Siemens 3TS Capacitor Duty Contactor

The Siemens 3TS Capacitor Duty Contactor is a specialized switch engineered for capacitor bank applications in power factor correction systems. With its innovative delatching auxiliary contact mechanism, it safely manages high inrush currents, extending equipment life and ensuring smooth, reliable operation.

Key Features at a Glance

• High Inrush Current Control – Limits sudden current surges during capacitor switching

• Integrated Damping Resistors – Smoothens energization process for capacitor banks

• Delatching Mechanism – Ensures auxiliary contacts disconnect automatically after main contact closure

• Enhanced Protection – Safeguards both capacitor banks and the contactor itself

• Compact & Flexible Design – Suitable for DIN rail or screw mounting

• Standard Compliance – Built as per IEC standards for reliable global use

• Safe De-energization – Effectively disconnects stored capacitor energy upon coil release

Why Choose This Product

Siemens has designed the 3TS capacitor duty contactor to handle one of the toughest challenges in power factor correction: inrush current peaks. With its smart delatching mechanism and resistor-based damping, this contactor not only protects critical assets but also ensures long-lasting, stable performance in demanding industrial environments.

Ideal For

• Low-voltage power factor correction systems

• Industrial capacitor bank switching

• Energy efficiency projects in manufacturing plants

• Electrical panels requiring surge-protected contactors

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FAQs

Q1: What makes the Siemens 3TS contactor suitable for capacitor banks?
It has a built-in damping resistor mechanism that limits inrush currents, protecting both the contactor and capacitor banks.

Q2: Can the Siemens 3TS contactor be DIN rail mounted?
Yes, it supports both DIN rail and screw mounting, offering flexible installation.

Q3: Does the Siemens 3TS comply with international standards?
Yes, it is manufactured according to IEC standards, ensuring global reliability and safety.