TN2-L2-9V

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Signal relays, up to 2 Amps, are widely used in various industrial applications and are highly reliable solutions for controlling circuitry, providing performance, versatility and cost- effectiveness. The TN2-L2-9V signal relay is one such type of signal relays with up to 2 Amps rating and a series of innovative features. This article explores the TN2-L2-9V signal relay application field and working principle.

Application Field

The TN2-L2-9V signal relay offers a broad spectrum of applications, ranging from controlling industrial equipment, such as industrial machines, automotive equipment, pumps, fans, air conditioners and lighting to motor and solenoid drives. In addition, these relays can also be used in various types of power control systems, such as in robotics and Home Automation & Control (HAC). Additionally, with its two-channel operation feature, the TN2-L2-9V is perfectly suited for controlling high-voltage switching, such as LEDs, Lighting Dimmers, phase dimmers, load sharing systems and power factor correction, etc.

Working Principle

The TN2-L2-9V relay is the most reliable and efficient signal relay up to 2 Amps rating, with a direct-coupled, fully sealed and hermetically sealed construction. The two channels of the relay are individually controlled by a single control signal. In its basic form, the control signal is a voltage-driven signal, normally between 0V and 9V. However, the working voltage range can be tailored to 0V to 20V DC.

The two channels of the TN2-L2-9V relay are separately switched on and off by two switches in the signal circuit. The first switch corresponds to its first channel, while the second switch corresponds to the second channel. When the relay’s control signal is set to zero volts, it indicates no control over one of the channels. When that control signal is set to 9V, the corresponding switch is switched on and the corresponding channel is opened. Similarly, when the control signal is set to 0V, the corresponding switch is switched off and the corresponding channel is closed.

The TN2-L2-9V relay has an external temperature sensor, which is connected to each of the two channels of the relay for additional temperature protection. The sensors provide an accurate monitoring system to detect temperature irregularities and trip the relay, if necessary. This maximizes the reliability and protects the relay from overheating and potential damage.

In order to ensure safety, the TN2-L2-9V relay has two over-temperature protection (OTP) features. One is the over-temperature sensing and the other is the over-temperature limiting (OTL). The OTP system allows the relay to detect excessive temperature while monitoring the temperature of the relay’s elements, preventing them from overheating and thus, protecting the components and people in the proximity. The OTL system helps reduce the temperature of the relay’s components to safe levels in the event of an overheating situation.

The TN2-L2-9V relay features built-in surge protection, designed to limit the amount of current produced in the event of an external electrical surge or power surge, thus preventing component malfunction or damage. Lastly, the TN2-L2-9V relay also has a built-in noise filter which helps filter out high-frequency interference from various types of electrical and electronic equipment.

In conclusion, the TN2-L2-9V signal relay is one of the most reliable and efficient signal relays, with up to 2 Amps rating. It is perfectly suited for controlling high-voltage switching, and offers a range of innovative features, such as external temperature sensing, over-temperature protection, surge protection, and noise filtering. These features make the TN2-L2-9V a highly reliable solution for various industrial applications.

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