Need some help figuring this out
Normally 30 is the battery, not the load. This is because some relays are SPDT (One normally open, one normally closed, and 30 is the common of those two, IE the armature
It is important to get the coil polarity correct because some? many? most? have internal spike diodes, which will become a dead short if wired reverse polarity
This diagram is worded poorly, "coil control" should be labeled "coil positive" As you can switch (control) the coil either in the ground or plus end
Some relays do not have the NC contacts, so, are either missing the 87A or have 87A and 87 paralleled for more current, both being hooked to the NO contact
Normally 30 is the battery, not the load. This is because some relays are SPDT (One normally open, one normally closed, and 30 is the common of those two, IE the armature
It is important to get the coil polarity correct because some? many? most? have internal spike diodes, which will become a dead short if wired reverse polarity
This diagram is worded poorly, "coil control" should be labeled "coil positive" As you can switch (control) the coil either in the ground or plus end
Some relays do not have the NC contacts, so, are either missing the 87A or have 87A and 87 paralleled for more current, both being hooked to the NO contact