Understanding the DZB-217 Intermediate Relay
Understanding the DZB-217 Intermediate Relay
Are you curious about the DZB-217 intermediate relay? This article will delve into the details of this electrical component, providing you with a comprehensive understanding of its features, applications, and technical specifications.
Company Background
Shanghai Josef Electric and Technology Co., Ltd. is a professional company specializing in the marketing and technical services of high and low voltage electrical equipment, transmission and distribution electrical equipment, and industrial automation control electrical products.
Product Series
The DZB series includes various intermediate relays, such as DZB-200, DZB-210, DZB-213, DZB-214, DZB-217, and more. In this article, we will focus on the DZB-217 intermediate relay.
Applications
The DZB-217 intermediate relay is designed for various protection and automatic control devices. Its primary function is to increase the number and capacity of contact points in protection and control circuits.
Structure and Principle
The DZB-217 intermediate relay is a valve-type electromagnetic relay. The coil is mounted on an “U” shaped magnetic core, which has an active armature on top. On both sides of the magnetic core, there are two rows of contact springs.
| Component | Description |
|---|---|
| Coil | Mounted on the “U” shaped magnetic core, generates electromagnetic force when energized. |
| Magnetic Core | Consists of an “U” shaped magnetic core and two side columns, providing a magnetic path for the coil. |
| Armature | Active part that moves when the coil is energized, causing the relay to operate. |
| Contact Springs | Two rows of contact springs that make and break electrical connections when the armature moves. |
In the non-actuated state, the contact spring pushes the armature upwards, maintaining a certain gap between the armature and the magnetic core. When the electromagnetic torque exceeds the counter-torque, the armature is attracted towards the magnetic core. At this point, the armature pushes the contact spring, causing the normally closed contact to open and the normally open contact to close, completing the relay operation. When the electromagnetic torque decreases to a certain value, the counter-torque of the contact spring returns the armature and contacts to their initial position, ready for the next operation.
Technical Specifications
The DZB-217 intermediate relay features a double-iron core structure, allowing for the installation of coils on both side columns. This design enhances the relay’s performance and reliability.
Conclusion
The DZB-217 intermediate relay is a versatile and reliable electrical component suitable for various protection and control applications. By understanding its structure, principle, and technical specifications, you can make an informed decision when selecting the right relay for your project.
