Manual motor protective circuit breakers Ex9S80A provide overload, short-circuit and phase-failure protection for the three-phase asynchronous motors with not frequent starting. They are also suitable for power distribution line protection or can be used simply as an isolator. The right setting of adjustable overload current allows to optimize motor protection by means of circuit breaker. In case of 3P application, correct setting of Ir provides also protection against overload caused due to a phase lost. Ambient temperature compensation function reduces the impact of ambient temperature. Release testing mechanism enables to test the function of the system and control rotary knob lock mechanism prevents illegal operation. Motor protective circuit breakers can be combined with wide range of accessories including auxiliary and signal contacts, shunt trip and undervoltage releases. It is possible to create diverse combination of accessories.

Tehnički podaci Ex9S80

Instrukcije za montažu Ex9S80

Sertifikat o usaglašenosti Ex9S80

Katalog Industrijska oprema

Overload release current setting [A]

Adjustment range undelayed short-circuit release [A]

Thermal protection

Phase failure sensitive

Switch off technique

Rated operating voltage [V]

Rated permanent current Iu [A]

Rated operation power at AC-3, 230 V [kW]

Rated operation power at AC-3, 400 V [kW]

Type of electrical connection of main circuit

Type of control element

Device construction

With integrated auxiliary switch

With integrated under voltage release

Number of poles

Rated short-circuit breaking capacity Icu at 400 V, AC [kA]

Degree of protection (IP)

Height [mm]

Width [mm]

Depth [mm]

Power loss [W]