Siemens SIRIUS 3RT2336-1AP00-4AA0 Power Contactor 51A, 22kW, 4-Pole, 230V AC, S2 Size Original Brand New

Siemens SIRIUS 3RT2336-1AP00-4AA0 Power Contactor – High Performance Industrial Switching

The Siemens SIRIUS 3RT2336-1AP00-4AA0 is a robust and reliable 4-pole power contactor designed for demanding industrial applications, particularly for switching motor loads (AC-3) and other resistive or non-inductive loads (AC-1). As part of the Siemens SIRIUS family, this S2 size contactor offers exceptional performance, comprehensive protection features, and flexible integration into control systems.

Product Overview

The Siemens 3RT2336-1AP00-4AA0 is a high-performance power contactor with a current rating of 51 A for AC-3 applications and a power rating of 22 kW at 400 V. It features a 230 V AC, 50 Hz control coil and comes equipped with 1 normally open (NO) and 1 normally closed (NC) integrated auxiliary contacts for enhanced control and feedback. The convenient screw terminals ensure secure and reliable connections.

Functions & Application

The Siemens 3RT2336-1AP00-4AA0 power contactor excels in various industrial switching tasks:

• Motor Switching (AC-3): Ideal for controlling the ON/OFF operation of 3-phase AC motors, ensuring reliable starting and stopping.
• General Load Switching (AC-1): Suitable for switching weak or non-inductive loads, such as heating elements, lighting, and power distribution circuits.
• Grid Disconnection: Can be used for disconnecting loads or power generation plants from the electrical grid.
• Transfer Switching: Applicable in systems requiring switching between different power sources or loads.

Benefit

• Reliable Performance: Built to Siemens’ high-quality standards, ensuring long-term operational stability and safety.
• Versatile Application: Suitable for a wide range of industrial switching needs, from motor control to general load management.
• Enhanced Control: Integrated 1NO+1NC auxiliary contacts provide flexibility for interlocking, signaling, and control circuit integration.
• Robust Protection: Designed with considerations for short-circuit and overload protection for both main and auxiliary circuits, adhering to international standards.
• Easy Integration: Screw terminals simplify wiring and integration into existing control panels.
• Standards Compliant: Meets critical international standards including IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1 (for auxiliary switches), ensuring compliance and safety.
• Expandable: Compatible with a range of SIRIUS accessories, including surge suppressors, additional auxiliary switches, and overload relays for enhanced functionality and protection.

Technical Details & Protection Information

Standards:

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

Protection of Device Connections: All connections must be protected against overload and short circuits.

• Main Connections: Refer to the technical product data sheet for free-standing contactor protection. For combinations with overload relays or circuit breakers (motor feeders), consult the Digital Configuration Manual for Load Feeders or Configuration Manual for Load Feeders.
• Auxiliary Connections: Protection information available in the technical product data sheet.
• Control Supply Voltage Connections: Protection must align with relevant control panel standards and regulations. Suitable power supplies with current-limiting functions and appropriately dimensioned cables/protection devices are recommended, considering the contactor’s load characteristics (inrush current, switch-on power, holding power).
• Overvoltage Protection (Control Supply Voltage): Can be retrofitted with accessories like RC elements, varistors, or diode assemblies (ordered separately as surge suppressors) to damp opening surges in the coil. Note: Damping increases contactor break times and delays.

Connection Methods:

• Main Circuit: Screw terminals with box terminal; direct connection with cable lugs possible by removing the box terminal.
• Auxiliary and Control Circuit: Screw terminals.

Electromagnetic Compatibility (EMC):

• Fulfills requirements for environment category A.
• Note: When used with frequency converters, observe configuration notes in the Equipment Manual.

Contact Reliability of Auxiliary Contacts:

• High contact reliability for switching voltages $\le$ 110 V and currents $\le$ 100 mA.
• Especially suitable for solid-state circuits with currents $\ge$ 1 mA at voltages $\ge$ 17 V.

Motor Protection:

• For overload protection, compatible with SIRIUS 3RU2 thermal overload relays or 3RB3 electronic overload relays mounted directly onto the 3RT23 contactors.

Operating Mechanism Types:

• This model features a conventional AC operating mechanism. Versions with DC or wide-range solid-state operating mechanisms are also available within the 3RT23 series.

Maintenance & Spares:

• Solenoid coil replacement is possible for the 3RT233 contactors.
• Only the contacts for 3RT233 contactors can be replaced.

Auxiliary Contact Configuration:

• The 3RT2336-1AP00-4AA0 comes with two integrated auxiliary contacts (1 NO + 1 NC).
• Basic units can be expanded with additional auxiliary switches, adhering to permissible configurations.

Accessories & Spare Parts

A wide range of accessories and spare parts are available for SIRIUS 3RT2 contactors, including:

• Surge suppressors
• Additional auxiliary switches (instantaneous and leading/lagging)
• Overload relays (3RU2 thermal, 3RB3 electronic)
• Connecting elements and busbars
• Solenoid coils (for replacement)

For a complete list and ordering data, please refer to the Siemens SIRIUS accessories catalog or visit Turll.