1TL1-21

Illumination Type, Color:	--
Electrical Life:	--
Actuator Material:	Nickel Plated
Operating Temperature:	-65°C ~ 71°C
Features:	--
Ingress Protection:	Environment Proof
Bushing Thread:	15/32-32
Panel Cutout Dimensions:	Circular - 12.40mm Dia
Termination Style:	Screw Terminal
Mounting Type:	Panel Mount
Illumination Voltage (Nominal):	--
Series:	TL
Illumination:	Non-Illuminated
Actuator Length:	17.27mm
Actuator Type:	Standard Round
Voltage Rating - AC:	125V
Current Rating:	15A (AC)
Switch Function:	On-Off
Circuit:	SPST
Part Status:	Active
Packaging:	Bulk

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Toggle Switches

Toggle switches are simple manual devices designed to connect or disconnect an electrical circuit. Toggle switches come in a variety of sizes, styles, and ratings. The 1TL1-21 toggle switch is specifically designed for applications requiring an on/off switch with quick action and reliable performance.

1TL1-21 Application Field

1TL1-21 toggle switches are typically used in marine equipment, starter motors, off-road vehicles, commercial trucks and recreational vehicles. They are also useful in medical devices and other industrial applications. The 1TL1-21 switch has been designed to meet the challenging requirements of vibration, shock, and dust in these environments.

Working Principle

The 1TL1-21 switch is a relay-type switch consisting of two distinct contacts interconnected by an actuator arm. One contact is permanently connected to an external power source, and the other contact is connected to an electric circuit controlled by the switch. The actuator arm is connected to an external lever which is manipulated to switch the electric circuit on and off.When the lever is in the "off" position, the contacts hold the circuit closed, allowing current to flow from the power source to the circuit. When the lever is in the "on" position, the contacts force the circuit open, preventing current from reaching the circuit.

Safety Features

The 1TL1-21 switch incorporates several safety features to help prevent electrical shock and arcing. The contacts are encased in a protective housing which prevents accidental contact with the uninsulated parts. Additionally, the actuating lever is designed with an internal lock-out mechanism which prevents inadvertent switching of the circuit. To further enhance reliability and safety, the 1TL1-21 switch contains a built-in overload protection fuse which quickly disconnects the circuit if a sudden overload occurs. The internal components of the switch are also protected from short circuits and shocks by an internal strain relief device.

Switch Rating

The typical ratings for the 1TL1-21 switch are 5 amps at 250 volts AC, 20 amps at 12 volts DC, and 10 amps at 24 volts DC. In addition, the switch can be ordered with special ratings for specific applications.

Durability and Reliability

The 1TL1-21 switch is designed for high durability and reliability, with a switch life expectancy of more than 10,000 cycles. The contacts are designed to last for many thousands of operations, and the contact materials are resistant to heat and corrosion.

Conclusion

The 1TL1-21 toggle switch is an ideal choice for applications requiring an on/off switch with quick action and reliable performance. Its rugged design and durable construction make it ideal for harsh environments, and the built-in safety features help to prevent electrical shock and arcing. The switch is available in a variety of sizes, styles, and ratings, and can be ordered with special ratings for specific applications.

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