Siemens SIRIUS 3RT2336-1AV00 Contactor, AC-1, 60A, 4-Pole, 400V AC, S2 Size Original Brand New

Siemens SIRIUS 3RT2336-1AV00 Contactor: Robust 4-Pole AC-1 Switching

The Siemens SIRIUS 3RT2336-1AV00 is a high-performance 4-pole contactor designed for reliable switching of AC-1 (non-inductive or slightly inductive) loads. With a robust 60 A rating at 400 V / 40 °C and 400 V AC, 50 Hz control voltage, this S2 size contactor is an essential component for various industrial applications. It comes equipped with convenient screw terminals and integrated auxiliary contacts (1 NO + 1 NC) for enhanced control and feedback.

Key Features

• AC-1 Rated: Ideal for switching resistive loads, heating, or distribution circuits.
• High Current Capacity: Rated for 60 A at 400 V / 40 °C.
• 4-Pole Design: Enables multi-phase or multiple-circuit switching.
• 400 V AC Control: Standard 50 Hz AC coil for broad compatibility.
• Integrated Auxiliary Contacts: Features 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contact for versatile control schemes.
• Screw Terminals: Ensures secure and straightforward wiring.
• Compact S2 Size: Optimized for space-saving integration within control panels.
• Compliant with Standards: Meets IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), ensuring international compliance and safety.

Overview

The Siemens 3RT2336-1AV00 belongs to the SIRIUS 3RT23 series, renowned for its reliability and versatility in industrial control applications. This contactor is specifically engineered for four-pole switching of weak or non-inductive loads (AC-1), making it suitable for applications such as disconnecting loads or power generation plants from the grid, and transfer switching.

Standards Compliance:

This contactor adheres to rigorous international standards, including:

• IEC 60947‑1: General rules
• IEC 60947‑4‑1: Contactors and motor-starters
• IEC 60947‑5‑1: Control circuit devices and switching elements (for auxiliary switches)

Protection Features:

Proper protection of the device connections against short circuits, overloads, and overvoltages is crucial for safe and reliable operation.

• Short-circuit and overload protection of main connections: Refer to the technical product data sheet for information on protecting a free-standing contactor. For device combinations like contactors with overload relays or circuit breakers, consult the Digital or Configuration Manual for load feeders.
• Short-circuit and overload protection of auxiliary connections: Details on protecting auxiliary contacts are available in the technical product data sheet.
• Short-circuit and overload protection of control supply voltage or supply voltage connections: Adhering to relevant standards and regulations for control panel configuration is paramount. Possible protection includes using a suitable power supply with current-limiting functions, considering load characteristics (inrush current, switch-on power, holding power), and appropriate protection devices. Recommendations for miniature or circuit breakers are found in the “Control panel tip – Selecting and dimensioning suitable power supplies quickly and reliably” guide.
• Protection against overvoltage at the control supply voltage connection: 3RT23 contactors can be retrofitted with surge suppressors like RC elements, varistors, diodes, or diode assemblies (ordered separately) to dampen opening surges in the coil. Note that damping can increase break times and delay times for auxiliary contacts.

Connection Methods:

• Main Circuit: The 3RT233 and 3RT234 contactors feature screw terminals with box terminals. Direct connection to the connecting bar is possible with cable lugs for 3RT234 when the box terminal is removed.
• Auxiliary and Control Circuit: Both auxiliary and control circuits utilize convenient screw terminal.

Electromagnetic Compatibility (EMC):

The 3RT2336-1AV00 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 voltages $\le 110\text{V}$ and currents $\le 100\text{mA}$, the auxiliary contacts of SIRIUS 3RT23 contactors guarantee high contact reliability, making them ideal for solid-state circuits with currents $\ge 1\text{mA}$ at $17\text{V}$ and higher.

Motor Protection:

For protection against overload, the 3RT23 contactors can be fitted with 3RU2 thermal overload relays or 3RB3 electronic overload relays.

Operating Mechanism Types:

The 3RT23 contactors are available with conventional AC or DC operating mechanisms, or wide-range solid-state operating mechanisms with universal actuating voltage (AC or DC). Control is via the control supply voltage connection A1 – A2 with varying operating ranges.

Replacing Components:

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

Fitting Auxiliary Contacts and Mounting Additional Auxiliary Switches:

The 3RT2336-1AV00 (3RT232 to 3RT234 contactors) includes two integrated auxiliary contacts (1 NO + 1 NC) in its basic unit. All basic units can be expanded with additional auxiliary switches, adhering to permissible configurations. Detailed information on fitting auxiliary switches for 3RT23 contactors can be found under “Auxiliary switches, instantaneous → Overview.”

Accessories and Spare Parts:

A wide range of accessories and spare parts are available for 3RT231 to 3RT234 contactors. Please refer to “Accessories and spare parts for SIRIUS 3RT2 contactors and SIRIUS 3RH2 contactor relays” for more details.

Application

The Siemens 3RT2336-1AV00 contactor is ideally suited for:

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

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