Contact Us
Contact Us Stock Check

What is reclosure?

This is usually a condition that can develop when using a Form B or normally closed reed relay.  The contacts are biased closed with a magnet. So with no power on the coil, the contacts remain closed.  When power is applied to the coil, its magnetic field is opposite the field of the magnet cancelling it out and opening the contacts.  If the coil is too strong, the contacts can reclose.  So a reclose voltage is added to a Form B relay that is usually 25% to 50% above the nominal voltage.  For a 5 volt relay with 50% safety factor the reclose would be 7.5 Volts.  This guarantees to the customer that applying up to 7.5 Volts the contacts will not reclose.

Posted in

SUBSCRIBE TO OUR NEWSLETTER

We Will Use The Email Address You Provide To Send You Marketing And Promotional Materials.

Tradeshows & Events

Common Mode Choke Design and Material Selection
Time: Now Thru Jan 19, 2023
Place: On-Demand
For More Details, Click Here.

electronica india 2022
Time: September 21.-23. 2022
Place: Bengaluru, India
Booth No.: EH15
For More Details, Click Here.

Standex- IEEE Long Island Power Electronics Symposium
Time: November 3rd 2022
Place: Hauppauge Radisson 110 Motor Parkway Hauppauge, Long Island, New York United States
Booth No.: Standex/Renco Electronics
For More Details, Click Here.

electronica 2022
Time: 15.-18. November
Place: Munich, Germany
Booth No.: 331
For More Details, Click Here.

Follow Us

Focused. Leadership

Video
Download Table
Products compare