Description
NS series CE MCCB
NS series moulded case circuit breaker/mccb is one of the most advanced type breakers in the world, which adopt international advanced design and manufacture fechnology. They are suitable for short circuit and overload protection for circuit of AC 690V 50/60Hz, rated current from 12.5A to 630A. It takes protect effect when mouse cage motors non-frequent start, breaking off working and protecting overload, short circuit and lacking voltage.
Tripping Characteristics of MCCB
Rated Current of Release(A) Thermodynamic Release (ambient temp +40C) Operational Current of Magnetic Release(A)
1.05In(cold state) inoperative time(h) 1.30In(heat state) operative time(h)
In≤ 63 ≥ 1 <1 10In+20%
63 ≥ 2 <2 10In +20%
100 ≥ 2 <2 5-10In+20%
Rated Current of Release(A) Thermodynamic Release (ambient temp +40C) Operational Current of
Magnetic
Release(A)
1.0In(cold state)operative time(h) 1.20In(heat state)operative time(h) 1.50In(heat state)operative time(h) 1.01In(heat state)operative time(h)
12.5≤ In≤ 400 ≥ 2 <2 ≤ 4min S 12In+20%
Main Technical Specifications
Type Rated Current (A) Poles Rated Insulating Voltage(A) Rated Operating Voltage (A) Acting Over Distance (mm) Ultimate short circuit Breaker Capacity Servies Short Circuit Breaker Capacity Operating performance(times)
Rated current of release(A)
Thermodynamic release(ambient temp+40 )
Operation current of magnetic release(A)
1.05ln(cold state)
inoperative time(h)
1.30ln(heat state)
inoperative time(h)
ln 63
1
1
10ln 20%
63 ln 100
2
2
10ln 20%
100 ln 630
2
2
5-10ln 20%
Rated current of release(A)
Thermodynamic release(ambient temp+40 )
Operation current of magnetic release(A)
1.0ln(cold state)
inoperative time(h)
1.20ln(heat state)
inoperative time(h)
1.50ln(heat state)
inoperative time(h)
1.0ln(heat state)
inoperative time(h)
12.5 ln 400
2
2
4min
2S Tp 10S
12ln 20%
Specifications:
Type
Rated current(A)
Pole No.
Rated insulating voltage (V)
Rated operating voltage
Arcing over distance (mm)
Ultimate short circuit breaking capacity(kA)
Services short circuit breaking capacity(kA)
Operation performance (Endurance)
ON
OFF
NS-100D
12.5, 16, 20, 25, 32, 40, 50, 63, 80, 100
3
4
950
690
0
18
18
1500
8500
NS-100N
25
25
NS-100H
70
70
NS-100L
150
150
NS-160D
16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160
25
25
1000
7000
NS-160N
36
36
NS-160H
70
70
NS-160L
150
150
NS-250D
160, 180, 200, 225, 250
25
25
1000
7000
NS-250N
36
36
NS-250H
70
70
NS-250L
150
150
NS-400D
200, 225, 250, 300, 315, 400
35
35
1000
4000
NS-400N
15
45
NS-400H
70
70
NS-400L
150
150
NS-630D
315, 350, 400, 500, 600, 630
35
35
1000
4000
NS-630N
45
45
NS-630H
70
70
NS-630L
150
150
Complaint
