NS-250N silver ornamental NS electrical Molded case circuit breaker
Application
NS series moulded case circuit breaker is one of breaker which adopts international ad-vanced design, manufacture technology to develop. The rated insulating voltage is 750V, suit-able for AC 50Hz(60Hz),rated working voltage 690V or below, rated working current is 12.5A to1250A of circuit and used in distributing electric energy, and non-frequent breaking in the nor-mal conditions , protecting the current& equipment from overload&under voltage, circuit breakerwith rated frame current 400A or below,can be used in mousecage motor's non-frequent start,breaking during working, protecting motor from overload, short circuit&undervoltage,the prod-uct conforms to IEC60947-2 standard.
Main Technical Specifications
Type | Pole number | Rated insulating voltage(V) | Rated operating voltage(V) | Rated ultimate short circuit breaking capacity Icu (KA) at 380/415V | Rated servies short circuit breaking capacity Ics at 380/415V(KA) | Operation performance | Utilization category | |
ON | OFF | |||||||
NS-100N | 3, 4pole | 750 | 690 and below | 25 | 25 | 1500 | 8500 | A |
NS-100H | 70 | 70 | ||||||
NS-100L | 150 | 150 | ||||||
NS-160N | 36 | 36 | 1000 | 7000 | ||||
NS-160H | 70 | 70 | ||||||
NS-160L | 150 | 150 | ||||||
NS-250N | 36 | 36 | 1000 | 7000 | ||||
NS-250H | 70 | 70 | ||||||
NS-250L | 150 | 150 | ||||||
NS-400N | 45 | 45 | 1000 | 4000 | ||||
NS-400H | 70 | 70 | ||||||
NS-400L | 150 | 150 | ||||||
NS-630N | 45 | 45 | 1000 | 4000 | ||||
NS-630H | 70 | 70 | ||||||
NS-630L | 150 | 150 | ||||||
NS-1250N | 3 pole | 50 | 37.5 | 1000 | 4000 | |||
NS-1600N | 50 | 37.5 |
Note:1. The N-pole breaker has no protection which closing and opening with the other three poles. 2. The type of thermal magnetic for NS-400/630 has no four poles.
Trip units main technical parameter
Thermal magnetic release
Type | Rated currentIn(A) | Note |
NS-100 | 12.5,16,20,25,32,40,50,63,80,100 | Tadjustable (0.8~1In)M adjustable (5~10In) |
NS-160 | 16,20,25,32,40,50,63,80,100,125,160 | |
NS-250 | 160,180,200,225,250 | |
NS-400 | 315,350,400 | |
NS-630 | 400,500,630 | |
NS-1250 | 800,1000,1250 | Tadjustable (0.8~1In)M fixed |
NS-1600 | 1000,1250,1600 |
Electronic release
NS 22SE: protection of low-voltage distribution networks for NS-100\160\25
- Overload protection with adjustable threshold
- Short-circuit protection with adjustable threshold
- Load indication : light at 90% of Ir setting threshold;Flashing at 105% or more of Ir setting threshold
Type | Rated current In(A) | Note |
NS-100 | 40,100 | Ir=0.4~1×In(adjustable 48 setting) Tripping between 1.05~.3×Ir (IEC60947-2) (Long-time overload protection) Im=2-3-4-5-6-7-8-10×Ir (Short-circuit protection) |
NS-160 | 40,100,160 | |
NS-250 | 40,100,160,250 |
NS2 22ME: protection of motor for NS-100\160\250
- Overload protection with adjustable threshold, as defined by IEC60947-4 (2) tripping class 10
- Short-circuit protection with fixed threshold (13xIr)
- phase failure protection (tripping time delay between 3.5s-6s)
- Load indication : dark less than 105% of Ir setting threshold; Flashing at 105% or more of Ir setting threshold
Type | Rated current In(A) | Note |
NS-100 | 40,50,80,100 | Ir=0.6-0.63-0.67-0.71-0.75-0.80-0.85-0.90-0.95-1×In |
NS-160 | 40,50,80,100,150 | |
NS-250 | 40,50,80,100,150,220 |
NS 23SE: protection of low-voltage distribution networks for NS2-400\630
- Overload protection with adjustable threshold
- Short-circuit protection with adjustable threshold
- Load indication : light at 90% of Ir setting threshold;Flashing at 105% or more of Ir setting threshold
Type | Rated current In(A) | Note |
NS-400 | 400 | Ir=0.4~1×In(adjustable 48 setting) Tripping between 1.05~1.3×Ir (IEC60947-2) (Long-time overload protection) Im=2-3-4-5-6-7-8-10×Ir (Short-circuit protection) |
NS-630 | 630 |
NS 53UE: protection of low-voltage distribution networks for NS-400\630
- Overload protection with adjustable threshold, as defined by IEC60947-2
- Short-circuit protection with adjustable threshold
- Instantaneous short-circuit protection
- Earth fault protection with adjustable threshold
- Load indication : light at 90% of Ir setting threshold;Flashing more than Ir setting threshold
- Fault indication
- LEDs indicates the type of fault that caused tripping
- Overload (LT protection) or abnormal component temperature (>Ir);
- Short-circuit (ST or instantaneous protection)( >Im);
- Earth fault (if earth fault protection option is present)(Ig);
- Microprocessor malfunction (both (>Ir) and ( >Im) LEDs go on ,plus the (Ig) LEDs if earth fault protection option is present )
- Battery powered. Spare battery are supplied in an adapter box. When a fault occurs , the LED indicating the type of fault ,lights for about 10 minutes . The information is however stored in memory . The LED can be illuminated by pressing the test pushbutton. The LED automatically goes off and the memory is cleared when the circuit breaker is reset .
