Good quality 300 Amp Circuit Breaker - DAB7 Series Miniature Circuit Breaker(MCB) – DaDa

 Advantages

• Two types of overcurrent protection – thermal and electromagnetic.
• High Breaker capacity 10KA
• Independent contact position indicator.
• DIN rail latch with a double fixed position.
• Wide range of operating temperatures from –40 to +50° С.
• Wide engagement lever with improved contact area.
• Notches on terminal clamps lower thermal losses and boost the mechanical stability of connection.

Technical Features

MCB DAB7-63
For protection of general power distribution (IEC/EN 60898-1)
Poles				1P	2P	3P	4P
Electrical performance
Functions				short circuit protection,overload protection,isolationg,control
Rated frequency f (Hz)				50-60Hz
Rated working voltage Ue V AC				230/400	400
Rated current In(A)				6,10,16,20,25,32,40,50,63
Rated insulated voltage Ui (V)				500
Impulse withstand voltage UimpkV				4
Instantaneous tripping type		DAB7-63N		B/C/D
		DAB7-63H		B/C/D
Rated short circuit Icn(kA)		DAB7-63N		6
		DAB7-63H		10
Release type				Thermal magnetic type
Service life(O~C)	Mechanical		Actual value	20000
			Standard value	4000
	Electrical		Actual value	8000
			Standard value	4000
Connection and installation
Protectiom degree				IP20
Wire  mm²				1~35
Working temperature				-5～+40℃
Resistance to humidity and heat				Class 2
Altitude above sea				≤2000
Relative humidity				+20℃,≤90% ;+40℃,≤50%
Pollution degree				2
Installation environment				Avoid obvious shock and vibration
Installation class				Class II , Class III
Mounting				DIN35 rail
Combination with accessories
Auxiliary contact				Yes
Alarm contact				Yes
Shunt release				Yes
Undervoltage release				Yes
Auxiliary contact+Alarm contact				Yes
Dimensions(mm)(WxHxL)			a	18	36	54	72
			b	80	80	80	80
			c	72	72	72	72