Bosch Relay Normally Closed
These relays are 5 each for the 5 pack and are. Mgis bosch style relay box is designed for advanced high power wiring projects requiring both normally open no and normally closed nc circuitry.
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Normally closed relay 12v.
Bosch relay normally closed. Normally closed relay applications. Bosch relays usually have both an 87 and an 87a contact which are respectively no and nc. Skip to main content.
Here are just a few systems that require normally closed relays. When the relay is engergized the common is switched over to the normally open contact. Bosch relay identification can the amp rating of a bosch relay be identified by the part number.
Normally closed means that when the magnet isnt energized the switch contacts are closed and therefore the circuit is on. Online led store 1 pack 5 pin 12v bosch style waterproof relay kit harness socket 12 awg hot wires spdt 3040 amp 12 volt automotive marine relays for boats auto fan cars. Normally closed relays are used to keep ac unit blowers running even after the air compressor shuts off allowing the system to continue generating residual cool air without running the compressor.
Supco 90380 general purpose fan relay 13 a load current 24 v coil voltage normally open and normally closed contacts. Also known as the bosch relay the spdt has a common movable contact that moves between two fixed contacts termed normally open and normally closed. Normally open means the opposite.
When the relay isnt energized the switch is off. A cheapo bosch relay from the auto parts store will run you 7. Pre wired with 4 6 or 8 spdt bosch style relays rated 40a.
When the relay is off the common and normally closed contacts are connected. Relays can be normally closed normally open or both. I picked up some relays from a friend 0 332 018 150 0 332 208 150 dont know their ratings and searching the net has not helped.
87a not normally used normally closed 134 add to cart. 46 out of 5 stars 369.
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