Siemens SIRIUS 3RT2326-1AP00-4AA0 Power Contactor, AC-3, 32A, 15kW, 4-Pole, 230V AC, Screw Terminal, S0 Original Brand New

Siemens SIRIUS 3RT2326-1AP00-4AA0 Power Contactor | AC-3, 32A, 15kW, 4-Pole, 230V AC

The Siemens SIRIUS 3RT2326-1AP00-4AA0 is a high-performance 4-pole power contactor designed for reliable switching of AC-3 loads, particularly in motor control applications. Part of the renowned SIRIUS 3RT23 series, this contactor offers robust performance and flexibility for various industrial electrical systems.

Key Features:

• Powerful Performance: Rated for AC-3 applications, handling up to 32 Amps and 15 kW at 400 V, making it suitable for demanding motor control.
• 4-Pole Design: Provides versatile switching capabilities for various three-phase or special-purpose circuits.
• Optimal Control: Features a 230 V AC, 50 Hz operating mechanism for precise and consistent control.
• Integrated Auxiliary Contacts: Equipped with 1 NO (Normally Open) + 1 NC (Normally Closed) auxiliary contacts for feedback and control circuit integration.
• Secure Connections: Utilizes reliable screw terminals for main and auxiliary circuits, ensuring robust and easy wiring.
• Compact Size S0: Efficiently designed to save space in control cabinets without compromising on performance.
• Standards Compliant: Manufactured to meet rigorous international standards including IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1, ensuring safety and reliability.

Overview

The Siemens 3RT2326-1AP00-4AA0 is a vital component for industrial automation and motor control. Its robust construction and adherence to international standards ensure reliable operation and longevity in diverse applications.

Standard

This power contactor complies with:

• IEC 60947‑1
• IEC 60947‑4‑1
• IEC 60947‑5‑1 (for auxiliary switches)

Protection of Device Connections:

All connections of the Siemens 3RT2326-1AP00-4AA0 must be adequately protected against overload and short circuits.

• Main Connections: For details on protecting a free-standing contactor or device combinations (contactor with overload relay or circuit breaker), refer to the technical product data sheet and relevant configuration manuals.
• Auxiliary Connections: Information on auxiliary contact protection can be found in the technical product data sheet.
• Control Supply Voltage Connections: Protection strategies include selecting suitable power supplies with current-limiting functions and considering load characteristics (inrush current peaks, switch-on power, holding power). Refer to relevant standards for control panel configuration and the “Control panel tip – Selecting and dimensioning suitable power supplies quickly and reliably” for further recommendations.

Protection Against Overvoltage (Control Supply Voltage)

3RT23 contactors can be retrofitted with surge suppressors (RC elements, varistors, diodes, or diode assemblies) to dampen opening surges in the coil. These accessories must be ordered separately. Please note that damping increases break times and contact delay times.

Connection Methods:

• Main Circuit (3RT232): Features convenient screw terminals.
• Auxiliary and Control Circuit: Utilizes reliable screw terminals.

Electromagnetic Compatibility (EMC):

The 3RT2326-1AP00-4AA0 fulfills the requirements for environment category A. When used with frequency converters, specific configuration notes in the Equipment Manual must be observed.

Contact Reliability of Auxiliary Contacts:

For switching low voltages ($\le 110$ V) and currents ($\le 100$ mA), the integrated auxiliary contacts guarantee a high level of contact reliability. They are particularly suitable for solid-state circuits with currents $\ge 1$ mA at a voltage of 17 V and higher.

Motor Protection:

For comprehensive motor protection, the Siemens 3RT2326-1AP00-4AA0 can be combined with:

• 3RU2 thermal overload relays
• 3RB3 electronic overload relays These relays can be directly mounted onto the contactor.

Operating Mechanism Type:

This contactor features a conventional AC operating mechanism (230 V AC, 50 Hz). Control is managed via the control supply voltage connection A1 – A2.

Replacing Solenoid Coils and Spare Contacts:

Solenoid coil replacement is possible for the 3RT23 series. For 3RT233 contactors, contacts can also be replaced.

Fitting Auxiliary Contacts and Mounting Additional Auxiliary Switches:

The 3RT2326-1AP00-4AA0 basic unit includes two integrated auxiliary contacts (1 NO + 1 NC). All basic units can be expanded with additional auxiliary switches, adhering to permissible configurations. For detailed information, refer to the “Auxiliary switches, instantaneous → Overview.”

Accessories and Spare Parts:

A wide range of accessories and spare parts are available for SIRIUS 3RT2 contactors and SIRIUS 3RH2 contactor relays. Please refer to the dedicated accessory pages for ordering data.

Application

The Siemens 3RT2326-1AP00-4AA0 power contactor is ideal for:

• Four-pole switching of weak or non-inductive loads (AC-1)
• Disconnecting loads or power generation plants from the grid
• Transfer switching
• Switching motor-driven loads (AC-3)

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