88901322

Series:	MBA3F
Part Status:	Active
Lead Free Status / RoHS Status:	--
Relay Type:	Solid State Relay
Moisture Sensitivity Level (MSL):	--
Function:	On-Delay
Circuit:	SPST-NO (1 Form A)
Delay Time:	0.5 Sec ~ 10 Sec
Contact Rating @ Voltage:	0.2A @ 3VDC
Voltage - Supply:	24VDC
Mounting Type:	Panel Mount
Termination Style:	Screw Terminal
Timing Adjustment Method:	Hand Dial
Timing Initiate Method:	Input Voltage

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Introduction

Time Delay Relays, also known as TDrs, are electronic devices designed to respond in a predetermined amount of time to a predetermined condition. They are used in many applications such as lighting circuits, HVAC systems and process control. This article will discuss the application field and working principle of the 88901322 Time Delay Relays (TDrs).

Application Fields of 88901322 Time Delay Relays (TDrs)

Time Delay Relays are used in many applications including lighting circuits, HVAC systems and process control applications.

• Lighting Circuits – TDrs are used in lighting circuits to regulate when a light should turn on and off. For example, when a switch is turned on, a TDrs will ensure the lights will turn on after a predetermined amount of time.
• HVAC Systems – TDrs are used to control when a fan should start operating, when the air conditioning system should be turned on and off and when a heater should be turned on and off.
• Process Control Applications – TDrs are also used in process control applications such as controlling the speed of a machine or controlling the sequence of steps in a process.

Working Principles of 88901322 Time Delay Relays (TDrs)

Time Delay Relays operate on an input such as a fixed time or an adjustable time delay. The output of the TDrs can be a normally open (NO) contact or a normally closed (NC) contact. When the input of the TDrs is triggered, the output contact will open or close after a predetermined amount of time. This delay is adjustable depending on what type of TDrs is used. For example, a fixed-time TDrs will have only one time setting, whereas an adjustable-time TDrs will allow the user to set the time delay.

Conclusion

Time Delay Relays (TDrs) are essential in many applications, allowing a response in a predetermined amount of time to a predetermined condition. The 88901322 Time Delay Relays are used in many applications including lighting circuits, HVAC systems and process control applications. Time Delay Relays operate on an input such as a fixed time or an adjustable time delay. The output of the TDrs can be a normally open (NO) contact or a normally closed (NC) contact depending on the type of TDrs used. Overall, TDrs are very important components for many applications and are essential for controlling when a light should turn on and off, HVAC system operations and process control applications.

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