Siemens 3RT2046-1AG20 Power Contactor SIRIUS 3RT2 95A, 45kW, 110V AC Coil, Size S3, Screw Terminal Original Brand New

Siemens 3RT2046-1AG20 SIRIUS Power Contactor | 95A, 45 kW, 110V AC, Size S3

The Siemens 3RT2046-1AG20 power contactor is a high-performance switching device from the universally applicable SIRIUS 3RT2 series. Designed for switching electric motors and other resistive loads in demanding industrial applications, this robust 3-pole contactor is rated for an operational current of 95 A (AC-3e/AC-3) and a power rating of 45 kW at 400 V.

It features a reliable 110 V AC control coil (50/60 Hz) for activation and includes a standard configuration of 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contact built into the unit. The contactor belongs to the Size S3 form factor and uses secure screw terminals for all connections, ensuring a strong, vibration-proof installation.

Technical Benefits & Features

• High Performance: Rated 95 A (AC-3e/AC-3) for motor loads up to 45 kW (400 V).
• Universal Application: Part of the compact and modular SIRIUS 3RT2 system, ensuring optimal coordination with other SIRIUS components like overload relays and circuit breakers.
• Global Standard Compliance: Meets international standards (IEC, UL/CSA) and is IE3/IE4 ready for high-efficiency motors.
• Reliable Control: Features a 110 V AC, 50/60 Hz coil, offering a wide operating voltage range.
• Integrated Auxiliary Contacts: Includes 1 NO + 1 NC auxiliary switch for control circuit feedback and interlocking.
• Secure Wiring: Robust screw terminal connection technology for main and auxiliary circuits.
• Durable Design: Mechanical service life of up to 10 million operating cycles typical.
• Space-Saving: Compact Size S3 design suitable for standard DIN rail mounting.

Applications

The 3RT2046-1AG20 is the ideal solution for reliable and safe control in numerous industrial and commercial environments, including:

• Starting and stopping standard and high-efficiency induction motors (IE3/IE4).
• Controlling resistive loads such as heating systems.
• Use within motor starter combinations, including direct-on-line (DOL) and reversing starters.
• Integration into complex control panels and machinery automation systems.

Compatibility and Accessories

The Siemens SIRIUS modular system allows for seamless integration. The 3RT2046-1AG20 contactor can be easily expanded with:

• Additional auxiliary switch blocks (side and front-mounted).
• SIRIUS 3RB3/3RU2 Overload Relays for motor protection.
• Varistors or RC elements for surge suppression.
• Infeed and connection modules for reduced wiring effort.

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