Siemens 3RT1046-1BB44 Contactor 24VDC Coil 400V 95A W/ 3RH1921-1HA22 Auxiliary

The Siemens 3RT1046‑1BB44 is a heavy‑duty power contactor designed for high‑current motor control and industrial power switching applications. It features a 24 VDC control coil and high switching capacity up to 95 A at 400 VAC, and is supplied with a top‑mounted Siemens 3RH1921‑1HA22 auxiliary contact block to expand control and signaling capabilities in automation systems. Technical specifications Manufacturer: Siemens Product family: SIRIUS Contactor model: 3RT1046‑1BB44 Auxiliary contact block: 3RH1921‑1HA22 Device type: Power contactor with auxiliary contacts Main contact configuration: 3‑pole Rated operational voltage (Ue): 400 VAC Rated insulation voltage (Ui): 690 VAC Rated thermal current (Ith): 110 A Rated operational current (AC‑3): 95 A at 400 VAC Rated motor power (AC‑3, 400 VAC): 45 kW Rated operational current (AC‑1): 125 A Operating category: AC‑3 / AC‑1 Control coil voltage: 24 VDC Coil type: Electronic DC coil Control voltage tolerance: ±20 % Auxiliary contact configuration: 2 NO + 2 NC Auxiliary contact rating: 6 A at 230 VAC Auxiliary contact type: Snap‑on, front‑mounted Mechanical life: Approx. 10 million operations Electrical life: Approx. 1 million operations (AC‑3 at rated load) Mounting type: Panel mount Termination type: Screw terminals Main terminal conductor size: Up to 95 mm² Auxiliary terminal conductor size: Up to 2.5 mm² Operating frequency: 50/60 Hz Operating temperature range: -25 °C to +60 °C Degree of protection: IP20 (installed condition) Pollution degree: 3 Overvoltage category: III Shock and vibration resistance: Industrial rated Standards compliance: IEC 60947‑4‑1, IEC 60947‑5‑1 Certifications: CE, UL Listed, CSA Certified Typical applications: Motor starters, power switching, industrial machinery, control panels Country of manufacture: Germany Please review pictures carefully and let us know if you have any questions!