ROFU 9720 SPST Narrow Stile Plate, 1-1/4" Red Metallic Flush Head, 3A/240V

That's exactly what it's built for. The 9720 uses the narrow plate, 4-3/4 x 1-5/8 x 1/4 inches, so it mounts on narrow stile aluminum storefront doors and jambs where the standard 4-3/4 x 3 inch plate would overhang. The head itself is a 1-1/4 inch red flush button.

Both are offered, and you pick based on the device you're wiring into. NO-Momentary closes the circuit only while the button is pressed, which is what most maglock release and door controller REX inputs expect. NC-Momentary breaks the circuit while pressed, used where the maglock power runs through the button so pressing it drops power directly. Either mode comes in Satin Aluminum (US28) or Dark Anodized Bronze (US40).

The contacts are rated 3A at 240V, SPST. That covers the coil or supply current of typical single maglocks and strikes run through the button, and it is well beyond a dry REX signal input to a controller. Anything drawing more than 3A needs to be switched through a relay instead.

The ROFU 9720 is a request-to-exit push button with a 1-1/4 inch red metallic flush head and an SPST contact rated 3A at 240V, mounted behind a 1/4 inch thick tamper-resistant aluminum cover plate and ordered as either NO-momentary or NC-momentary. The Detex PB-2138-3 is a push button control from the Detex 2100 series that includes a shroud over the button and Form C terminals, so the same device gives you both a normally open and a normally closed contact off one common terminal rather than being selected as one or the other at time of order. Choose based on whether your access control panel needs a single dedicated contact or a changeover contact, and whether the opening calls for a flush head or a shrouded button that resists accidental actuation.

The cover plate is 1/4 inch thick aluminum with the button head metal surrounded, and it ships with two snake eyes security screws plus the wrench to drive them. That combination stops a standard driver from removing the plate. It is catalogued as a commercial product.

No. Every 9720 REX switch is supplied with two snake eyes security screws and the matching wrench. You will still need a back box or mounting cutout in the stile or wall, which is not included.

Two: US28 satin aluminum and US40 dark anodized bronze. Those are the two standard anodized storefront finishes, so the plate lines up with clear anodized and dark bronze aluminum entrances. Finish has to be specified when ordering.

Yes, that is its purpose. It is a REX switch in the 9700 Series, wired to the request-to-exit input of an access control panel or inline with a maglock. The momentary action means it signals only while pressed, so the door relocks as soon as the button is released.

The ROFU 9720 presents a 1-1/4 inch red metallic flush head, which is easy to hit deliberately and just as easy to hit by accident in a corridor with cart or luggage traffic. Where that is a concern, the Detex PB-2138-3 from the 2100 series is furnished with a shroud around the button, which recesses the actuator so it has to be reached into rather than brushed. The trade-off is at the wiring: the 9720 gives you one SPST contact rated 3A at 240V selected as NO-momentary or NC-momentary, while the Detex unit provides Form C terminals. Match whichever contact arrangement your controller input expects.

The ROFU 9720 is the easier one to standardize on across mixed openings because the same 9700 series REX switch is offered on both a standard plate at 4-3/4 by 3 by 1/4 inches and a narrow plate at 4-3/4 by 1-5/8 by 1/4 inches, in satin aluminum US28 or dark anodized bronze US40, and in NO-momentary or NC-momentary, so wide hollow metal frames and narrow aluminum stiles can carry the same button with the same look. All versions use UL recognized components and are rated 3A at 240V. The Detex PB-2138-3 is a 2100 series push button control with a shroud and Form C terminals, which is the choice where a single changeover contact or a guarded actuator is the governing requirement rather than plate uniformity.

They are built with UL Recognized Components. That is a component-level recognition, not a listing of the finished assembly, so if your spec calls for a UL listed release device confirm that distinction with the AHJ.