G5LE-1 DC48

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Power Relays, Over 2 Amps: G5LE-1 DC48 Application Field and Working Principle

The G5LE-1 DC48 is one of the most robust mini power relays by Omron. It is part of the G5LE series, a range of SPDT-NO, RT, and Micro-cross types, featuring contact ratings up to 10A. This particular model has a contact rating of 2A at 250VAC, featuring the DC48 input range (7.5 to 36VDC).

Application Field

The G5LE-1 DC48 is highly suitable for a diverse set of applications, particularly those that require a dependable and reliable operation. Possible uses include powering AC or DC loads such as lights, motors, and numerous other household appliances.

It can be often seen, despite its relatively low cost, in applications requiring a long lifespan. This is especially due to its contact gap loosening prevention feature, which affects its operational life, as well as its “minimum sensitivity” feature, which ensures a prominent level of contact force.

Working Principle

The G5LE-1 DC48 is a single-pole dual-throw contact relay, meaning it contains two contacts that can be switched on or off. The two contacts are connected to different switches, which are electrically insulated from each other. When the power supply is energized, the electric current flows through the two switches, making them both close.

When the control voltage is applied to the relay coil, it magnetizes, which generates a magnetic field. This magnetic field attracts the plunger, which moves up and causes the relay contacts to become closed. When the power supply is cut, the plunger is released and the contacts go back to their original position, which is open. This is the basic principle of operation of the G5LE-1 DC48.

Design

The G5LE-1 DC48 is designed with a single-pole dual-throw architecture, where the two contacts are interconnected and can be switched on or off. It features an extended pre-travel level of 50μm prior to contact engagement, which ensures proper contact seating with the highest level of assurance. It also features a contact gap-loosening prevention feature for additional durability. This design promotes a long operational life and utmost dependability for the relay.

Specifications

The G5LE-1 DC48 features a contact rating of 2A at 250VAC and 7.5-36VDC input voltage. Its mechanical life rate is 13,000,000 operations, and its electrical life rate is 1,000,000 operations. Its time lag is ±20% of the statistical value, and its response time is less than or equal to 10ms. The operating power for this model is 87.6mW, and the max.switching frequency is 1,000 operations per minute.

Conclusion

The G5LE-1 DC48 is a powerful and cost-effective mini power relay. Its unique design and contact ratings make it suitable for a vast array of applications, such as powering AC or DC loads. Its contact gap loosening prevention feature, high durability, and extended pre-travel level ensure a long operating life and a dependable performance. For these reasons, the G5LE-1 DC48 is highly recommended for various applications.

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