Siemens 3RT2336-1NE30 SIRIUS Contactor AC-1, 60A, 4-Pole, Integrated Varistor, 48-80V AC/DC Control, Screw Terminal, Size S2 Original Brand New

The Siemens 3RT2336-1NE30 SIRIUS Contactor is a high-performance, 4-pole device engineered for reliable switching of AC-1 (weak or non-inductive) loads up to 60 Amperes at 400 Volts (at 40 °C). This robust contactor is part of the SIRIUS 3RT23 series, known for its compact design and exceptional durability in industrial environments.

Key Features

• AC-1 Application: Specifically designed for switching non-inductive or weakly inductive loads, ideal for applications like resistive heaters, lighting, and distribution systems.
• High Current Rating: Capable of handling 60 Amperes for efficient power control.
• 4-Pole Design: Offers versatile switching capabilities for multi-phase systems or complex load configurations.
• Wide Control Voltage Range: Operates reliably with a universal control supply voltage of 48-80V AC/DC (50/60 Hz), providing flexibility in various control circuits.
• Integrated Varistor: Comes with an integrated varistor for effective surge suppression, protecting the coil and extending the contactor’s lifespan by damping opening surges.
• Auxiliary Contacts: Equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contact, offering convenient signaling and interlocking possibilities for your control systems.
• Secure Connection: Features robust screw terminals for secure and reliable electrical connections of main, auxiliary, and control circuits.
• Compact Size S2: Optimized for space-saving installation in control panels and enclosures.
• Standards Compliant: Meets international standards including IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), ensuring high quality and safety.

Overview

The Siemens 3RT2336-1NE30 is a vital component for industrial automation, offering reliable and safe operation for various AC-1 applications. Its robust construction and adherence to international standard make it a preferred choice for engineers and panel builder.

Standard

• IEC 60947-1
• IEC 60947-4-1
• IEC 60947-5-1 (auxiliary switches)

Protection Features

The contactor emphasizes comprehensive protection for device connection

• Short-circuit and Overload Protection of Main Connections: Refer to the technical product data sheet for specific guidance on protecting a free-standing contactor. For device combinations (contactor with overload relay or circuit breaker as motor feeder), consult the Digital Configuration Manual for load feeders.
• Short-circuit and Overload Protection of Auxiliary Connections: Detailed information is available in the technical product data sheet.
• Short-circuit and Overload Protection of Control Supply Voltage: Proper cable dimensioning and the selection of suitable, current-limiting power supplies are crucial, considering the contactor’s load characteristics (inrush current, switch-on, and holding power). Miniature circuit breakers are recommended for control circuits.
• Overvoltage Protection (Control Supply Voltage): The integrated varistor in the 3RT2336-1NE30 provides effective damping of opening surges in the coil. For other 3RT23 contactors supplied without coil circuits, surge suppressors (RC elements, varistors, diodes) can be ordered separately.

Connection Method

• Main Circuit: Screw terminals with box terminal, suitable for direct connection.
• Auxiliary and Control Circuit: Reliable screw terminals for secure connections.

Electromagnetic Compatibility (EMC):

The 3RT2336-1NE30 fulfills the requirements for environment category A, ensuring reliable operation in typical industrial settings. When used with frequency converters, refer to the configuration notes in the Equipment Manual.

Contact Reliability of Auxiliary Contact:

Designed for high contact reliability, the integrated 1 NO + 1 NC auxiliary contacts are ideal for switching low voltages (≤ 110 V) and currents (≤ 100 mA), making them suitable for solid-state circuits with currents ≥ 1 mA at 17 V and higher.

Motor Protection Compatibility:

For comprehensive motor protection, the 3RT2336-1NE30 contactor can be seamlessly combined with Siemens 3RU2 thermal overload relays or 3RB3 electronic overload relays.

Operating Mechanism:

This specific model features a wide-range solid-state operating mechanism, allowing for universal actuation with either AC or DC control voltage (48-80V AC/DC). Control is facilitated via the A1 – A2 control supply voltage connection.

Maintenance and Expandability:

• Solenoid Coil Replacement: The solenoid coil of the 3RT2336-1NE30 (3RT233 contactor) can be replaced.
• Auxiliary Contact Replacement: For 3RT233 contactors, the contacts can be replaced.
• Auxiliary Switch Expansion: The basic unit can be expanded with additional auxiliary switches, adhering to the permissible configuration.

Accessories and Spare Parts:

A wide range of accessories and spare parts are available for the SIRIUS 3RT2 contactors, including additional auxiliary switches, surge suppressors, and various connection component.

Application

The Siemens 3RT2336-1NE30 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 application

For other Siemens industrial control products, including special versions of 3RT23 contactors for AC-3 motor-driven loads, please visit Turll.com.