCCR rating.
–
Reduces labor costs
Schneider Electric - Division - Name – Date
16
UL vs IEC : What are the differences?
● The panel should be designed according to
UL508A standards
● Overcurrent protection should be :
● UL489 Circuit Breakers : NSF & C60 offers
● UL508 Type E or Type F combination starter
or group installation solutions : TeSys motor
starters
● The Panel should be SCCR rated
● Using interrupt rating of the main overcurrent
protective device for the panel is not an
accepted method
● Using Schneider Electric’s tested
combinations saves you time
Schneider Electric - Division - Name – Date
17
- Meets both UL / IEC standards
- Keep life simple with TeSys solutions
- Schneider Electric proposes UL508A
expertise to update your equipment
http://www.us.squared.com/ul508a