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A2K series automotive relays from CIT relay & switch

15th September 2022
Sheryl Miles
0

CIT Relay & Switch is the among first in the industry to offer an automotive relay with a blow-out magnet.

In the automotive relay world, 12VDC and 24VDC systems have been the norm for over 50 years. With the world trending toward Electric Vehicles (EV) there is a need for higher voltage DC switching.

As DC voltages increase, so does the chance of developing what is called a standing arc, where the contacts open, and the arc does not extinguish when the relay returns to the fully open position.

This condition is very damaging to the contacts and can cause welding of the contacts and even melting of the relay. To combat this, a permanent magnet has been placed next to the contacts to pull on the arc to help it extinguish sooner.

The A2K Series uses this blow-out magnet to help break the electric arc that is formed when the contacts of the relay are opening. With a large switching capacity up to 60amps, the A2K series also offers resistor and diode options for coil suppression along with PCB Pin or Quick Connect terminals and is available with or without a mounting bracket.

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