DPN MCB

1.General

1.1 Application

For protecting cables and equipment against overload and short circuit.

1.2 General rules for choosing MCB

a.Technical data of the network at the point considered.The earthing systems(TNS,TNC),Short-circuit current at the circuit-breaker installation point,which must always be less than the breaking capacity of thru device,betwork normal voltage.

b.There are 2 curve characteristics for KBHB magnetic operation.

B.Curve (3-5 In) protection and control of the circuits against overloads and short-circuits,protection for people and big length cables in TN and IT systems.

C.Curve (5-10 In) protection and control of the circuits against overloads and short-circuits,protection for resistive and inductive loads with low inrush current.

2.Technical Information

2.1 Curves
DPN MCB

	Standard		IEC/EN 60898-1
Electrical features	Rated current In	A	1,2,3,4,6,10,13,20,25,32,40
	Poles		1P+N
	Rated voltage Ue	V	230
	Insulation voltage Ui	V	300
	Rated frequency	Hz	50/60
	Rated breaking capacity	A	4500/6000
	Rated impulse withstand voltage(1.2/50)Uimp	V	4000
	Dielectric test voltage at ind. Freq. for 1 min	kV	2
	Pollution degree		2
Mechanical features	Electrical life		4000
	Mechanical life		10000
	Contact position indicator		Yes
	Protection degree		IP20
	Reference temperature for setting of thermal element	℃	30
	Ambient temperature (with daily average ≤ 35℃)	℃	-5...+40(Special application please refer to P32 for temperature compensation correction)
	Storage temperation	℃	-25...+70
Installation	Terminal connection type		Cable/Pin-type busbar
	Terminal size top/bottom for cable	mm2	16
	Terminal size top/bottom for cable	AWG	18 - 5
	Terminal size top/bottom for busbar	mm2	16
	Terminal size top/bottom for busbar	AWG	18 - 5
	Tightening torque	N*m	2
	Tightening torque	In-Ibs	18
	Mounting		On DIN rail EN60715(35mm) by means of fast clip device
	Connection		From top and bottom
Combination with accessories	Auxiliary contact		Yes
	Shunt release		Yes
	Under voltage release		Yes
	Alarm contant		Yes