Those are good pics, and the relays all seem to be put together correctly. Here are a few terms for you regarding relays:

- The coil core is the central metal post that the coil wire is wrapped around.
- The armature is the flat metal plate that is pulled against the coil core.
- The actuator is the arm that moves the switch blades of the relay.

The coil core and the armature must both be made of a ferromagnetic metal. The portion of the actuator that physically pushes on the switch blades cannot be electrically conductive, so it is usually made of plastic, phenolic, or fiberboard. The parts of the actuator that do not touch the switch blades may or may not be metal.

The actuator may be directly affixed to the armature, or it may be a completely separate piece that is latched into place by an outside force, and is tripped when the armature is pulled against the coil core. This is the type of relay shown in your pics.

In the last pic in post #9, the relay on the far left is latched, and the two relays to the right of it are tripped. The brass metal things with the plastic posts pushing on the switch blades are the actuators. In this pic, looking at the far left relay, in the narrow gap just below the metal actuator you can just see a small spring. That spring is attached to the armature for that relay. If you push that armature plate back by hand, the actuator will be released and will trip, putting the actuator in the same position as the relays next to it.

- TimMe