Wenzhou Aolang Import & Export Co.,Ltd

Standard Conformity		IS 8828:96 & IEC(60898:2002)
Type/Series		B	C	D
Rated Current(In)	A	6 - 40	0.5 - 63	0.5 - 63
Rated Voltage(ac)(Ue)	V	240/415	240/415	240/415
Rated Frequency(f)	Hz	50	50	50
Poles		1P.2P.3P.4P		2P.2P3P.4P
Rated Short Circuit Breaking Capacity	kA	10	10	4.5
Magnetic Release Setting		(3 - 5)In	(5-10)In	(10-20) In
Rated Insulation Voltage(ui)	V	660	660	660
Reted Impulse Voltage(Uimp)	kV	4	4	4
Electrical/Mechanical Endurance (no.of operations) less than 32A More than 32A		20,000 10,000	20,000 10,000	20,000 10,000
Ambient Temperature	(℃)	-5 to +55	-5 to +55	-5 to +55
Terminal Capacity(max)	sq.mm	25	25	25
Vibration	g	3	3	3
Shock		40mm free fall	40mm free fall	40mm free fall
PRotection Class			IP - 20
Installation Position			Vertical / Horizontal
Mounting			Clip on DIN Rail (35mm × 7.5 mm)
Case & Cover			Moulded,flame retardant thermoplastic material

Thermal Tripping				Magnetic Tripping
As per	No tripping	Tripping	Time	Hold	Trip	Time
IS:8828:96	current	currebt	Limits	current	current	Limits
	1	1	t	1	1	t
B Curve	1.13×1N		≥1h	3×1N		≥Y0.1s
		1.45×1N	<1h		5×1N	<0.1s
C Cure	1.13×1N		≥1h	5×1N		≥Y0.1s
		1.45×1N	<1h		10×1N	<0.1s
D Cure	1.13×1N		≥1h	10×1N		≥0.1s
		1.45×1N	<1h		20×1N	<0.1s
13=2.55×1N		1s<t<60s for 1N<32A 1s<t<120s for 1N>32A

Based on theTripping Characteristics,MCBs are available in?‘B’、‘C’ and ‘D’ curve to suit different types of applications.
‘B’ Curve:for protection of electrical circuits with equipment that does not cause surge current (lighting and distribution circuits) Short circuit release is set to (3-5) In
‘C’ Curve:for protection of electrical circuits with equipment that causes surge current (inductive loads and motor circuits) Short circuit release is set to (5-10) In
‘D’ Curve: for protection of electrical circuits which causes high inrush current,typically 12-15 times the thermal rated current (transformers,X-ray machines etc.)Short circuit release is set to (10-20) In