Schlage Electronics SPDT Magnetic Switch (0.3 amps @ 30 VDC) for Wood Door and Frame

No. The 679-05 concealed SPDT magnetic switch is built for wood doors and wood frames. Mounting a wood-application switch in hollow metal changes the magnetic gap behavior and it isn't the right part for that opening, so for a steel door and frame you want the hollow metal version of the switch instead.

The 679-05 switch is rated 0.3 amps at 30 VDC. That is a dry-contact signal rating, enough to report door status back to an access control panel or alarm input, and not enough to switch a lock, a strike, or any load drawing more than 0.3 amps. If you need to break power to a locking device, run the switch contact into a relay and let the relay carry the load.

The 679-05 carries a UL10C / CAN-ULC-S104 listing, which is the fire door test standard, so it can be installed in a fire rated wood opening without voiding the door's listing. Follow the door manufacturer's prep requirements for the concealed bore.

SPDT gives you both a normally open and a normally closed contact off the same switch, sharing one common. A two wire contact only gives you one state. With the 679-05 you can wire door-open to one input and door-closed to another, or feed a monitoring panel and a second device (door prop alarm, camera trigger, request-to-exit logic) from the same switch without adding a second contact to the door.

It's a concealed switch, so the magnet is bored into the door edge and the switch body into the frame, leaving nothing visible when the door is closed. That matters two ways: it can't be defeated or ripped off like a surface contact, and it has to be installed while you have access to drill the door and frame, which makes it easier on a new door than on one already hung and finished.

Yes, that's exactly the job. A door position switch detects open or closed status of the door relative to its frame and relays that status to a control panel, which then runs the prop alarm timer, the forced-entry alarm, or the door-status display. The switch itself only reports position; the timing and the alarm logic live in the panel. The 679-05 is the wood door and frame version of that part.

Both are SPDT switches, so both give you a normally open and a normally closed contact. The 679-05 is a concealed magnetic door position switch specified for wood doors and frames, carrying a UL10C / CAN-ULC-S104 listing. The RCI 960 Series is an SPDT switch for second position control, a different job: it adds a second switched position rather than monitoring the door against the frame. If you're monitoring door status on a wood opening, the 679-05 is the part; the RCI is for second position switching.

The switch needs its own conductors back to the panel. It's a dry contact rated 0.3 amps at 30 VDC that carries a signal, not lock power, so the pair runs to a monitoring input rather than to the power supply. Most installers pull one multi-conductor cable through the frame and use a dedicated pair for the door contact alongside the pairs feeding the locking device.