SE3163/SE3263/SE3363

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SE3163/SE3263/SE3363

Product details

SE3*63 - SAMITE CIRCUIT BREAKER(*=1,2,3)

DESCRIPTION / APPLICATION

A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected. Circuit breakers are rated both by the normal current that they are expected to carry, and the maximum short-circuit current that they can safely interrupt. This latter figure is the ampere interrupting capacity (AIC) of the breaker. It is in conformity with IEC 60947 standard.

MAIN TECHNICAL DATA

Electrical Features	Standard		SANS556-1 IEC60947-2
	Rated current	A	5, 6, 10, 16, 20, 25, 32, 40, 50, 63A
	Poles		1P, 2P, 3P
	AC Volts	V	230V(1P), 415V(2P, 3P)
	Rated frequency	Hz	50/60
	Rated breaking capacity	kA	3
Mechanical Features	Electrical life expectancy	times	4000
	Mechanical life expectancy	times	10000
	Protection degree		IP20
	Best Ambient temperature	℃	30
Installation	Ambient temperature (with daily average≤35℃）	℃	-30℃ to +60℃
	Terminal connection type		Cable/Pin-type busbar
	Connection		Top and bottom
	Tighten torque (max)	Nm	2.5Nm
	Mounting		MINI DIN Rail by means of fast clip device

PART NUMBER EXAMPLE

BASE NUMBER	KA RATING	POLES	AMPERAGE
SE3**	3KA	1st*=1,2,3P	2nd*=5, 6, 10, 16, 20, 25, 32, 40, 50, 63A
EXAMPLE	SE3120=3KA,2P,20A

TEMPERATURE DERATING

The maximum permissible current in a circuit breaker depends on the ambient temperature where the circuit breaker is placed. Ambient temperature is the temperature inside the enclosure or switchboard in which the circuit breakers are installed. South Africa is calibrated at 40°C.