Siemens 3RT1955-7A SIRIUS Arc Chute for 3RT1055 Contactor, Size S6 Original Brand New

Overview

The Siemens 3RT1955-7A Arc Chute is a critical replacement component designed specifically for the SIRIUS 3RT1055 Power Contactor, which is a Size S6 device (up to 75 kW / 400V). As a genuine Siemens spare part, the 3RT1955-7A ensures optimal performance and safety by effectively suppressing and extinguishing the electric arc that forms when the contactor switches an electrical load. Regular replacement of the arc chute is vital for extending the operational life and reliability of your contactor in demanding industrial control applications.

Key Features / Function

• Effective Arc Suppression: Designed to quickly cool, divide, and extinguish the powerful electric arc generated during contact separation, protecting the main contacts from excessive wear and damage.
• Perfect Compatibility: Precision-engineered as a direct, genuine replacement for the Siemens 3RT1055 series of 3-pole contactors, ensuring a perfect fit and seamless function.
• Contactor Size S6: Matches the specifications for the high-power S6 contactor frame size (typically rated for 150A, 75kW at 400V AC-3).
• 3-Pole Design: Replacement component for the 3 main power poles of the contactor.
• High-Quality Construction: Manufactured by Siemens under the SIRIUS industrial controls standard, guaranteeing durability and safety compliance.

Benefit

• Maximized Contactor Lifespan: By protecting the main contacts from arc damage, the arc chute significantly extends the service life of your expensive 3RT1055 contactor.
• Enhanced Operational Safety: A functional arc chute prevents the arc from escaping or persisting, reducing the risk of fire, equipment damage, and downtime.
• Reliable Performance: Restores the contactor’s original switching capability and reliability, crucial for motor control and industrial load switching applications.
• Easy Maintenance: Designed for straightforward installation as a field-replaceable spare part, minimizing maintenance time.

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