Siemens Industrial Controls 3RT2046-1AC20 Contactor Coil Contactors - 45kW AC-3 24V 1NO+1NC

The Siemens 3RT2046-1AC20 is a heavy-duty power contactor from the SIRIUS 3RT20 series, designed for reliable switching of motors and resistive loads in industrial applications. This contactor is rated for 45kW at AC-3 utilization category, making it suitable for controlling three-phase motors up to 60 horsepower at 460V.

Key Specifications:

• AC-3 rated power: 45kW at 400V
• Coil voltage: 24V AC (50/60Hz)
• Auxiliary contacts: 1 normally open (1NO) + 1 normally closed (1NC)
• Main pole configuration: 3-pole with screw terminals
• Rated operational current: 95A (AC-3)
• Frame size: S6 (NEMA Size 4 equivalent)
• Mechanical life: Up to 10 million operations
• Wide ambient temperature range: -25°C to +60°C

Features and Benefits:

• Compact design with modular construction for easy installation and maintenance
• Built-in surge suppression for coil protection
• Finger-safe terminals meeting international safety standards
• Front-mounted auxiliary contact block for simplified wiring
• Compatible with SIRIUS modular system accessories including overload relays and timing modules
• UL, CSA, and IEC certified for global applications

This contactor is ideal for motor starting, reversing, and switching applications in manufacturing, HVAC systems, conveyor systems, and other industrial control circuits. The 24V AC coil voltage provides compatibility with standard industrial control systems and PLCs.