Type | Rated current In(A) | Note |
NS-400 | 400 | Ir=0.4~1×In(adjustable 48 setting) Tripping between 1.05~1.3×Ir (IEC60947-2) at 6×Ir Trip time: 1s, 2s, 4s, 8s, 16s(adjustable) (Long-time overload protection) Isd=1.5-2-3-4-5-6-7-8-10×Ir Trip time: 0s, 0.1s, 0.2s, 0.3s adjustable+I2t (Short-circuit short time delay protection) Ii=1.5-2-3-4-6-7-8-10-11×Ir (Instantaneous short-circuit protection) Ig=0.1-0.2-0.3-0.4-0.5-0.6-0.7-0.8-1×Ir Trip time: 0.1s, 0.2s, 0.3s, 0.4s adjustable+I2t (Earth fault protection) (If option is present) |
NS-630 | 630 |
NS 43ME: protection of motor for NS-400\630
- Overload protection with adjustable threshold, as defined by IEC60947-4 (2) tripping class 10A,10 and 20
- Short-circuit protection with adjustable threshold (6...13xIr)
- Phase failure protection (built-in electronic release: operates unbalanced single-phase currentat 40% and more than )(tripping time delay 4s¡À10%),as defined by IEC60947-4.1
- Load indication : Flashing more than Ir setting threshold
- Fault indication
- LEDs indicates the type of fault that caused tripping
- Overload (LT protection) or abnormal component temperature (>Ir);
- Short-circuit (ST or instantaneous protection)( >Im);
- Phase failure (right LED);
- Microprocessor malfunction ( (>Ir) ( >Im) and phase failure LEDs all go on )
- Battery powered. Spare battery are supplied in an adapter box. When a fault occurs ,the LEDindicating the type of fault ,lights for about 10 minutes . The information is however stored inmemory . The LED can be illuminated by pressing the test pushbutton. The LED automaticallygoes off and the memory is cleared when the circuit breaker is reset .
Type | Rated current In(A) | Note |
NS-400 | 400 | Ir=0.4~1×In(adjustable 48 setting) Trip degree: class 10A, 10,20(IEC60947-4) (Long-time overload protection) Im=6-7-8-9-10-11-12-13×Ir (Short-circuit protection) |
NS-630 | 630 |
Accessories
Accessories | Rated operating voltage | Consumption | For type | |
Pick-up | Seal-in | |||
Shunt release(MX) | 24V 100V 220/230V 380/400V |
<10VA | <5VA | NS-100~630 |
Under-voltagerelease(UN) | 220/230V 380/400V |
<10VA | <5VA |
Accessories | Rated operating voltage | Consumption | For type | |
AC12 | AC15 | |||
Auxiliary contact(OF) | 380/400V | 6 | 3 | NS-100~630 |
Alarm contact(AL) | 380/400V | 6 | 3 |
- Rotary handle
- Direct rotary handle
- Degree of protection:IP40
Function:
- suitability for isolation
- indication of three positions 0(off) I(on) and tripped
- press "push to trip" button, can trip-free
- visibility of and access to trip unit settings
- the circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied)
- Extended rotary handle
- Degree of protection:IP55
Function:
- Suitability for isolation
- Indication of three positions 0(off) I(on) and tripped
- Visibility of and access to trip unit settings when the door is open
- Door opening prevented when circuit breaker is on
- The circuit breaker can be locked in the off position by one to three padlocks , diameter 5 to 8mm(not supplied).Locking prevents opening of the switchboard door
Installation
Circuit breaker may be mounted vertically, horizontally or flat on their back without any derating of characteristics.
Fix
Mounting on backplate , mounting on rails
Connection
Front panel connection , black panel connection , plug-in connection
Outline and Installation Dimension
mm | C | C1 | C2 | C3 | G | G1 | G4 | G5 | H | H1 | H2 |
NS 100/160/250N/H/L | 29 | 76 | 54 | 108 | 62.5 | 125 | 70 | 140 | 80.5 | 161 | 94 |
NS 400/630N/H/L | 41.5 | 116 | 92.5 | 184 | 100 | 200 | 113.5 | 227 | 127.5 | 255 | 142.5 |
mm | H3 | H4 | H5 | H6 | H7 | K | K1 | K2 | L | L1 | L2 | P1 | P2 | P4 | P5 |
NS 100/160/250N/H/L | 188 | 160.5 | 321 | 178.5 | 357 | 17.5 | 35 | 70 | 52.5 | 105 | 140 | 81 | 86 | 111* | 83 |
NS 400/630N/H/L | 285 | 240 | 480 | 237 | 474 | 22.5 | 45 | 90 | 70 | 140 | 185 | 95.5 | 110 | 168 | 107 |
mm | P6 | R | R1 | R2 | R4 | R5 | φT | φT4 | (Ue) |
NS 100/160/250N/H/L | 88 | 14.5 | 29 | 54 | 108 | 143 | 6 | 22 | ≤32 |
NS 400/630N/H/L | 112 | 31.5 | 63 | 71.5 | 143 | 188 | 6 | 32 | ≤32 |