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Time Delay Relays

Time delay relays are widely found in many automatic control systems, including C48TS104. It is a type of relay that automatically delays the operation of a connected load by a fixed period of time after the energizing of the relay coil. The delay can be provided by means of electromechanical, solid state, or programmable relays. The C48TS104 is a time delay relay with multiple functions for use in the field of automatic control.

Application Field of C48TS104

C48TS104 is suitable for the following application fields:

• Automatic streetlight control for intersection or highway
• Anti-burglar alarm system
• Automatic spraying equipment
• Bus stopping warning system
• Traffic signal control

Working Principle of C48TS104

The working principle of C48TS104 is based on two separate timer functions. The first is an instant on-delay type timer, and the second is a delayed turn-off timer. The mechanical parts of the relay are responsible for controlling the contacts, including a normally open contact and a normally closed contact. When the relay coil is energized, the normally open contact closes, allowing a current to flow from the input to the output. Meanwhile, the delayed turn-off timer is activated and the relay coil will stay energized as long as the timer is running. When the timer reaches the set value, the normally open contact opens, and the normally closed contact closes, cutting the current from the input to the output.

Conclusion

The C48TS104 is a type of time delay relay, and its application fields are mainly in the automation control of streetlights, anti-burglar alarm systems, spraying equipment, bus stopping warning systems and traffic signal control. Its internal mechanism consists of two timer functions, one for instant on-delay and another for delayed turn-off. The two timer functions are responsible for controlling two separate contacts on the relay, one normally open and other normally closed.

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