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

Potvrda o usklađenosti 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]

Overload release current setting [A]	30 - 40
Adjustment range undelayed short-circuit release [A]	-
Thermal protection	Ano
Phase failure sensitive	Ano
Switch off technique	Thermomagnetic
Rated operating voltage [V]	400 - 690
Rated permanent current Iu [A]	40
Rated operation power at AC-3, 230 V [kW]	11
Rated operation power at AC-3, 400 V [kW]	18.5
Type of electrical connection of main circuit	Frame clamp
Type of control element	Turn button
Device construction	Complete device in housing
With integrated auxiliary switch	Ne
With integrated under voltage release	Ne
Number of poles	3
Rated short-circuit breaking capacity Icu at 400 V, AC [kA]	50
Degree of protection (IP)	IP20
Height [mm]	140
Width [mm]	55
Depth [mm]	137
Power loss [W]	12