Siemens SIRIUS 3RT7035-1AH00 Contactor 40A, 18.5kW, 400V AC-3 Motor Control with 48V AC Coil, Size S2, Screw Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT7035-1AH00 is a high-performance, 3-pole contactor designed for reliable switching of electric motors. This robust component is part of the renowned SIRIUS series, known for its compact design, exceptional durability, and high switching capacity. Rated for an AC-3 current of 40A and a power output of up to 18.5kW at 400V, it is the ideal choice for demanding industrial applications requiring precise and safe motor control. The contactor features a 48V AC, 50 Hz control voltage coil and convenient screw terminals for secure and straightforward wiring. Its compact Size S2 frame allows for efficient use of space within control cabinets.

Key Features & Benefit

• High Performance: Handles up to 40A AC-3 current and 18.5kW (at 400V), making it suitable for a wide range of motor applications.
• Reliable Switching: Engineered for long-term, dependable operation, reducing maintenance and downtime.
• Compact Design: The Size S2 frame saves valuable space in control panels and electrical enclosures.
• Easy Installation: Features robust screw terminals for a fast, secure, and reliable connection.
• Versatile Control: Operates with a standard 48V AC, 50 Hz control voltage, integrating seamlessly into common control circuits.
• Durable & Robust: Part of the Siemens SIRIUS family, ensuring high quality, a long service life, and resistance to environmental stress.
• Enhanced Safety: Provides reliable switching and protection for motor circuits, preventing overloads and damage.

Function

The Siemens 3RT7035-1AH00 functions as an electromagnetic switch that controls the flow of electrical power to a motor. When the 48V 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, cutting off power to the motor. This functionality is critical for:

• Starting and stopping electric motors
• Reversing motor direction (when used in conjunction with a second contactor)
• Switching resistive and inductive loads
• Acting as a remote switch for high-power devices

Technical Specification

• Product Name: SIRIUS Contactor
• Product Number: 3RT7035-1AH00
• Product Type: Contactor, 3-pole
• Operational Current (AC-3): 40 A (at 400 V)
• Rated Power (AC-3): 18.5 kW (at 400 V)
• Control Supply Voltage: 48 V AC, 50 Hz
• Size: S2
• Connection Type: Screw Terminal
• Dimensions (W x H x D): [Provide dimensions if available from data sheet]
• Mounting: DIN Rail

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