RB Series Features • • • Operates on 50Hz or 60Hz AC Voltage Will Operate Continuously Without Overheating Easy Single Screw Mounting AC Buzzer, Typical Applications Include Toasters, Ovens, Alarms, and Signaling Devices. D56 1.280 (32.51) Max 1.060 (26.92) Max .880 (22.35) Max 6−32 NC−2B Tap .312 (7.92) Min Deep AC OPERATED NTE Type No. RB−12 Nominal Voltage Resistance Ohms ±10% Nominal Coil Power Diag No. 12VAC 20 3.0VA D56 Electrical Specifications Coil Data RB−24 24VAC 80 3.0VA D56 RB−120 120VAC 2025 3.0VA D56 RB−240 240VAC 8000 3.0VA D56 Coil Voltages: AC Only: Up to 277 Volts/60Hz Operate Data Operating Voltage: ±15% of Nominal Sound Pressure Level: (Nominal Voltage) 93 dBA at 15 cm (Average) 74 dBA at 1.0 Meters (Average) Insulation Characteristics Dielectric Strength Between all Elements: 1000 VRMS, 60Hz Environmental Characteristics Operating Ambient: −45°C to +110°C Coil Temperature Rise: (25°C Ambient − Continuous Duty) 45°C Approx. @ 60Hz − Use at 50Hz will Cause Slight Increase in Coil Rise Mechanical Data Terminals: Pierced solder lugs .187” x .020” Weight Std: 31 gram approx. NTE Electronics, Inc. Voice (973) 748−5089 FAX (973) 748−6224 http://www.nteinc.com 115