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

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Single phase 3-wire circuit breakers with neutral phase open protectionカ

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.
This product prevents damage to the connected equipment due to overvoltage.

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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)		 Outline dimensions [mm]
(WxHxD)		 Weight
[Kg]		 Details
Rated operating overvoltage Rated non-operating overvoltage Rated overvoltage operating time
50 PE50-NFN 3P3E 1φ3W 15,20,30,40,50 100/200 AC135V AC120V 1sec or less 10 75×130×68 0.8
100 PE125-NFN 3P3E 1φ3W 60,75,100 100/200 AC135V AC120V 1sec or less 25 75×130×68 0.8
125 3P3E 1φ3W 125 100/200 AC135V AC120V 1sec or less 25 75×130×68 0.8
100 NS125-SF 3P3E 1φ3W 15,20,30,40,50,60,75,100 100/200 AC135V AC120V 1sec or less 50 75×130×68 0.95
125 3P3E 1φ3W 125 100/200 AC135V AC120V 1sec or less 50 75×130×68 0.95
225 NE250-SF 3P3E 1φ3W 125,150,175,200,225 100/200 AC135V AC120V 1sec or less 35 105×165×68 1.6
250 3P3E 1φ3W 250 100/200 AC135V AC120V 1sec or less 35 105×165×68 1.6
225 NS250-SF 3P3E 1φ3W 125,150,175,200,225 100/200 AC135V AC120V 1sec or less 85 105×165×68 1.6
250 3P3E 1φ3W 250 100/200 AC135V AC120V 1sec or less 85 105×165×68 1.6
400 NE400-NF 3P2E 1φ3W 250,300,350,400 100/200 AC135V AC120V 1sec or less 35 140×260×103 4.8
400 NS400-NF 3P2E 1φ3W 250,300,350,400 100/200 AC135V AC120V 1sec or less 85 140×260×103 4.8
600 NS630-NF 3P2E 1φ3W 500,600 100/200 AC135V AC120V 1sec or less 85 210×273×103 10.0
630 3P2E 1φ3W 630 100/200 AC135V AC120V 1sec or less 85 210×273×103 10.0
800 NS800-NF 3P2E 1φ3W 700,800 100/200 AC135V AC120V 1sec or less 85 210×273×103 11.0