SE3163/SE3263/SE3363

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SE3163/SE3263/SE3363

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.



DIMENSIONS AND MOUNTING




TRIPPING CURVES

 

 

 

 

 

 

 

 

 

 

DIMENSIONS AND MOUNTING



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