Name					Unit	Value
Main circuit	Rated working voltage (Ue)				V	1140
	Rated working current (Ie)				A	250
	Rated frequency (fr)				Hz	50~60
	Rated making capacity				A	12Ie (AC-4)
	Rated breaking capacity				A	10Ie (AC-4)
	Withstand overload current capacity/s				A/s	8Ie/10
	Power frequency withstand voltage		Between phases, phase to earth		kV	4.2
			Vacuum breaks		kV	10
	Lightening impulse withstand voltage				kV	8
Control circuit		Rated voltage (Us)			V	220
		Rated power (Ps)electric holding			VA	≤600/50 (absorbing/holding)
Auxiliary circuit				Form		4a 3b
				Rated value		AC 380V/5A
Control circuit, auxiliary circuit to earth power frequency withstand voltage					kV	2
Rated operating frequency				Long-term	time/h	600(AC-3), 300(AC-4)
				Short-term	time/h	3600
Mechanical endurance					10000 times	30
Electrical endurance					10000 times	6
Mechanical characteristics		Closing time			ms	≤200
		Original opening time			ms	≤160
		3-phase synchronism			ms	≤3
		Closing tripping			ms	≤10
Note: Rated control voltage can be made according to customer’s requirements.

250A Vacuum Contactor

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