Nissan Standardized Relay Types Diagram - Normal Open, Closed & Mixed (EL-3)

This is page EL-3 of a Nissan electrical section service manual covering standardized relays. The upper portion explains that relays are divided into three types — normal open, normal closed, and mixed type — and presents a comparison table (figure SEL881H) showing current flow behavior for each relay type with switch SW 1 in the "OFF" and "ON" positions. For a normal open relay, current does not flow when SW 1 is off and flows when on; a normal closed relay behaves oppositely; and a mixed type relay has both behaviors on different contact circuits. The lower portion (figure SEL882H) illustrates the four types of standardized relay contact arrangements: 1M (1 Make), 2M (2 Make), 1T (1 Transfer), and 1M-1B (1 Make 1 Break), each with a schematic showing the coil and contact configuration. A reader can learn how to interpret relay schematic symbols in Nissan wiring diagrams, how each relay type routes current when energized or de-energized, and the naming convention for relay contact configurations. Fragments of text from an adjacent page are visible at the left margin but are largely illegible.