Page 893 - ABB_Motor _Protection_and_Control_catalogue_20221216

ABB MOTOR PROTECTION AND CONTROL 13/3

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Customer assembled motor starting solutions

ABB Expertise Website access:
ABB has acquired years of experience with respect to problems http://applications.it.abb.com/SOC/Page/Selection.aspx
of coordination and is able to make a complete offer based on
tests performed in its qualified laboratories. This offer covers
400 V AC, 500 V AC, 690 V AC networks. How to combine assemble and wire starter components
A complete database of coordination tables, according to The section "customer assembled motor stating solutions" in
IEC 60947-4-1 (EN 60947-4-1), and UL 60947-4-1 between the this catalog gives the components lists and wiring diagrams to
branch circuit protective device and the motor starter is avail- assemble the most typical motor starting solutions.
able on the ABB Website. It covers direct-on-line Starters, reversing starters or star-delta
In the coordination tables the following short-circuit protection starters protected with manual motor starters or with thermal
devices are recommended: overload relays for Type I or type II coordination for normal
• Case circuit-breakers (MCCBs) starting time.
• Miniature circuit-breakers (MCBs) Note:
• Switch-disconnector-fuses (aM, gG and BS) In order to confirm your starter combination ratings according
• Manual motor starters (MMS). to ABB's lattest coordination test results, or to see other
coordination of components please refer to the above
mentioned SOC tool. SOC tool get constant updates and
Select Optimized Coordination tool (SOC) additions
Selected Optimized Coordination is a web tool for the selection
of ABB products to be used in the following applications:
• Motor starting and protection General remarks applicable to all tables
• Selectivity between protection devices • Each table is defined for a maximum ambient temperature
• Back-up protection of 40 °C. For higher temperatures, apply a derating factor
according to the following rules:
• Other devices protection.
• Fuses: factor of 0.8 applied to In for an ambient temperature
of 70 °C
In order to guarantee the best performance and the longest • MCCBs and MCBs: factor of 0.8 applied to In for an ambient
lifetime, devices involved into the applications mentioned temperature of 60 °C
above (short-circuit protection devices, contactors, overload • The starter derating factor depends on the operating
relays, softstarters, …) need to be coordinated. conditions of thermal overload relays:
• The coordination among devices cannot be determined • Factor of 0.9 applied to In for an ambient temperature of 70 °C.
directly: tests in power laboratories shall be carried out to • Each table is defined for motor currents: 3-phase motors,
qualify the coordination type at low fault and high fault 4-pole
currents, according to IEC or UL standards. • Normal starting means a starting time < 2 s. - Difficult
• ABB coordination tables are the results of such tests and starting means an accelerating time 10 s < ts < 30 s
represent the ABB offerings in terms of motor starting and • Tripping classes of thermal overload relays according to
protection, selectivity, back-up and switch-disconnector
protection. IEC 60947-4-1 (EN 60947-4-1): 10A and 10
• In Selected Optimized Coordination all available ABB • Tripping classes of electronic overload relays according to
coordination tables are stored and easily accessible. IEC 60947-4-1 (EN 60947-4-1): 10E, 20E, 30E selectable
• In the tables with MCCBs, these are fitted with the magnetic
relay alone. Setting is always carried out at > 12.3 Ie AC-3 so
that the transient current peak occurring during starting does
not lead to tripping.

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