5V DC Signal Relay, DPDT, 2A

Signal relay adopts copper coil and silver alloy contacts, strong conductivity and longer life span.

Features

• 2A contact switching capability.
• High sensitive type, coil power is 150mW/200 mW.
• Standard DIP construction terminal.
• Ultra – small type, gold – plated contacts.
• Suit for complete machine wave soldering and integral cleaning process.
• Main applications: Electric power protection, automation, communication.

Specification

Note: In order to maintain the initial performance parameters of the signal relay, please be careful not to drop it.

Dimension

Units: mm

Performance curves

Tips: Difference between signal relay and power relay

Signal relay is usually used for monitoring and protection. It is widely used in the secondary protection circuit of distribution high voltage cabinet. For example, If the transformer oil temperature is over 85 degrees and A normally open contact is closed on the temperature monitor indicator, making the contact string in signal relay coil back to the road, so there are signals leads to relay coil absorption and action and high voltage switch is off at the same time to remove the station transformer load, so as to protect the transformer. However, there are many kinds of signal relays, some of which are directly buzzing or flashing as alarm signals.
Power relay is a device that can produce step in one or more electrical output circuits when the input (or excitation) satisfies some specified conditions. It can be used in the neutral point directly grounded system as the direction element of zero sequence current protection.