Switch disconnector

Switch disconnector is a switch compatible with IEC 60947-3 standard, and it has no overcurrent tripping element. Please use it as a switch with large switch... More Details >>

PAＬ（Pre-Alarm Module）

Pre-Alarm is a function which outputs an alarm if the load current exceeds setting current value. This is useful for securing continuous power supply and pre... More Details >>

Rated current and continuous current

The rated current is standard value for continuous current, short time delay current and instantaneous current. Continuous current is non-breaking current (c... More Details >>

Rated current sensitivity

Earth Leakage Circuit Breaker and Earth Leakage Relay operate at higher than 50% but not exceeding 100% of the rated residual operating current IΔn. The eart... 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 >>

Leakage characteristics

Type AC: Operates with AC Type A: Operates not only with AC but also with pulsating current <Reference> TYPE B: Operates with DC More Details >>

Calorific value of the circuit breaker

1. The internal resistance (per pole) is described in the catalog and technical notes. 2. Power consumption (W) = RI^2 x Poles = Resistance (Ω) x Load curre... More Details >>

How to connect to 2-pole breaker

(1) When "N" is marked on the breaker,connect the N phase wire as marked. (2) When "N" is not marked on the breaker, N phase wire can be connected to eith... More Details >>

Horizontal allowable distance when in...

Flatness of mounting plane: 1 mm or less.In addition, it is necessary to consider the horizontality of the panel. More Details >>

4-pole type in 100VAC or 110VAC

The rated operational voltages for them are 200 to 440VAC. If using them in 100VAC or 110VAC circuit, earth-leakage protection does not operate. More Details >>