Functions and characteristics
|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 insulation voltage(V)||Ui||800|
|Rated impulse withstand voltage(kV)||Uimp||8|
|Rated operational voltage(V)||Ue||AC 50/60Hz,690|
|Breaking capacity levels||F N H|
|Breaking capacity (kA rms)
AC 50/60 Hz 380/415 V
|lcu||36, 50, 70|
|Service breaking capacity (kA rms)
AC 50/60 Hz 380/415 V
|lcs||36, 50, 70|
|Protection||Chart B-1 B-2|
|Indication and control auxiliaries|
|MX Shunt coil||■|
|MN under-voltage coil||■|
Overload protection: Thermal protection (Ir)
Thermal overload protection based on a bimetal strip providing an inverse time curve l2t, corresponding to a temperature rise limit. Above this limit, the deformation of the strip trips the circuit breaker operating mechanism.
overload protection has the following characteristics:
Anon-adjustable time delay.
Short-circuit protection: Magnetic protection (Im) Short-circuit protection with a fixed or adjustable pick-up lm that initiates instantaneous tripping if exceeded.
Protection of distribution system
Settings are made using the adjustment dials with fine adjustment possibilities.
Overload protection: long time protection (lr)
lnverse time protection against overloads with an adjustable current pick-up lr set using a dial and a non-adjustable time delay tr.
Short-circuit protection: Short-time protection with fixed time delay (lsd)
Protection with an adjustable pick-up lsd.Tripping takes place after a very short delay used to allow discrimination with the downstream device.
Short circuit instantaneous protection: (li)
lnstantaneous short-circuit protection with a fixed pick-up.
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