Page 32 - Motor protection and control Manual motor starters, contactors and overload relays
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2/6 ABB MOTOR PROTECTION AND CONTROL
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Application examples
02
Motor protection Starter protection
No matter what type of starter is required by the application MO (magnetic-only) manual motor starters are
(direct-on-line, star-delta, soft starter or variable frequency typically used, when motor overload protection is
drive), MS and MO manual motor starters (also known as provided by a separate overload protection device.
motor protection circuit breakers or manual motor This setup is specially beneficial for applications that
protectors) are the right protection devices for electric require auto- or remote-reset of the starter in case of
motors from 100 mA up to 100 A. an overload tripping event (e.g. windmills or HVAC fans).
Circuit protection and control
ABB’s manual motor starters are fuseless circuit breakers
(approved acc. to IEC60947-2) that can be used to control
circuits and protect cables / lines in industrial and commercial
applications from overloads and short-circuits. The built-in
disconnect function allows the usage as main On-/Off-switch,
typically for de-centralized applications (e.g. small machinery
or laboratory systems).
2CDC131067C0202_NC
