When to use 4 pole leakage switch?
1) TT system leakage switch should be 4 pole. 2) TN-S or TT system fire leakage switch should be 4 pole. 3) the end of the dual power switch switch leakage switch: should be selected 4 pole.

What is the meaning of the number of memory positions and the minimum interval?
The number of memory positions indicates the number of times that the operation is switched for a certain period of time. For example, IHP7 days (15721) memory number of 42, the minimum interval of 1 minute, that can be 7 days or 168 hours of programming settings, a total of 42 time to set the switch action. Where the minimum time between the two before and after the switching action can not be less than 1 minute.

SC6 Can I install pressure gauges, pressure switches?
Can be installed. For SC6 products, the pressure gauge is only available as an accessory and is not installed at the factory and is sold by Ashstead after sale to the site or the installation of the SM6 Cooperative Complete Works.

How do I enter the address of Concept in the Magelis programming software?
Concept in the address of 6, Magelis address of 5, can be reserved at both ends of the Concept address, the middle to remove a zero into five.

What is the soft starter torque control?
During the motor starting process, the soft starter detects the load torque and keeps the difference between the torque output of the motor and the load torque at a constant value, so that the acceleration curve is a straight line to smooth the acceleration and deceleration of the motor. This technology is my company patent.

Is there a soft starter for controlling single-phase AC motors?
Yes, model ATS01N1 ** FT, 0.37-1.5kW. Control of single-phase motor applications are not connected to the first phase 3 / L2 and 4 / T2, power after power should wait for more than 5 seconds before the time.

Why can not the frequency converter be used as a variable frequency power supply?
The entire circuit of the variable frequency power supply is composed of AC-DC-AC-filter and so on. Therefore, the output voltage and current waveform are pure sine wave, which is very close to the ideal AC power supply. Can output any grid voltage and frequency of any country in the world. The inverter is composed of alternating current and an alternating current (modulation wave) and other circuits, the inverter standard called the frequency converter. The output voltage of the waveform for the pulse square wave, and harmonic components, voltage and frequency at the same time in proportion to change, can not be adjusted separately, does not meet the requirements of AC power. In principle, can not do the use of power supply, generally only for three-phase asynchronous motor speed.

What is the difference between CM and CM2?
All for the voltage transformer cabinet. CM for neutral grounding system, equipped with three relative to the voltage transformer; CM2 for the neutral point of the system is not grounded, equipped with two relative phase voltage transformer.