ACB　terminal connection

Horizontal connection type (standard: AE-SW up to 3200A except 2000-SWA), Vertical connection (VT) type (standard: 2000-SWA,4000-SWA -6300-SW) and Front conn... More Details >>

Where UVT power supplied from?

Do not take the control power supply of UVT ("Resettable type" and "Reset prevention type") from the secondary side of the breakers. If taking the control po... More Details >>

Low-instantaneous trip

When Power-Fuse (PF) is used as a high-voltage side protection device, coordination with MCCBs on the secondary side shall be achieved. Therefore, MCCB has l... More Details >>

ELCB medium-sensitivity

It is the Earth Leakage Circuit Breaker with rated residual operating current of higher than 30mA but not exceeding 1000mA. We provide the products of "100, ... More Details >>

How to use NV250-WEV

Transformers, wires and welded materials may be damaged if an abnormal energization occurs exceeding the energization cycles that are set for the inverter we... More Details >>

Inverse time delay operating characte...

It is a characteristic that operating time inversely become shorter as current increases. For Molded Case Circuit Breakers, protection characteristic meeting... More Details >>

CCC certification

All our products are compliant with CCC (China Compulsory Certification). More Details >>

Use in 40℃～60℃

Operating ambient temperature is set to - 10℃ to 40℃. ( However, its average over a period of 24h does not exceed 35℃.) In the case that the ambient temperat... More Details >>

MCCB and MCB as terms

MCCB stands for "Molded Case Circuit Breaker." This is defined in the IEC standard, IEC 60947-2 and in the UL standard, UL 489. MCB stands for "Miniature Ci... More Details >>

Type name of the operating handle

F-2SV is standard, F-2SVE is for emergency use. The difference is the color of the handle and its surroundings parts. More Details >>