PRODUCT DESCRIPTION
SIEMENS 3RT1044-1AF04 - Power Contactor
This SIEMENS SIRIUS 3RT1044-1AF04 is a 3-pole electromechanical power contactor engineered for switching inductive and resistive loads in industrial control applications. It integrates into motor control centers, automation panels, and machinery requiring reliable switching of AC motors up to 30 kW at 400V. The unit features a 110VAC control coil and includes one normally open and one normally closed auxiliary contact for feedback and interlocking circuits.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3RT10
- COMPONENT TYPE: 3-Pole Power Contactor
- ELECTRICAL SPECS:
- RATED OPERATIONAL CURRENT (AC-3): 65 A (at <= 400V)
- RATED OPERATIONAL CURRENT (AC-1): 80 A (at <= 400V, ambient temp <= 40°C)
- RATED OPERATIONAL POWER (AC-3): 30 kW (at 400V), 18.5 kW (at 230V), 37 kW (at 500/690V)
- CONTROL COIL VOLTAGE: 110 VAC, 50/60 Hz
- MAIN CONTACTS: 3 NO (Normally Open)
- AUXILIARY CONTACTS: 1 NO + 1 NC (Integrated)
- MECHANICAL/PHYSICAL:
- FRAME SIZE: S3 (Size 3)
- TERMINAL TYPE: Screw terminals
- INTERFACE/CONTROL:
- CONTROL TYPE: Electromechanical
- FEEDBACK: Integrated 1 NO + 1 NC auxiliary contacts
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminals), IP00 (Main circuit without terminal covers)
- MOUNTING STYLE: DIN rail (35mm) or screw mounting
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION: Motor control, resistive load switching, industrial automation panels, HVAC systems, pump control, conveyor systems.