Siemens SIRIUS 3RT2325-1AM20 Contactor 4-Pole AC-1, 35A, 208V AC Coil, Screw Terminal Original Brand New

Siemens SIRIUS 3RT2325-1AM20 Contactor – Robust 4-Pole AC-1 Switching Solution

The Siemens 3RT2325-1AM20 is a high-performance SIRIUS 3RT23 series power contactor designed for reliable switching of non-inductive or weakly inductive loads (AC-1). This robust 4-pole contactor is engineered for demanding industrial applications, offering excellent durability and safety.

Overview

The 3RT2325-1AM20 is a 4-pole AC-1 contactor rated for 35 A at 400 V / 40 °C. It features a 208 V AC, 50/60 Hz operating mechanism and comes equipped with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact for flexible control circuit integration. Its compact S0 size and convenient screw terminals make it easy to install and maintain in control panels. Built to international standards, this Siemens contactor ensures dependable operation and system protection.

Key Features & Function

• AC-1 Application: Specifically designed for switching of weak or non-inductive loads, such as resistance furnaces, heaters, or lighting circuits.
• 4-Pole Design: Provides four main power poles for comprehensive circuit control.
• High Current Rating: Rated for 35 A at 400 V and 40 °C, ensuring sufficient capacity for various applications.
• Versatile Coil Voltage: Operates on 208 V AC at 50/60 Hz, suitable for common industrial power supplies.
• Integrated Auxiliary Contacts: Includes 1 NO (Normally Open) and 1 NC (Normally Closed) auxiliary contacts for feedback, interlocking, and control circuit functionality. These contacts offer high contact reliability, even at low voltages and currents.
• Screw Terminals: Provides secure and straightforward wiring connections for both main and auxiliary circuits.
• Compact Size S0: Space-saving design for efficient panel layout.
• Standards Compliance: Adheres to critical international standards including IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), ensuring global compatibility and safety.

Benefit

• Reliable Performance: Siemens’ renowned quality ensures long-term operational stability and reduced downtime.
• Enhanced Safety: Designed with comprehensive protection guidelines for short-circuit, overload, and overvoltage, contributing to a safer electrical system.
• Flexible Integration: Auxiliary contacts and various connection methods allow for seamless integration into complex control systems.
• Easy Installation: Screw terminals and compact design simplify mounting and wiring.
• Scalability: Compatible with Siemens’ SIRIUS modular system, allowing for easy expansion with additional auxiliary switches and motor protection devices (e.g., 3RU2 thermal or 3RB3 electronic overload relays).
• Durable Construction: Built to withstand demanding industrial environments.

Application

The Siemens 3RT2325-1AM20 contactor is ideally suited for:

• Four-pole switching of weak or non-inductive loads (AC-1)
• Disconnecting various loads or power generation plants from the grid
• Transfer switching applications

For specific motor-driven load applications (AC-3), special versions of the 3RT23 contactors are available.

Protection and Connection Guidelines:

• Short-circuit and overload protection of main connections: Refer to the technical product data sheet for free-standing contactors or Digital/Configuration Manuals for load feeder combinations.
• Short-circuit and overload protection of auxiliary connections: Consult the technical product data sheet.
• Short-circuit and overload protection of control supply voltage: Adhere to relevant standards for control panel configuration. Consider suitable power supplies with current-limiting functions and appropriate protection devices (e.g., miniature circuit breakers).
• Protection against overvoltage at control supply voltage connection: 3RT23 contactors can be retrofitted with surge suppressors (RC elements, varistors, diodes) which are ordered separately. Note that damping increases break and delay times.

Connection Methods:

• Main Circuit: Screw terminals.
• Auxiliary and Control Circuit: Screw terminals.

Compatibility and Accessories:

The 3RT2325-1AM20 is part of the Siemens SIRIUS modular system, allowing for seamless integration with a wide range of accessories and spare parts, including surge suppressors, additional auxiliary switches, and motor protection relays.

For more information on accessories and spare parts for SIRIUS 3RT2 contactors and SIRIUS 3RH2 contactor relays, please refer to our comprehensive listings.

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