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Single phase 3-wire circuit breakers with neutral phase open protection and earth leakage alarm

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Single phase 3-wire circuit breakers with neutral phase open protection and earth leakage alarm

The circuit breakers that have a voltage unbalance detection function in case of disconnection or abnormal connection of the neutral wire in a single-phase 3-wire circuit and a leakage current detection function in case of earth leakage.

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Ratings and specifications

Frame A size
A		 Types Number of poles / Elements Phase and wires Rated current [A] Rated operational voltage [AC V] Single 3-phase neutral wire open phase protection characteristics Rated breaking capacity [kA]
Icu (AC100/200V)		 Earth leakage alarm specifications Earth leakage alarm
output contact configuration		 Outline dimensions [mm]
(WxHxD)		 Weight
[Kg]		 Details
Rated operating overvoltage Rated non-operating overvoltage Rated overvoltage operating time Rated sensitivity current [mA] Max. operating time [sec]
100 NAE125-SF 3P3E 1φ3W 15,20,30,40,50,60,75,100 100/200 AC135V AC120V 1sec or less 35 30/100/500 selectable 0.1/0.45/1.0 selectable 1c 100×130×68 1.15
100/200/500 selectable
125 3P3E 1φ3W 125 100/200 AC135V AC120V 1sec or less 35 30/100/500 selectable 0.1/0.45/1.0 selectable 1c 100×130×68 1.15
100/200/500 selectable
100 NAS125-SF 3P3E 1φ3W 15,20,30,40,50,60,75,100 100/200 AC135V AC120V 1sec or less 50 30/100/500 selectable 0.1/0.45/1.0 selectable 1c 100×130×68 1.15
100/200/500 selectable
125 3P3E 1φ3W 125 100/200 AC135V AC120V 1sec or less 50 30/100/500 selectable 0.1/0.45/1.0 selectable 1c 100×130×68 1.15
100/200/500 selectable
225 NAE250-SF 3P3E 1φ3W 125,150,175,200,225 100/200 AC135V AC120V 1sec or less 35 30/100/500 selectable 0.1/0.45/1.0 selectable 1c 105×165×68 1.8
100/200/500 selectable
250 3P3E 1φ3W 250 100/200 AC135V AC120V 1sec or less 35 30/100/500 selectable 0.1/0.45/1.0 selectable 1c 105×165×68 1.8
100/200/500 selectable
225 NAS250-SF 3P3E 1φ3W 125,150,175,200,225 100/200 AC135V AC120V 1sec or less 35 30/100/500 selectable 0.1/0.45/1.0 selectable 1c 105×165×68 1.8
100/200/500 selectable
250 3P3E 1φ3W 250 100/200 AC135V AC120V 1sec or less 35 30/100/500 selectable 0.1/0.45/1.0 selectable 1c 105×165×68 1.8
100/200/500 selectable