Siemens 3RT2016-1BB42 Power Contactor 9A 3-Pole 24V DC 1NC

The Siemens 3RT2016-1BB42 is a robust 3-pole power contactor engineered for high-performance industrial switching. Designed for reliability in demanding electrical environments, this S00 size component provides a 9A current rating and operates on a 24V DC control voltage. It is equipped with one normally closed (1NC) auxiliary contact, making it an essential element for modern automation systems and control cabinet configurations.

Advantages

This power contactor stands out due to its compact S00 design, which allows for efficient space utilization within control panels. Its high-quality construction ensures long-term durability and consistent performance under frequent switching cycles. The integration of a 24V DC coil provides energy-efficient operation, while the IP20 protection rating offers a standard level of safety against accidental contact. The unit is built to meet rigorous industrial standards, ensuring precision and reliability in various electrical control applications.

Suitable for

• Industrial automation systems
• Motor control and protection circuits
• Control cabinet installations
• Switching resistive and inductive loads

When it may not be suitable

This contactor is not intended for use in environments with high levels of moisture, dust, or corrosive gases, as it carries an IP20 rating. It is also not suitable for applications requiring higher current ratings than the specified 9A limit or for AC control voltage systems.

Key specifications

• Number of poles: 3
• Rated operational current: 9A
• Control supply voltage: 24V DC
• Auxiliary contacts: 1NC
• Size: S00
• Protection class: IP20

How to use

The contactor should be mounted on a standard DIN rail or via screw mounting within a protected control cabinet. Ensure that the control voltage matches the 24V DC specification before connecting the coil terminals. The main power lines should be connected to the primary terminals, and the auxiliary contact can be integrated into the control logic as required. Always ensure that the power supply is disconnected during installation and maintenance to prevent electrical hazards.

What to consider before purchase

• Verify that the 24V DC control voltage is compatible with your existing control system.
• Ensure the 9A current rating is sufficient for the intended load.
• Confirm that the S00 size fits within your available cabinet space.
• Check that the 1NC auxiliary contact configuration meets your circuit requirements.

Usage recommendations: It is recommended to perform periodic inspections of the terminal connections to ensure they remain tight and free from oxidation. Always follow the manufacturer's wiring diagrams and local electrical safety regulations during installation.