Turn On Voltage (Max):	7.8 VDC
Coil Resistance:	320 Ohms
Coil Power:	450 mW
Contact Material:	Silver Cadmium Oxide (AgCdO)
Operating Temperature:	-30°C ~ 80°C
Termination Style:	PC Pin
Mounting Type:	Through Hole
Features:	Insulation - Class F, Sealed - Fully
Release Time:	5ms
Operate Time:	10ms
Turn Off Voltage (Min):	0.6 VDC
Series:	T73
Switching Voltage:	120VAC, 28VDC - Max
Contact Rating (Current):	10A
Contact Form:	SPDT (1 Form C)
Coil Voltage:	12VDC
Coil Current:	37.5mA
Coil Type:	Non Latching
Relay Type:	General Purpose
Part Status:	Obsolete
Packaging:	Tube

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Power Relays, Over 2 Amps

The T73S5D15-12 is a power relay, commonly referred to as a four-pole, single-phase, single-throw, normally open relay (4PST-NO), designed to switch currents over 2 amperes. It is an ideal component for applications that require a reliable, cost-effective solution. The relay is rated for a maximum operating voltage of 250VAC.

Specifications

The T73S5D15-12 has a maximum switching power rating of 500VA, a maximum operating temperature range of -40° to +65° Celsius, with a coil resistance of 150 ohms. The insulation resistance is greater than 100M ohms at 500VDC, the contact resistance is less than 50m ohms, and the dielectric strength is greater than 2000VAC with a leakage current of less than 0.1mA. It is suitable for general purpose DC and AC applications such as motors, lights, power tools, and household appliances.

Application Field and Working Principle

The T73S5D15-12 is a single-pole, double-throw (SPDT) power relay that can be used to switch current between two separate loads. The common terminals, which are linked by the switching contacts, are identified as (COM) and (NC) for normally closed. When the relay is energized, the COM and NC contacts are open and the normally closed contact is closed. This switch operation is controlled by an electromagnet coil within the relay. When the coil is energized, an electromagnetic field is generated that attracts the armature and closes the contacts. When the coil is de-energized, the electromagnetic field dissipates and the armature returns to its original position, opening the contacts.The T73S5D15-12 can be used to provide a powerful switching solution for a wide range of applications. The relay can be used to switch motor starter circuits to control the speed of the motor, and can be used to switch lights, power tools, and household appliances. It can also be used in industrial automation, process control systems, and other industrial applications.The T73S5D15-12 is a reliable and low-cost alternative for medium and high power applications. It is designed to provide long-term operation at maximum voltage and perform under heavy loads. The relay features two independent, replaceable contacts, which are designed to handle a variety of current loads. The relay can also be used in high-vibration environments, as its design includes a silicone boots and dampers to protect against shock and vibration.

Conclusion

The T73S5D15-12 is a powerful and cost-effective switching solution for applications that require long-term reliability and performance under heavy loads. Its four-pole, single-phase, single-throw (4PST-NO) configuration provides a reliable switching solution for medium to high power applications such as motors, lights, power tools, and household appliances. The T73S5D15-12 can also be used in industrial automation, process control systems, and other industrial applications. The coil resistance is 150 ohms, the insulation resistance is greater than 100M ohms at 500VDC, and the dielectric strength is greater than 2000VAC with a leakage current of less than 0.1mA. The maximum operating temperature range of -40° to +65° Celsius allows for safe operation in a variety of environments.

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