INDUSTRIAL DEVICES – Circuit Breakers for Motor Protection

Index
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– Magnetothermal circuit breakers for motor protection Ex9SN25B
– Motor protection circuit breakers Ex9S32A – Motor protection circuit breakers Ex9S80A

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Ex9SN25B Thermal-Magnetic Circuit Breakers for Motor Protection
  • Manual motor circuit breakers for motor protection.
  • Compliant with EN 60947-2 and EN 60947-4-1 standards.
  • Rated operational current (Ie) up to 25 A at 415 V AC-3.
  • Rated operational voltage (Ue) up to 400/415 V.
  • Short-circuit protection.
  • Isolation function.
  • Overload protection.
  • Phase failure protection.
  • Suitable for three-phase and single-phase applications.
  • Wide range of accessories available.

Manual motor starters are electromechanical protection devices for the main circuit. They are primarily used for manual ON/OFF control of motors and for fuse-less protection against short circuits and phase failure. Fuse-less protection with a manual motor starter reduces costs, saves space, and ensures a rapid response under short-circuit conditions by switching off the motor within milliseconds.
Manual motor starter combinations are typically configured together with contactors and overload relays.

Ex9SN25B Thermal-Magnetic Circuit Breakers for Motor Protection
  • Manual motor circuit breakers for motor protection.
  • Compliant with EN 60947-2 and EN 60947-4-1 standards.
  • Rated operational current (Ie) up to 25 A at 415 V AC-3.
  • Rated operational voltage (Ue) up to 400/415 V.
  • Short-circuit protection.
  • Isolation function.
  • Overload protection.
  • Phase failure protection.
  • Suitable for three-phase and single-phase applications.
  • Wide range of accessories available.

Manual motor starters are electromechanical protection devices for the main circuit. They are primarily used for manual ON/OFF control of motors and for fuse-less protection against short circuits and phase failure. Fuse-less protection with a manual motor starter reduces costs, saves space, and ensures a rapid response under short-circuit conditions by switching off the motor within milliseconds.
Manual motor starter combinations are typically configured together with contactors and overload relays.

Certifications

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Ex9S32A Motor Protection Circuit Breakers
  • Manual motor circuit breakers for motor protection.
  • Compliant with IEC/EN 60947-2 and IEC/EN 60947-4-1 standards.
  • Rated operational current (Ie) up to 32 A at 415 V AC-3.
  • Rated operational voltage (Ue) up to 690 V.
  • Protection against overload, short circuit, and phase failure.
  • Ambient temperature compensation.
  • Compact size, also suitable for distribution boards with 45 mm cut-out.
  • Wide range of accessories available.

 

Ex9S32A manual motor circuit breakers provide overload, short-circuit, and phase failure protection for three-phase asynchronous motors with infrequent starting. They are also suitable for the protection of power distribution lines or can be used as isolators. Proper adjustment of the adjustable overload current allows optimal motor protection via the circuit breaker. In 3P applications, correct setting of the rated current (Ir) also ensures protection against overload caused by phase loss.
The ambient temperature compensation function minimizes the impact of environmental temperature variations. The trip test mechanism allows verification of system functionality, while the rotary handle locking mechanism prevents unauthorized operation. Motor protection circuit breakers can be combined with a wide range of accessories, including auxiliary and signaling contacts, shunt trip releases, and undervoltage releases. Various accessory combinations can be configured.

Ex9S32A Motor Protection Circuit Breakers
  • Manual motor circuit breakers for motor protection.
  • Compliant with IEC/EN 60947-2 and IEC/EN 60947-4-1 standards.
  • Rated operational current (Ie) up to 32 A at 415 V AC-3.
  • Rated operational voltage (Ue) up to 690 V.
  • Protection against overload, short circuit, and phase failure.
  • Ambient temperature compensation.
  • Compact size, also suitable for distribution boards with 45 mm cut-out.
  • Wide range of accessories available.

 

Ex9S32A manual motor circuit breakers provide overload, short-circuit, and phase failure protection for three-phase asynchronous motors with infrequent starting. They are also suitable for the protection of power distribution lines or can be used as isolators. Proper adjustment of the adjustable overload current allows optimal motor protection via the circuit breaker. In 3P applications, correct setting of the rated current (Ir) also ensures protection against overload caused by phase loss.
The ambient temperature compensation function minimizes the impact of environmental temperature variations. The trip test mechanism allows verification of system functionality, while the rotary handle locking mechanism prevents unauthorized operation. Motor protection circuit breakers can be combined with a wide range of accessories, including auxiliary and signaling contacts, shunt trip releases, and undervoltage releases. Various accessory combinations can be configured.

Certifications

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Ex9S80A Motor Protection Circuit Breakers
  • Manual motor circuit breakers for motor protection.
  • Compliant with IEC/EN 60947-2 and IEC/EN 60947-4-1 standards.
  • Rated operational current (Ie) up to 80 A at 415 V AC-3.
  • Rated operational voltage (Ue) up to 690 V.
  • Protection against overload, short circuit, and phase failure.
  • Ambient temperature compensation.
  • Wide range of accessories available.

Ex9S80A manual motor circuit breakers provide overload, short-circuit, and phase failure protection for three-phase asynchronous motors with infrequent starting. They are also suitable for the protection of power distribution lines or can be used as isolators. Proper adjustment of the adjustable overload current allows optimal motor protection via the circuit breaker. In 3P applications, correct setting of the rated current (Ir) also ensures protection against overload caused by phase loss. The ambient temperature compensation function minimizes the impact of environmental temperature variations.
The trip test mechanism allows verification of system functionality, while the rotary handle locking mechanism prevents unauthorized operation. Motor protection circuit breakers can be combined with a wide range of accessories, including auxiliary and signaling contacts, shunt trip releases, and undervoltage releases. Various accessory combinations can be configured.

Certifications
Ex9S80A Motor Protection Circuit Breakers
  • Manual motor circuit breakers for motor protection.
  • Compliant with IEC/EN 60947-2 and IEC/EN 60947-4-1 standards.
  • Rated operational current (Ie) up to 80 A at 415 V AC-3.
  • Rated operational voltage (Ue) up to 690 V.
  • Protection against overload, short circuit, and phase failure.
  • Ambient temperature compensation.
  • Wide range of accessories available.

Ex9S80A manual motor circuit breakers provide overload, short-circuit, and phase failure protection for three-phase asynchronous motors with infrequent starting. They are also suitable for the protection of power distribution lines or can be used as isolators. Proper adjustment of the adjustable overload current allows optimal motor protection via the circuit breaker. In 3P applications, correct setting of the rated current (Ir) also ensures protection against overload caused by phase loss. The ambient temperature compensation function minimizes the impact of environmental temperature variations.
The trip test mechanism allows verification of system functionality, while the rotary handle locking mechanism prevents unauthorized operation. Motor protection circuit breakers can be combined with a wide range of accessories, including auxiliary and signaling contacts, shunt trip releases, and undervoltage releases. Various accessory combinations can be configured.

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