KT is a time relay. KA is an instantaneous relay. The What is the difference between the two? Circuits are often used together. In the physical is not the same electrical.
Time relay KT and instantaneous relay KA is the difference between the use. The role of the time relay in the control circuit is to determine the length of the circuit off time, instantaneous relay used in the control circuit to pass the middle of the signal, play the middle of the conversion and amplification.
Time relay input action signal, the output circuit to go through the specified time to produce a jumping or contact movements. Is an electrical component that is used to circuit on a lower voltage or a smaller current that is used to turn on or off a circuit with a higher voltage and a larger current.
KA is an intermediate relay. For passing an intermediate signal in the control circuit. The most common use is to increase the contact capacity, in the circuit control system, a contactor contacts need to control multiple contactors or other components, but in the line to add an intermediate relay. Although the intermediate relay contact capacity is not large, but also has a certain load capacity, while the drive required current is very small, so you can use the intermediate relay to expand the contact capacity. In the control circuit using the intermediate relay, through the intermediate relay to control other load, to achieve the purpose of expanding the control capacity.
KT is the timing controller, because the control current is relatively small, so use KA to amplify the current to achieve better control effect. It is also possible to use both of them at different voltages to achieve control effects.
Whether it is energized
The time relay is a relay with a delay function. KA indicates a relay that is energized.
Attached:
1 time relay (time relay) refers to when (by adding) the input of the action signal, the output circuit to go through the specified time to produce a jump (or contact action) of a relay. Is an electrical component that is used to circuit on a lower voltage or a smaller current that is used to turn on or off a circuit with a higher voltage and a larger current. At the same time, the time relay is also a use of electromagnetic principle or mechanical principle to achieve delay control of electrical control. It is a lot of type, with air damping type, electric type and electronic type. Referred to as KT.
The time relay is a relay with a delay function. KA indicates a relay that is energized.
The time relay is a relay with a delay function. KA indicates a relay that is energized.
KA is generally an intermediate relay. KM or K represents a contactor. KA is a special contactor (ie switch). It is 4 to pay off the angle of contact, the following is 4 pay normally open angle contact, when the coil power, the use of electromagnetic force to move the * iron pull down, so that the above 4 pay closed angle contact, Normally open angle contact closed. It is used to pass the intermediate signal in the control circuit. The structure and principle of the intermediate relay are basically the same as those of the AC contactor. The main difference from the contactor is that the main contact of the contactor can pass through the high current and the contact of the intermediate relay can only pass through the small current. Therefore, it can only be used in the control circuit. The KM contactor is used to turn on and off the load. It is combined with a thermal overload relay to protect the electrical equipment in operation. It is combined with the relay control circuit, remote control or interlocking related electrical equipment.
