Siemens SIRIUS 3RT2 Contactor 3RT7037-1AC20, 65A, 30kW, 24V AC, Size S2, Screw Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT7037-1AC20 is a high-performance power contactor engineered for reliable switching and control of electric motors in demanding industrial environments. Part of the renowned SIRIUS modular system, this 3-pole contactor is rated for AC-3 duty at 65A for loads up to 30 kW at 400V. Its compact Size S2 design and robust screw terminals make it a versatile and dependable component for a wide range of applications, from pump and fan control to conveyor systems and general industrial machinery.

Key Features & Benefit

• High Performance: Rated for 65A at AC-3, providing reliable switching for motors up to 30 kW at 400V.
• Energy Efficient: The SIRIUS 3RT2 series is designed for low power consumption, reducing operational costs.
• Versatile Control: Features a 24 VAC, 50/60 Hz control coil, compatible with standard control circuits.
• Robust & Durable: Built with a rugged frame (Size S2) and high-quality materials to withstand harsh industrial conditions and ensure a long service life.
• Easy Installation: The screw terminals provide a secure and simple connection, saving time during wiring and maintenance.
• Compact Design: The space-saving Size S2 form factor allows for efficient panel layout and reduced cabinet size.
• Modular System: Part of the comprehensive SIRIUS family, it can be easily combined with a wide range of accessories such as auxiliary contacts, surge suppressors, and thermal overload relays for enhanced functionality.
• Safety & Reliability: Designed to meet international standards, guaranteeing safe and reliable operation.

Technical Specification

• Product Number: 3RT7037-1AC20
• Manufacturer: Siemens
• Series: SIRIUS 3RT2
• Type: Power Contactor
• Number of Poles: 3
• Operational Current (AC-3): 65 A
• Operational Power (AC-3): 30 kW at 400 V
• Control Supply Voltage: 24 V AC, 50/60 Hz
• Size: S2
• Connection Type: Screw terminals
• Mounting: Snap-on mounting on standard mounting rail
• Suitable for: AC motor switching, resistive loads, and general purpose switching

Function & Application

The Siemens 3RT7037-1AC20 functions as an electromagnetically operated switching device, used primarily for controlling the flow of power to electrical motors. When the 24V AC coil is energized, it closes the main power contacts, allowing current to flow to the motor. When the coil is de-energized, the contacts open, disconnecting the motor from the power supply.

This contactor is an essential component in a wide range of applications, including:

• HVAC systems (fans, blowers)
• Pump and compressor control
• Conveyor systems
• Packaging machinery
• Material handling equipment
• General industrial motor control circuits

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