CNS

Functions and characteristics

Type 800-1600 
CommectionsFixedfront-connections 
 Plug-infront-connections/rear connections 
Pole3,4 
Product appearance
Electrical characteristics as per IEC60947 and EN60947-2
Rated current (A) ln800,100,012,501,600 
Rated voltageUe(V)AC 50/60Hz 690V 
Rated insulation voltageUi(V)800 
Rated impulse voltageUimp (kV)8 
Utilization categoryNH 
Ultimate breaking capacity(A rms)AC220/240V80070 
 380/415V100070 
440V125065 
500/525V160040 
660/690V3042 
Operation performanceMechanical10000 
Electrical 5000 
ProtectionChart C-1 
Overload protectionlong-time delaylr (ln x….._) 
Short-circuit protectionshort-time delaylsd (ln x….._) 
 Instantaneousli (ln x….._) 
Idication and control auxiliaries  
Auxiliary switchY 
MS Shunt coillY 
MN under-voltage coilY 

Chart C-1 

Protection thresholds and delays are set using the adjustment dials.
Offer standard long time delay setting module.
Overload protection
True rms long-time protection.
Thermal memory: thermal image before and after tripping.
Short-circuit protection
Short-time(rms) and instantaneous protection.
Selection of l2t type(ON or OFF) for short-time delay.
Neutral protection
On 3-pole circuit breakers, neutral protection is not possible.
On 4-pole circuit breakers, neutral protection may be set using a three-position switch: neutral unprotected(4P 3d), neutral protection at 0.5lr(4P 3d + N/2) or neutral protection at lr(4P 4d).
Indictions
Overload indiction by alarm LED on the front;the LED goes on when the current
exceeds the long-time trip threshold. 
Test   
A mini test kit or a portable test kit may be connected on the test connesctor on the  
front to check circuit-breaker operation after installing the trip unit or accessories.
    
1.long-time threshold and tripping delay  
2.overload alarm (LED)  
3.short-time pick-up and tripping delay  
4.instantaneous pick-up  
5.fixing screw for long-time rating plug  
6.test connector   

Mounting on plate

CNSX/CNS/CNSV 100~250

CNSX/CNS/CNSV 400~630