The CM-40-2-OB from Camden Door Controls is a 4 1/2" round push plate switch with 'WHEELCHAIR' symbol, blue, oil rub bronze finish (US10B/613). Camden Door Controls CM-40 Series all-active switches are heavy-duty, ADA-compliant door controls. The 4-1/2" round faceplates are stainless steel or solid brass, and the assembly is designed for easy installation. The CM-40 switches mount to standard 2 x 4 electrical boxes. The SPDT (and optional DPDT) switches are UL/CSA approved, and rated 15A at 30VDC.