F7-Series Knfin Residual Current Device

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Shanghai
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TT OR LC
Min Order Qty:
100 pc
Supply Capability:
10000 pc/month

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Product Description:

 F7-Series Knfin Residual Current Device 

1.Application

Residual Current DeviceRCD

Standard: IEC1008,VDE0664,CEE27,BS4293

2.TDS

*Type:Electro-magnetic type

*Residual current characteristic:AC

*Pole No: 1P+N

*Tripping curve: B,C

*Rated short-circuit capacity:6kA

*Rated current(A):6,10,16,20,25,32,40

*Rated voltage:240V AC 50/60Hz

*Rated residual operating current(mA):30

*Tripping duration:Instantaneous≤0.1s

*Electro-mechanical endurance:4000 cycles

*Connection terminal:Pillar terminal with clamp

*Connection capacity: flexible conductor 10mm²  Rigid Conductor 16mm²

*Installation:On symmetrical DIN rail 35mm  Pannel mounting  Wiring diagiam .

F7-Series Knfin Residual Current Device

3.Pictures


3.Our Servicce

Cooperate with us, we will be honored and you will benefit from:

1.- Your client satisfied on the right schedule and quality;

2.- Your can get good reputation from your market and obtain more orders;

3.- Our professional service before and after sale;

4.- The reasonable price;        9A CE AC contactor

5.- Any questions from you are welcome and will be replied in 24 hours.


 4.Package & Shipping

 

  • Package : polybag and carton box  export standard package or designed by yourself 

  • Delivery date :within 3 weeks after get payment              9A CE AC contactor

  • Delivery  mode: Ocean shipping, Air transport, Express delivery/( Choose by the customer)

  • Payment terms: T/T in advance, L/C at sight. 


 

Q 1.How about your experience?

A.We have our own professional factory and R&D department & more than 10 years producing experience

Q 2. What's your advantage ? 

A. We have complete set of machines such as ,injection molding machines and punchers,

with these,we can make by ourselves from the inside parts to outside.

It greatly increases the efficiency and saves the cost.

Q 3. How's the delivery time ? 

A. usually it will take about 15-30 days for production

Q 4. Tell me the standard of package? 

A. For inner box and master carton are made as per international standards,

and we can make special design for you if need.

Also if necessary, will be packed in pallet to avoid any damage.

Q 5.Will be any warranty for your item ? 

A. We offer one year warranty for our products. Please feel assured.

Q 6.Do you accept OEM business ? 

We accept OEM authorization.



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Q:Why should the thermal relay be used with the AC contactor
triggering the normally closed contact of the thermal relay to disconnect the AC contactor coil circuit, and the AC contactor After the coil is lost, the main contact is reset and the motor is stopped
Q:How does the contactor interlock?
the electrical interlock is deactivated Therefore, it is necessary to use a mechanical interlocking contactor for demanding locations
Q:Electrical performance test technical status related to the connector
The collected data is Fourier transformed, and the time domain signal is converted into a frequency domain signal to calculate the phase of the voltage and current, and the power factor is obtained
Q:What about the release device and the contactor and the circuit breaker?
Circuit breakers can be used to distribute power, not frequently start the asynchronous motor, the power lines and motors and other protection, when they have a serious overload or short circuit
Q:How is the DC contactor connected to the circuit
the contactor is divided into two parts is a coil through the control switch and power in parallel, the other is the contact switch and load in series
Q:What is the noise-free function of traditional contactors?
there will be noise. While the permanent magnet AC contactor is held by the permanent magnet force to maintain, so there will be no noise generated.
Q:How to get the relay time parameter
The literature refers to a relay time parameter computer detection method, which uses self-developed acquisition board, which is mainly composed of single-chip and its peripheral circuit
Q:What is the effect of the contactor coil parallel capacitor?
In the capacitor in series with a suitable resistor, you can damp the oscillation, reduce the over-voltage time, to achieve better results, which is resistance capacitive absorber.
Q:Contactor accessories have what roles?
arc extinguishing device, the general capacity of the larger AC contactor are equipped with arc extinguishing device, in order to quickly cut off the arc, from burning the main contact;
Q:Seeking Star Triangle to start the contactor on and off the order and process
when the press button SB1, the time relay coil KT and then contact the coil at the same time Power, KMY's moving contact closed

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