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  • Address: 469 Xinsheng Road, Gaoxin District, Chengdu, China
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  • Email: sensor@esmachinery.com
  • Contact Person: Ivy

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The 421 Series magnetic latching relays are ideally suited for applications where power dissipation must be minimized. The relays can be operated with a short duration pulse. After contacts have transferred, no external holding power is required.


The magnetic latching feature of the 421 Series provides a memory capability, since the relays will not reset upon removal of power. 


The 421D and 421DD Series utilizes internal discrete silicon diodes for coil suppression and polarity reversal protection.

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Teledyne Electromechanical Relays 421D- A&S Automation Co., Ltd

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