Manual motor starter Ex9SN25B4A

108947
8592765089472

Manual motor starters are electromechanical protection devices for the main circuit. They are used mainly to switch motors manually ON/OFF and protect them fuseless against short circuit and loss-phase. Fuseless protection with a manual motor starter saves costs, space and ensures a quick reaction under short-circuit condition, by switching off the motor within milliseconds. Manual motor starter combinations are setup together with contactors and overload relays.

Overload release current setting [A]2,5 - 4
Adjustment range undelayed short-circuit release [A]51
Thermal protectionYes
Phase failure sensitiveYes
Switch off techniqueThermomagnetic
Rated operating voltage [V]230 - 690
Rated permanent current Iu [A]4
Rated operation power at AC-3, 230 V [kW]0.75
Rated operation power at AC-3, 400 V [kW]1.5
Type of electrical connection of main circuitFrame clamp
Type of control elementPush button
Device constructionComplete device in housing
With integrated auxiliary switchNo
With integrated under voltage releaseNo
Number of poles3
Rated short-circuit breaking capacity Icu at 400 V, AC [kA]100
Degree of protection (IP)IP20
Height [mm]81
Width [mm]44.5
Depth [mm]91.3
Power loss [W]9