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PRD-7AG0-240 Application Field and Working Principle

The PRD-7AG0-240 is a type of power relay ideal for higher current applications of more than 2 Amps. The relay has a 250V AC rating and a operating temperature range of - 40C to +85C. It is offered in two models, one with a single pole double throw (SPDT) contact configuration, and a second with a double pole single throw (DPST).

Uses of PRD-7AG0-240

The PRD-7AG0-240 is a suitable choice for motor control applications, and it can be used in a wide range of industrial and commercial applications including HVAC, office equipment, and other equipment requiring higher current loads. It is designed to provide reliable switching for systems subject to frequently changing loads. Additionally, the PRD-7AG0-240 can be used in applications that integrate safety devices, such as interlocks or sensors, due to its high contact stability.

Design and Construction

The PRD-7AG0-240 is manufactured with multiple layers of polyester resin-impregnated paper insulation between the coil and the contact terminals. This helps to ensure reliable operation over a wide range of temperatures and away from environmental elements that may cause oxidation. The contact box of the PRD-7AG0-240 is made of nylon, resulting in a lightweight yet durable housing that provides excellent protection against physical damage, while its heavy-duty terminal screws help to create a secure connection. For additional protection, the PRD-7AG0-240 is also rated with a shock resistance of 10G.

Operating Principle

The PRD-7AG0-240’s operating principle relies on a magnetic field produced by the AC coil. When current passes through the AC coil, the magnetic field causes the armature to move and close the contact points. This action causes an electrical current to flow through the system. Conversely, when the current passes through the coil in the opposite direction, the magnetic field reverses and releases the armature, opening the contact points and halting the current flow.

Conclusion

The PRD-7AG0-240 is a power relay specifically designed for applications requiring higher current loads of more than 2 Amps. It is designed with durable materials and multiple insulation layers to ensure reliable operation in a range of environmental conditions. Additionally, the PRD-7AG0-240 has a shock resistance of 10G, making it an ideal choice for applications that need to incorporate safety devices.

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