Functions and characteristics
|Item No.||CNS 800-1600|
|Number of poles||3P, 4P|
with direct or extended rotary handle
|Plug-in||front connections/rear connections|
|Electrical characteristics as per IEC60947 and EN60947-2|
|Rated current(A) In||In||800, 1000, 1250, 1600|
|Rated insulation voltage(V)||Ui||800|
|Rated impulse withstand voltage(kV)||Uimp||8|
|Rated operational voltage(V)||Ue||AC 50/60Hz,690|
|Breaking capacity levels||N H|
|Utilization category||AC||220/240V 85 85|
|380/415V 50 70|
|440V 50 65|
|500/525V 40 50|
|660/690V 30 42|
|Protection Chart C-1|
|Overload protection||long-time delay||Ir (In x......)|
|Short-circuit protection||short-time delay||Isd (Ir x......)|
|Instantaneous||Ii (In x......)|
|Indication and control auxiliaries|
|MX Shunt coil||■|
|MN under-voltage coil||■|
Protection thresholds and delays are set using the adjustment dials.
Offer standard long time delay setting module.
True rms long-time protection.
Thermal memory: thermal image before and after tripping.
Short-time(rms) and instantaneous protection.
Selection of l't type(ON or OFF)for short-time delay.
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 neutralprotection at lr (4P 4d).
Overload indication by alarm LED on the front; the LED goes on when the current exceeds the long-time trip threshold.
A mini test kit or a portable test kit may be connected to the test connector on the front to check circuit-breaker operation after installing the trip unit or accessories.
CNS800 to 1600
Micrologic electronic control units
This question is easy to answer, mainly from two aspects of voltage and current. The following mainly analyzes the selection of plastic case circuit breakers for dis...
AC contactor is mainly composed of four parts: electromagnetic system, contact system, arc extinguishing device, insulating shell and accessories. In Basics for a Be...
Don't want to be fooled, do you know all about air switches, leakage protectors, and distribution boxes?
So why is it tripping? What should I do when it trips? First of all, we need to know that under normal circumstances, home tripping is divided into two types: air sw...