Deltana BBC20 Bell Button, Standard

The BBC20 bell button plate measures 2-3/8 x 1-5/8 inches. That is a small rectangular footprint, so it fits on narrow brick mould or a door casing where a large rosette-style doorbell plate would overhang. Measure the flat area you have before you commit, since the plate needs the full 2-3/8 inch dimension on its long axis.

Nine finishes on the BBC20: PVD Polished Brass, Polished Brass, Antique Brass, Oil Rubbed Bronze, Brushed Nickel, Antique Nickel, Polished Chrome, Brushed Chrome, and Paint Black. If the rest of the entry is Deltana in the same finish, the button matches it. The PVD Polished Brass is the one to specify on a coastal or high-sun exterior, since PVD is a deposited coating that resists tarnish where lacquered polished brass will eventually discolor.

Depends on what is coming off. The BBC20 plate is 2-3/8 x 1-5/8 inches, so it covers any opening smaller than that and leaves the paint line showing if the old button was a larger round or oval rosette. Measure the existing plate first. If the old one is bigger, a rosette-style unit like the Emtek 2402 on an oval rosette or the 2403 on a rectangular rosette is the way to hide the previous cutout.

They are the same class of part but not the same trim shape, so the mounting cutout and screw pattern differ. The Emtek 2400, 2401, 2402 and 2403 are supplied as a doorbell with plate and button in Regular, Rope, Oval and Rectangular rosettes respectively, while the Deltana BBC20 is a 2-3/8 inch by 1-5/8 inch solid brass button packed with matching screws. Replacing a BBC20 with an Emtek rosette unit means the old fastener holes will not line up, and a round rosette will not cover the footprint the BBC20 left behind.

No separate order needed. Each BBC20 ships in an individual poly bag with matching screws, meaning the screw heads are finished to match the button you picked. Sold by the each, so if you are doing a building with 40 units you order 40.

Size and format. The BBC20 is a standard rectangular solid brass button measuring 2-3/8 x 1-5/8 inches, sold as the button on its own. The Emtek 2400 American Classic is a doorbell with plate and button on a regular rosette, and Emtek also does the same doorbell on a rope rosette (2401), an oval rosette (2402), and a rectangular rosette (2403). Go Deltana when you want a compact, plain button on tight casing. Go Emtek when you want a decorative rosette to carry the look of the entry set.

Rated commercial. The BBC20 is a solid brass exterior door accessory, so it is appropriate for an office entry, a multi-family lobby, or a leasing office door as well as a house. For a property manager standardizing across a portfolio, the single 2-3/8 x 1-5/8 inch size and nine finishes let you run one button model across mixed hardware finishes on different buildings.

Just the button. The BBC20 is the pushbutton and its matching screws, packed one to a poly bag. It wires into an existing low voltage bell circuit, so the chime unit and transformer have to already be in place or be ordered separately.

The Emtek 2403 American Classic Brass Doorbell with Plate and Button uses a Rectangular rosette, making it the squared-off counterpart in the Emtek line. The Deltana BBC20 is also rectangular in footprint at 2-3/8 inches by 1-5/8 inches and is solid brass. A property manager standardizing several entries can pick either and keep one shape across the buildings, with the BBC20 available in nine finishes including Brushed Nickel, Antique Nickel and Brushed Chrome.

The Emtek 2401 American Designer Brass Doorbell with Plate and Button carries a Rope rosette, which gives a twisted-cord border around the button. The Deltana BBC20 bell button is a plain solid brass unit at 2-3/8 inches by 1-5/8 inches, offered in finishes including Polished Brass, Oil Rubbed Bronze, Antique Brass and Polished Chrome. If the entry set already carries rope detailing, the Emtek 2401 matches it; if the trim is plain, the BBC20 stays with it.