This earth leakage circuit breaker from ABB Haf’s System Pro M series has a total of 4 poles, 3 of which are protected (3p+n). In addition, the RCCB is equipped with overcurrent protection (RCBO) in four modules for protection against short-circuit currents, overload, ground fault currents, indirect contacts and additional protection against direct contacts (30mA version). The earth leakage circuit breaker has a rated voltage of 400V, a rated current of 20A, a breaking capacity of 10kA and a rated fault current of 30mA.
Specifications
Number of poles (total) : 4
Number of protected poles : 3
Rated voltage (V) : 400
Rated insulation voltage Ui (V) : 500
Rated impulse withstand voltage Uimp (kV) : 4
Rated current (A) : 20
Rated fault current (A) : 0.03
Leakage current type : A
Current limiting class : 3
Rated short-circuit breaking capacity according to EN 61009 (kA) : 6
Rated short-circuit breaking capacity according to IEC 60947-2 (kA) : 10
Rated short-circuit breaking capacity Icn according to EN 61009-1 (kA) : 6
Disconnection characteristic : Undelayed
Surge current capacity (kA) : 4
Voltage-type : AC
Frequency : 50/60 Hz
Release characteristic : B
Concurrently switching neutral conductor : Yes
With interlocking device : Yes
Over voltage category : 3
Pollution degree : 2
Ambient temperature during operating (°C) : -25 °C to 55 °C
Width in number of modular spacings : 4
Built-in depth (mm) : 73
Flush-mounted installation : No
Anti-nuisance tripping version : No
Degree of protection (IP) : IP2X
Connectable conductor cross section solid-core (mm²) : 25 mm² to 25 mm²
Connectable conductor cross section multi-wired (mm²) : 1 mm² to 25 mm²
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