Time relay symbol

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Interpretation: Time relay is an automatic switching device that realizes delay control by using electromagnetic principle or mechanical principle. It is generally divided into two types: power-on delay and power-off delay. Although there are only two types, the graphical symbols of the time relay are easy to be disturbed when drawing and identifying the electrical schematic. In particular, the time- delay contacts of the time relay are generally undeterminable in use. Let Xiaobian solve this problem for you.

1. Time Relay Symbol - Introduction

Time relay is an automatic switching device that realizes delay control by electromagnetic principle or mechanical principle. It is used on a circuit with lower voltage or lower current to turn on or cut off higher voltage. Electrical components of circuits with larger currents. When the input action signal is added (or removed), its output circuit must undergo a specified accurate time to produce a jump change (or contact action). At the same time, it has many types, including air damping type, electric type and electronic type.

2. Time relay symbol - text symbol

Text symbol:

3. Time relay symbol - graphic symbol

Coil general symbol:

Graphical symbol for power-on delay:

Graphic symbol for power-down delay:

4. Time relay symbol - electrical symbol

Normally open symbol:

Normally closed symbol:

Time-closed normally open contact

Time-opening normally closed contact

Delayed recovery of closed normally closed contacts

Time-opened normally open contact

The time relay is mainly used to reflect the automatic control of the time interval. Its electrical symbol can also be expressed as shown below.

The introduction of the symbol of the time relay is over here. Pro, have you all remembered? If you don’t remember, just read it a few times. Here are a few articles that Xiaobian has to offer you.