Siemens 3RT2047-3NP30 Power Contactor SIRIUS 110A, 55kW, 175-280V AC/DC, S3 Size Original Brand New

Overview

The Siemens 3RT2047-3NP30 is a high-performance power contactor from the trusted SIRIUS Innovations series, engineered for reliable switching of electric motors and other industrial loads. This robust 3-pole contactor is rated for 110A and 55 kW at 400V (AC-3e/AC-3), making it ideal for demanding applications. Its versatile wide-range operating voltage of 175-280 V AC/DC simplifies global use and integration into diverse control systems.

Designed for efficiency and durability, this model features an integrated varistor to suppress voltage spikes and protect connected equipment. It includes a standard configuration of 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts for feedback and control functions. The main circuit utilizes reliable screw terminals, while the control and auxiliary circuits feature convenient spring-loaded terminals, enabling quick, tool-free wiring and ensuring a secure, vibration-proof connection.

Key Benefit

• High Performance: Handles large loads with a 110A rating and 55 kW at 400V, suitable for heavy-duty industrial machinery.
• Enhanced Protection: Integrated varistor provides surge suppression, protecting the contactor coil and downstream components from voltage transients.
• Versatile Power: Wide operating voltage range (175-280 V AC/DC) allows for flexible use in various power environments and applications.
• Simplified Installation: Spring-loaded terminals for control and auxiliary circuits offer fast, reliable, and maintenance-free wiring.
• Compact Design: Part of the space-saving S3 size range, optimizing panel space without compromising performance.
• Reliable Operation: High-quality construction from the Siemens SIRIUS Innovations series guarantees long service life and dependable performance in harsh industrial settings.

Technical Specifications & Function

• Product Number: 3RT2047-3NP30
• Product Type: Power Contactor
• IEC Utilization Category: AC-3e / AC-3
• Rated Operational Current (Ie): 110 A (at 400V)
• Rated Operational Power (Pe): 55 kW (at 400V)
• Number of Poles: 3
• Control Supply Voltage (Us): 175-280 V AC/DC, 50/60 Hz
• Coil Features: Integrated Varistor
• Auxiliary Contacts: 1 NO + 1 NC
• Terminal Type (Main Circuit): Screw Terminals
• Terminal Type (Control & Auxiliary Circuit): Spring-loaded Terminals
• Size: S3
• Series: SIRIUS Innovations
• Application: Ideal for switching motors, transformers, and resistive loads in industrial automation, HVAC, pumping systems, and machinery.

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