Series 1240 / 1245 General Purpose Relay Mechanical Life: Rated Load: Contact Rating: Weight: 1,000,000 Operations (Approximately). 100,000 Operations (Approximately). 10 Amperes at 120 VAC non-Inductive. 2.5 oz. Nominal Volts Part Number Coil Res Ohms + / - 10% Voltage Range Power UL Recognition Required Recognized under DPDT 3PDT 1240-2C-24A 1240-2C-120A 1240-2C-240A 1240-3C-24A 1240-3C-120A 1240-3C-240A 24 VAC 120 VAC 240 VAC 55 1095 5000 +10%/-15% +10%/-15% +10%/-15% 4 VA 4 VA 4 VA 1245-2C-12D 1245-2C-24D 1225-2C-110D 1245-3C-12D 1245-3C-24D 1245-3C-110D 12 VDC 24 VDC 110 VDC 75 300 6500 +10%/-20% +10%/-20% +10%/-20% 2 Watts 2 Watts 2 Watts the Component Recognition Program of Underwriters Laboratories Inc. Wiring Diagrams DPDT 3PDT Double Pole - Double Throw Relays. Triple Pole, Double Throw Relays. Guardian part numbers look like this: 1240 - 2C - 120A The first number is the model number, the middle letter/number combination refers to Double Pole - Double Throw vs. Triple Pole Double Throw, and the third number is the power supply required for the Relay. Ordering Information Model Duty Cycle Power Supply 1240 = AC 1245 = DC 2C = DPDT 3C = 3PDT 24VAC 120VAC 240VAC 12VDC 24VDC 110VDC