Siemens 3RT2636-1AB03 Capacitor Contactor, S2 Size, 50 kVAr at 400V, 24V AC, 1 NO + 1 NC Original Brand New

Overview

The Siemens 3RT2636-1AB03 is a high-performance capacitor contactor from the SIRIUS 3RT2 series, specifically engineered for switching capacitive loads. This S2 size contactor is rated for 50 kVAr at 400V and features a 24V AC, 50 Hz control voltage. It is equipped with a 3-pole main circuit and includes one normally open (NO) and one normally closed (NC) auxiliary contact, providing flexibility for control and signaling. The contactor utilizes secure and reliable screw terminals for all connections.

Function

The 3RT2636-1AB03 is a specialized version of the 3RT2 contactor, designed to handle the unique challenges of switching capacitive loads (AC-6b). Its core function is to connect and disconnect capacitors in reactive current compensation systems, and it is also suitable for switching converters. The key to its performance lies in its integrated precharging resistors, which are engaged via leading auxiliary contacts. These resistors are closed before the main contacts, effectively limiting the inrush current peaks that are characteristic of capacitive loads. This crucial feature minimizes negative impacts on the power supply network, protecting both the contactor and the connected equipment from electrical stress.

Benefits

• Network Stability: By limiting peak charging currents, the contactor reduces electrical stress on the power supply network and associated equipment.
• Extended Service Life: The specialized design and precharging resistors reduce arcing and wear on the main contacts, leading to a longer operational lifespan for the contactor.
• Reliable Performance: The robust construction and adherence to international standards ensure consistent and dependable switching of capacitive loads.
• Versatile Application: Ideal for both choked and unchoked capacitors in reactive current compensation systems and for switching converters.
• Easy Integration: Screw terminals provide a straightforward and secure method for wiring, simplifying installation into control panels.
• Flexible Control: The included 1 NO + 1 NC auxiliary contacts allow for a wide range of control and signaling functions within the system.

Standards

The Siemens 3RT2636-1AB03 is designed and manufactured in compliance with the following international standards, ensuring quality, safety, and compatibility:

• IEC 60947-1
• IEC 60947-4-1
• IEC 60947-5-1
• IEC 60831-1
• IEC 61921

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