Page 162 - 温州西卡电器有限公司（WENZHOU XIKA ELECTRICAL CO.,LTD.）

> SNS Series moulded case circuit breaker

> Application
SNS moulded case circuit breaker is one of the most advanced type breakers in the world, which
adopts international advanced design and manufacture technology. They are suitable for short
circuit and overload protection for circuit of AC 690V 50/60Hz, rated current from 12.5A to 630A.
Its rated insulation voltage is 690V. It can make and break the non-frequently circuit in the normal
conditions. It takes protect effect when mouse cage motors non-frequent start, breaking off work-
SNS 100N-3P ing and protecting overload, short circuit and lacking voltage. It complies with IEC60947-2.
> Tripping characteristics

Thermodynamic release (ambient temp+40°C) Operational current
Rated current of of magnetic
release (A) 1.05In (cold state) 1.30In (heat state)
inoperative time (h) inoperative time (h) release (A)
In 63 1 < 1 10In±20%
63 < In 100 2 < 2 10In±20%
100 < In 630 2 < 2 5-10In±20%
Thermodynamic release (ambient temp+40°C)

Rated Current of 1.0In 1.20In 1.50In 7.2In (heat Operational current
SNS 160N 4P Release (A) (cold state) (heat state) (heat state) state) of magnetic
inoperative operative operative operative time release (A)
time time time
12.5 In 400 =2h < 2h 4min 2S<Tp 10S 12In±20%
> Specifications
Arcing Ultimate Servies Operating
Rated Rated over short short perfor-
Rated
insulation operating distance circuit circuit mance
Type current Poles
voltage (V) voltage (mm) breaking breaking (times)
(A)
(V) capacity capacity On Off
SNS1-100D 12.5,16,20 18 18
SNS1-100N 25,32,40,50 25 25 1500 8500
SNS1-100H 63,80,100 70 70
SNS 400N-3P
SNS1-160D 16,20,25,32, 25 25
SNS1-160N 40,50,63,80, 36 36 1500 7000
SNS1-160H 100,125,160 70 70
SNS1-250D 25 25
160,180,
SNS1-250N 3,4 950 690 0 36 36 1000 7000
200,225,250
SNS1-250H 70 70
SNS1-400D 200,225, 35 35
SNS1-400N 250,300, 45 45 1000 4000
SNS1-400H 315,400 70 70
SNS1-630D 315,350, 35 35
SNS1-630N 400,500, 45 45 1000 4000
SNS1-630H 600,630 70 70
SNS 1250N-3P
SNS1-1200D 555,600 70 50
630,800 500
SNS1-2500N 1000,1250 70 50
>E 151