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
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