That's exactly what the SR-1 does. It converts AC voltage to DC so a DC strike can be driven from an AC power supply, and it's rated for AC supplies up to 27 volts AC at 1 amp. Working range is 12-27VAC, 1.00 amp. If your supply exceeds 27VAC or the load draws more than an amp, the SR-1 isn't the right part.

An AC-powered strike buzzes because the coil is following the AC waveform. Feeding the strike DC instead stops it, and the SR-1 silicon rectifier is the piece that makes that conversion inline from a 12-27VAC, 1 amp supply. On DC, strikes click rather than buzz. Common fix on an office or apartment entry where the buzz is the complaint rather than the function.

No. The SR-1 is not recommended for the 4850. For that strike, use a power source suited to it rather than rectifying an AC supply through the SR-1.

No, and that is the distinction worth getting right. The buzz on an AC-powered strike is the AC waveform itself, and the fix is rectification to DC. The Trine SR-1 does exactly that, converting AC to DC so that DC strikes click only rather than buzz. The DynaLock 5212 is an open transformer with 120VAC in and 12VAC out at 2 amps, so its output is still AC and the strike will still buzz on it. A 5212 feeding an SR-1 gives you a stepped-down supply and DC at the strike; the 5212 by itself does not.

It measures 1 x 1/2 x 1 inch, so it fits inside most power supply cans, a junction box, or the head of a frame alongside the strike wiring. Small enough that it isn't a mounting problem on a retrofit where you're working in an existing box.

Any AC supply in the 12 to 27 volt range at 1 amp works ahead of an SR-1. The DynaLock 5212 Series open transformer is 120VAC to 12VAC at 2 amps, and the MS Sedco 12024 is an open frame 120V to 24V AC screw mount unit. Both land inside the SR-1 input window, so either can feed it.

24VAC sits inside the SR-1's 12 to 27 volt AC input range, so yes, provided the load stays at or under 1 amp. A 24V open frame unit like the MS Sedco 12024 is a typical source ahead of it. Over 27VAC or over an amp and you need a different approach.

They pair rather than replace each other. The MS Sedco 12024 is an open frame screw-mount converter that takes 120V down to 24V AC. The Trine SR-1 is a rectifier for AC power supplies up to 27 volt AC at 1 amp, so a 24VAC output falls inside its input range and it can convert that supply to DC downstream. Choose the 12024 alone when the device on the opening runs on AC; add the SR-1 when the device needs DC, keeping in mind the SR-1 carries 1 amp.

The Trine SR-1 is a 1 inch by 1/2 inch by 1 inch component that goes inline with an existing AC supply, so it takes very little room inside a power supply can or a hollow metal frame. The MS Sedco 12024 and the DynaLock 5212 are both open-style units, the 12024 being an open frame screw-mount converter and the 5212 an open transformer, which are meant to be fastened down inside an enclosure rather than tucked into a raceway. Where the enclosure is already populated, the SR-1 is the smaller addition; where you are building the supply from the line side, the open frame units are the starting point.

Yes, it's a commercial-grade access control accessory, used as an installation piece in electric strike and electrified door hardware circuits rather than a standalone device. It ships as a single 27V configuration, so there's nothing to select when ordering.