Product data sheet 3RT2025-1BB40 CONTACTOR, AC-3, 7.5KW/400V, 1NO+1NC, DC 24V, 3-POLE, SZ S0 SCREW TERMINAL General technical data: product brand name SIRIUS Size of the contactor S0 Product extension auxiliary switch Yes function module for communication No Protection class IP / on the front IP20 Protection against electrical shock finger-safe Degree of pollution 3 Installation altitude / at a height over sea level / maximum m 2,000 Ambient temperature during storage C -55 +80 during operating C -25 +60 Shock resistance at rectangular impulse at DC 10g / 5 ms, 7,5g / 10 ms at sine pulse at DC 15g / 5 ms, 10g / 10 ms Impulse voltage resistance / rated value kV 6 Insulation voltage / rated value V 690 3RT2025-1BB40 subject to modifications Page 1/9 08/18/2014 Copyright Siemens AG 2014Maximum permissible voltage for protective separation / between coil V 400 and main contacts / in accordance with EN 60947-1 Mechanical operating cycles as operating time of the contactor / typical 10,000,000 of the contactor with added auxiliary switch block / typical 10,000,000 of the contactor with added electronics-compatible auxiliary 5,000,000 switch block / typical Main circuit: Number of NC contacts / for main contacts 0 Number of NO contacts / for main contacts 3 Connectable conductor cross-section / in main circuit at AC-1 at 40 C / minimum permissible m 10 at 60 C / minimum permissible m 10 Operating current at AC-1 / up to 690 V at 40 C ambient temperature / rated value A 40 at 60 C ambient temperature / rated value A 35 at AC-2 / at 400 V / rated value A 17 at AC-3 at 400 V / rated value A 17 at 500 V / rated value A 17 at 690 V / rated value A 13 at AC-4 / at 400 V / rated value A 15.5 Operational current / for 200000 operating cycles / at AC-4 at 400 V / rated value A 7.7 at 690 V / rated value A 7.7 Operating current with 1 current path / at DC-1 at 24 V / rated value A 35 at 110 V / rated value A 4.5 at 220 V / rated value A 1 at 440 V / rated value A 0.4 at 600 V / rated value A 0.25 with 2 current paths in series / at DC-1 at 24 V / rated value A 35 at 110 V / rated value A 35 at 220 V / rated value A 5 at 440 V / rated value A 1 at 600 V / rated value A 0.8 3RT2025-1BB40 subject to modifications Page 2/9 08/18/2014 Copyright Siemens AG 2014