Micro Relay 4 Pin Diagram

Look for relay diagrams or a relay schematic that is printed on the side of the relay to determine it.

Micro relay 4 pin diagram.

4 pin high capacity normally open mini relays stock code description type protection wiring diagram 6646b p141270x 12v 70a diac 1 form a 30 87 9 5mm american 87 30 86 85 30 86 85 87 5 pin changeover mini relays stock code description type protection layout wiring diagram 6608b p2512r 12v 30 20a resistor e 1 form c. You will notice that on the type b layout pins 86 and 30 are swapped over compared with the type a layout. 85 and 86 are the coil pins while 30 87 and 87a are the contact pins. 4 pin relay 4 pin relays use 2 pins 85 86 to control the coil and 2 pins 30 87 which switch power on a single circuit.

When a relay contact is closed there is a closed contact when the relay is not energized. The difference between a 4 and 5 pin relay is that a 4 pin relay is used to control a single circuit whereas a 5 pin relay switches power between two circuits. In this video i show you how to wire a micro 12 volt automotive style relay. Normally open or normally closed types.

Looking at the diagram we see the pinout of a typical 12v relay. 87 and 87a are the two contacts to which 30 will connect. Here is a picture gallery about relay 4 pin wiring diagram complete with the description of the image please find the image you need. The iso defines this type of relay as 1 inch 2 5 cm by 1 inch 2 5 cm by 0 5 inches 25 4 mm by 25 4 mm by 12 7 mm.

Relay diagrams pirate4x4. The automotive iso mini relays we have been looking at above are typically available in two types of pin layout designated type a and type b layouts. Here we look at relay switch pin diagram and the different kinds of relay switches. Note that each pin is numbered.

Micro relay https goo gl mswg6s see a complete list of parts products tool. If the coil is not activated 30 will always be connected to 87a. When a relay contact is open the relay is not energized. Ehdis car truck relay socket harness kit 4 pin 4 pre wired 12v 40 amp spst bosch style automotive auto switches starters set pack of 2 4 5 out of 5 stars 41 11 69 11.

4x4 and off road forum inside relay 4 pin wiring diagram image size 640 x 480 px and to view image details please click the image. Determine that the relay is an iso micro type. These layouts are shown on the two 5 pin relays below pin 87a not present on 4 pin relays. Numbers of a relay.

4 and 5 pin designs spst spdt are used in both styles of automotive relays.