What are the terminals on a 5 pin relay?

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. When the coil is activated, power will be switched from the normally closed pin to the normally open pin.

How a Bosch relay works?

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. When the relay is off, the common and Normally Closed contacts are connected. When the relay is engergized the common is switched over to the Normally Open contact.

What does 87 or 5 stand for in the automotive relay terminal labeling systems?

Numbers of a Relay Note that each pin is numbered. 85 and 86 are the coil pins while 30, 87, and 87a are the switch pins. 87 and 87a are the two contacts to which 30 will connect. If the coil is not activated, 30 will always be connected to 87a.

What is the size of Bosch 5 pin relay diagram?

Description : Relay Diagram 5 Pin – Facbooik throughout Bosch 5 Pin Relay Wiring Diagram, image size 623 X 502 px, and to view image details please click the image. Put up through admin from May, 2 2015. If you like this article you can bookmark or share it to your social media account, I thank you significantly because you have visited this site.

What is a Bosch style relay?

Bosch Relays Explained The “Bosch style” relay is also known as a 5-pin, 5-prong, SPDT, or changeover relay. As compared to a standard 4-pin SPST relay (with terminals 85, 86, 30, and 87), the 5-pin Bosch relay has an extra terminal 87a, which is powered only when the relay is not energized.

How do you energize a Bosch relay?

In many applications, the relay is energized via a simple ON/OFF control switch. When the control switch is open and the relay is not energized, only the N.C. terminal 87a of the Bosch relay has power.

Are Bosch Relays still made by Tyco?

Although the relay division at Bosch was acquired by Tyco Electronics in 2006, the 5-pin relay is still referred to as a Bosch-style relay. While the “Bosch” tag is reserved for 5-pin relay variants, some distributors may erroneously mark 4-pin relays as Bosch-type.