Siemens SIRIUS 3RT2326-1AL20 Contactor 40A AC-1, 4-Pole, 230V AC Coil, S0 Size Original Brand New

Overview

The Siemens SIRIUS 3RT2326-1AL20 is a robust and reliable 4-pole contactor designed for AC-1 applications, offering high performance in switching non-inductive or weakly inductive loads up to 40 A at 400 V / 40 °C. This versatile contactor is equipped with a 230 V AC (50/60 Hz) coil and features integrated 1 NO + 1 NC auxiliary contacts, providing essential feedback and control capabilities. Its compact S0 size and convenient screw terminals make it an ideal choice for a wide range of industrial and commercial electrical systems. Built to IEC 60947 standards, the 3RT2326-1AL20 ensures dependable operation and seamless integration into new or existing control panels.

Functions & Features

4-Pole Switching: Designed for four-pole switching of AC-1 loads, perfect for applications requiring the control of non-inductive or weakly inductive circuits.

High Current Rating: Handles up to 40 A at 400 V / 40 °C, suitable for demanding power switching tasks.

230 V AC Coil: Standard 230 V AC (50/60 Hz) coil for easy integration with common control voltages.

Integrated Auxiliary Contacts: Comes with 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts for flexible control and signaling.

Screw Terminals: Ensures secure and straightforward wiring connections for main, auxiliary, and control circuits.

Compact S0 Size: Space-saving design for efficient panel layout.

Standards Compliance: Manufactured and tested to IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), guaranteeing safety and performance.

Motor Protection Compatibility: Seamlessly integrates with Siemens 3RU2 thermal overload relays or 3RB3 electronic overload relays for comprehensive motor protection (when applicable for AC-3 type applications, though this specific model is AC-1).

Overvoltage Protection Ready: Can be retrofitted with surge suppressors (RC elements, varistors, diodes) for enhanced coil protection.

Flexible Connection Methods: Offers screw terminals for main, auxiliary, and control circuits, with specific 3RT23 models supporting spring-loaded terminals for main circuits.

Electromagnetic Compatibility (EMC): Fulfills requirements for environment category A, ensuring reliable operation in various industrial settings.

High Contact Reliability: Auxiliary contacts are designed for high contact reliability, even at low voltages (≤ 110 V) and currents (≤ 100 mA), making them suitable for solid-state circuits.

Replaceable Coil: The solenoid coil can be replaced, extending the lifespan and serviceability of the contactor.

Expandable Auxiliary Switches: Basic units can be expanded with additional auxiliary switches for increased control functionality.

Benefit

Enhanced System Reliability: Adherence to international standards and robust construction ensures long-term, dependable operation.

Versatile Application: Ideal for switching weak or non-inductive loads, disconnecting power generation plants, and transfer switching applications.

Easy Integration: Standard coil voltage, screw terminals, and compact size facilitate quick and simple installation.

Cost-Effective Maintenance: Replaceable coil reduces maintenance costs and downtime.

Improved Safety: Designed with comprehensive protection considerations for short-circuit, overload, and overvoltage, contributing to a safer electrical system.

Optimized Space Utilization: S0 size allows for more compact control panel designs.

Future-Proof: Compatibility with various accessories and overload relays allows for system expansion and adaptation.

Application

• Switching resistive loads (e.g., heating elements, lighting)
• Controlling non-inductive or weakly inductive loads
• Disconnecting loads or power generation plants from the grid
• Transfer switching applications
• General industrial control circuits
• Building automation systems