What is the meaning of the time relay?
The general relay power will immediately close the normally closed power, disconnect the normally open break point, the delay relay is different from the power is turned on after the power will not immediately disconnect, and will wait for a set of your time And then disconnected.
Time relay normally open delay contact is the relay power after the contact on the power, to the delay time after the contact on the disconnect.
Time relay normally open delay contact: "normally open, get closed, loss of power to disconnect the contact."
Relay power and loss of power in two states, 1,2 terminal power to power, and vice versa for power loss. The delay is based on the starting point of the power or loss of power as the time zero start delay.
Relay contacts are normally open and normally closed two contacts, where the normally open and normally closed, refers to the natural state of the relay contact is broken, closed.
Now the two states and two kinds of contacts are combined, they get four contacts, as shown.
Turn left to turn right
3 - 4: This contact called it "normally open delay contact", from the beginning of the delay, the delay t seconds to close.
6 - 7: This contact called it "normally open delay contact", from the loss of electricity began to delay.
3 - 5: "normally closed delay contact", from the loss of electricity began to delay.
6 - 8: "normally closed delay contact", from the beginning of the delay.
Normally open delay contact: "normally open, get closed, loss of power delay contact."
Normally closed delay contact: "normally closed, power off, loss of power delay contact."
Time relay refers to a relay that produces a jumping change (or contact action) when the output circuit is subjected to a predetermined exact time after adding (or removing) the input action signal. 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.
