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

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

Earth leakage circuit breakers those have a voltage unbalance detection function in case of disconnection or abnormal connection of the neutral wire in a single-phase 3-wire circuit.

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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]		 Operation Rated sensitivity
current
[mA]		 Max. operating time
[sec]		 Single 3-phase neutral wire open phase protection characteristics Rated breaking capacity [kA]
Icu (AC100/200V)		 Outline dimensions [mm]
(WxHxD)		 Weight
[Kg]		 Details
Rated operating overvoltage Rated non-operating overvoltage Rated overvoltage operating time
50 PZE50-NFN 3P3E 1φ3W 15,20,30,40,50 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 10 75×130×68 0.8
100 PE125-NFN 3P3E 1φ3W 60,75,100 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 25 75×130×68 0.8
100/200/500 sedlectable
125 3P3E 1φ3W 125 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 25 75×130×68 0.8
100/200/500 sedlectable
100 ZNS125-SF 3P3E 1φ3W 15,20,30,40,50,60,75,100 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 50 75×130×68 0.95
100/200/500 sedlectable
Time delay tripping type 100/200/500 sedlectable 0.45
125 3P3E 1φ3W 125 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 50 75×130×68 0.95
100/200/500 sedlectable
Time delay tripping type 100/200/500 sedlectable 0.45
225 ZNE250-SF 3P3E 1φ3W 125,150,175,200,225 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 35 105×165×68 1.7
100/200/500 sedlectable
Time delay tripping type 100/200/500 sedlectable 0.45
250 3P3E 1φ3W 250 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 35 105×165×68 1.7
100/200/500 sedlectable
Time delay tripping type 100/200/500 sedlectable 0.45
225 ZNS250-SF 3P3E 1φ3W 125,150,175,200,225 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 85 105×165×68 1.7
100/200/500 sedlectable
Time delay tripping type 100/200/500 sedlectable 0.45
250 3P3E 1φ3W 250 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 85 105×165×68 1.7
100/200/500 sedlectable
Time delay tripping type 100/200/500 sedlectable 0.45
400 ZNE400-NF 3P2E 1φ3W 250,300,350,400 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 35 140×260×103 5.2
100/200/500 sedlectable
Time delay tripping type 100/200/500 sedlectable 0.45
400 ZNS400-NF 3P2E 1φ3W 250,300,350,400 100/200 Instantaneous tripping type 30 0.1 AC135V AC120V 1sec or less 85 140×260×103 5.2
100/200/500 sedlectable
Time delay tripping type 100/200/500 sedlectable 0.45