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NFIN Residual Current Device [Back to Contents]
 
Nfin 2p 40/0.3a
 
Nfin4p 40/0.3a
 
Operation Pinciple
 
Application
The residual current device(rcd)nfin is in confrmity with the standards of iec 1008,,vde 0664, cee27 and bs 4293. it can cut off the faule circuit immediately on the occasion of shock hazard or earth leakage of trunk line. Thus it is suitable to avoid the shock hazard and fire caused by earth leakage. nfin rcd is mainly suitable for using in varieties, it can be used in circuits up to sinle phase 240v, three phase 415v, 50/60hz.
 
Specifications

Type

NFIN25

NFIN40

NFIN63

NFIN100

Rated current l¡÷n(a)

25

40

63

100

Rated operating current for earth leakage l¡÷n(a)

0.03,0.1,0.3,0.5

0.1
0.3
0.5

Rated non-operating current for earth leakage l¡÷n(a)

0.5 l¡÷n

Voltage un (v)

240(220)¡¡415(380)

Pole

2,4

 
Main Technical Date

Operating time (second)

l¡÷n

2l¡÷n

0.25A£¨or5 l¡÷n£©

 

0.2

0.1

0.04

Limited value of non-operating
current for balance load
orunbalance load

 

2l¡÷n

In minimum value of rated
Making and breaking capacity

1n=25

1n=40

1n=63

200

3000

400

Rated conditional short
Circuit current Inc(A)

1500

2000

3000

Endurance(times)

4000

 
Dimensions
 
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