This earth leakage circuit breaker from the mRB4 series from Eaton Moeller has a total of 4 poles, 3 of which are protected (3p+n). The ground fault circuit breaker has a double comfort terminal lift/window and a free choice comb rail position below and above. In addition, this earth leakage circuit breaker has limited impact resistance and plus current sensitivity. This type of the Eaton Moeller mRB4 ground fault circuit breakers protects DC fault currents at special non-flattened shapes. The rated voltage is 400V and the rated current is 25A. Also, the circuit breaker has a mounting depth of 70mm and a tripping characteristic C.
Specifications
Number of poles (total) : 4
Number of protected poles : 4
Rated voltage (V) : 400
Rated insulation voltage Ui (V) : 500
Rated impulse withstand voltage Uimp (kV) : 4
Rated current (A) : 25
Rated fault current (A) : 0.3
Leakage current type : A
Current limiting class : 3
Rated short-circuit breaking capacity according to EN 61009 (kA) : 4.5
Rated short-circuit breaking capacity according to IEC 60947-2 (kA) : 4.5
Rated short-circuit breaking capacity Icn according to EN 61009-1 (kA) : 4.5
Disconnection characteristic : Undelayed
Surge current capacity (kA) : 0.25
Voltage-type : AC
Frequency : 50 Hz
Release characteristic : C
Concurrently switching neutral conductor : Yes
With interlocking device : No
Over voltage category : 3
Pollution degree : 2
Ambient temperature during operating (°C) : -25 °C to 40 °C
Width in number of modular spacings : 4
Built-in depth (mm) : 70
Flush-mounted installation : No
Anti-nuisance tripping version : No
Degree of protection (IP) : IP20
Connectable conductor cross section solid-core (mm²) : 1 mm² to 25 mm²
Connectable conductor cross section multi-wired (mm²) : 1 mm² to 25 mm²
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