Siemens SIRIUS 3RT2316-1BB40 Contactor 4-Pole, AC-1, 18A, 24V DC, S00 Screw Terminal Original Brand New

Overview

The Siemens SIRIUS 3RT2316-1BB40 is a high-performance 4-pole contactor designed for reliable switching of weak or non-inductive loads (AC-1 applications). With an 18 A rating at 400 V / 40 °C and a 24 V DC coil, this Size S00 contactor offers robust performance in industrial and commercial settings. Its compact design, featuring convenient screw terminals, makes it an ideal choice for a variety of power and control applications, including disconnecting loads, power generation plant integration, and transfer switching.

Key Features & Benefit

• Robust 4-Pole Switching: Engineered for reliable control of non-inductive or weakly inductive loads (AC-1), providing flexibility for diverse applications.
• High Current Rating: Handles up to 18 A at 400 V / 40 °C, suitable for demanding power switching tasks.
• Efficient 24 V DC Coil: Ensures reliable operation with a common industrial control voltage, minimizing power consumption.
• Compact S00 Size: Optimizes space within control cabinets, making installation easier.
• Secure Screw Terminals: Provides a robust and reliable connection for main, auxiliary, and control circuits.
• Integrated Auxiliary Contact: The basic unit includes one integrated auxiliary contact, streamlining wiring and offering immediate feedback capabilities.
• Expandable Design: Can be expanded with additional auxiliary switches to meet complex control requirements (accessories sold separately).
• Compliance with Standards: Adheres to critical international standards including IEC 60947-1, IEC 60947-4-1, and IEC 60947-5-1, ensuring safety and performance.
• Versatile Application: Ideal for disconnecting loads, managing power generation plants, and transfer switching operations.

Function and Protection

• Main Circuit Protection: Requires external short-circuit and overload protection. Refer to the technical product data sheet or digital configuration manuals for detailed guidance on free-standing contactors or combinations with overload relays/circuit breakers.
• Auxiliary Circuit Protection: Auxiliary contacts require suitable short-circuit and overload protection, detailed in the technical product data sheet.
• Control Supply Voltage Protection: Consider relevant standards for control panel configuration, suitable power supply selection (e.g., with current-limiting function), and appropriate protection devices. Account for short-time inrush current peaks and holding power.
• Overvoltage Protection: The 3RT23 contactors can be retrofitted with surge suppressors (RC elements, varistors, diodes, or diode assemblies) to dampen opening surges in the coil (ordered separately).
• Contact Reliability: Auxiliary contacts of 3RT contactors are designed for high contact reliability, especially suitable for solid-state circuits with currents $\ge 1\text{ mA}$ at voltages of $\ge 17\text{ V}$.
• Motor Protection: For overload protection, compatible 3RU2 thermal overload relays or 3RB3 electronic overload relays can be mounted.
• Coil Replacement: The solenoid coil can be replaced on 3RT231 contactors.

Connection Methods:

• Main Circuit (3RT231): Screw terminals.
• Auxiliary and Control Circuit: Screw terminals.

Electromagnetic Compatibility (EMC): The contactors meet the requirements for environment category A. When used with frequency converters, specific configuration notes in the Equipment Manual must be observed.

Application

The Siemens SIRIUS 3RT2316-1BB40 contactor is ideally suited for:

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

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