How is the electrical system of a relay tested?
If there is no power, the electrical system must be tested starting with the fuse then the relay. If power is present use the test light connected to battery power to check the ground circuit. if these tests check out, the accessory is bad and needs to be replaced. Some relay’s can differ from this configuration but follow the same principle.
Which is an example of an open relay?
Example 1. 4 pin (normally open) relay with the switch on the positive side of the control circuit. Example 2. 4 pin (normally open) relay with the switch on the negative side of the control circuit. Note: These circuits have been simplified to illustrate the function of a relay and therefore exclude fuse protection that would be required.
What are the different types of 4 pin relays?
There are 2 types of 4 pin relay available; normally open or normally closed. A normally open relay will switch power ON for a circuit when the coil is activated. A normally closed relay will switch power OFF for a circuit when the coil is activated.
When does a 5 pin relay switch off?
A normally closed relay will switch power OFF for a circuit when the coil is activated. 5 Pin Relay 5 pin relays provide 2 pins (85 & 86) to control the coil and 3 pins (30, 87 & 87A) which switch power between two circuits. They have both normally open and normally closed connection pins.
What kind of rating does a relay have?
Basic relays feature electrical ratings for both the coil and the internal switching contacts. The coil voltage rating is the voltage required for the coil to operate correctly. The switching circuit of the relay also features a voltage and ampere rating. This is the maximum rating of the switch contacts and should NOT be exceeded.
There are 2 types of 4 pin relay available; normally open or normally closed. A normally open relay will switch power ON for a circuit when the coil is activated. A normally closed relay will switch power OFF for a circuit when the coil is activated.
A normally closed relay will switch power OFF for a circuit when the coil is activated. 5 Pin Relay 5 pin relays provide 2 pins (85 & 86) to control the coil and 3 pins (30, 87 & 87A) which switch power between two circuits. They have both normally open and normally closed connection pins.
Example 1. 4 pin (normally open) relay with the switch on the positive side of the control circuit. Example 2. 4 pin (normally open) relay with the switch on the negative side of the control circuit. Note: These circuits have been simplified to illustrate the function of a relay and therefore exclude fuse protection that would be required.