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- INSTALLATION DEVICES
- Motor Protective Circuit Breakers
- Manual motor starter Ex9SN25B4A
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 protection | Yes |
Phase failure sensitive | Yes |
Switch off technique | Thermomagnetic |
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 circuit | Frame clamp |
Type of control element | Push button |
Device construction | Complete device in housing |
With integrated auxiliary switch | No |
With integrated under voltage release | No |
Number of poles | 3 |
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 |