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Siemens 3RT2 Contactor, 24V dc Coil, 3-Pole 16 A, 7.5 kW Motor Control Device 3RT2018-2BB42
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Function | Motor Control |
| Length | 70mm |
| Model | 3RT2018-2BB42 |
| Depth | 73mm |
| Width | 45mm |
| Mount Type | DIN Rail |
| Series | 3RT2 |
| Power Rating | 7.5kW |
| Maximum Operating Temperature | 60°C |
| Minimum Operating Temperature | -25°C |
| Terminal type | Spring Loaded |
| Number of Poles | 3 |
| Standards/Approvals | EAC |
| Contact Voltage | 400V ac |
| Coil Voltage | 24V dc |
| Normal State Configuration | 3 NO |
| Better World Claim | Low Carbon Manufacture |
| Contact Current | 16A |
| Number of Auxiliary Contacts | 1 |
| Auxiliary Contact Configuration | 1 NC |
| Operational Current Ie | 22A |
| Control Circuit Voltage Uc | 24V dc |
| Pole and Throw Configuration | 3 |
Key Features
- Operates with a 24V dc coil voltage for reliable switching.
- Three-pole design suitable for controlling three-phase motors.
- Supports contact voltage of up to 400V ac and current rating of 16A.
- Includes one normally closed auxiliary contact for additional control functions.
- Compact dimensions with DIN rail mounting for easy installation.
- Equipped with spring-loaded terminals ensuring secure and flexible wiring.
- Operates efficiently within a temperature range of -25°C to 60°C.
- Rated for motor control applications with 7.5 kW power capacity.
Product Description
Siemens 3RT2018-2BB42 is a robust 3RT2 series contactor designed for motor control applications, featuring a 24V dc coil and three poles rated for a contact current of 16 A and contact voltage of 400V ac, suitable for motors up to 7.5 kW. This compact device (70mm length, 45mm width, 73mm depth) supports industrial automation needs with reliable switching performance.
The contactor’s three normally open (NO) main contacts and one normally closed (NC) auxiliary contact provide versatile control options in electrical circuits. Its spring-loaded terminal type supports secure connections accommodating solid and stranded conductors between 0.5mm² and 4mm² cross-section.
Engineered for diverse industrial environments, the contactor operates efficiently over a wide temperature range from -25°C to 60°C and can be easily mounted on DIN rails to streamline electrical panel assembly. The device complies with EAC approvals and exemplifies a low-carbon manufacture, supporting sustainability goals.
This contactor is widely applied in motor control circuits, HVAC systems, conveyor controls, machine tools, and factory sensing and control tasks where dependable switching and balanced load management are required.
Operates reliably with 24V dc coil voltage for precise control. Supports three-pole connections for three-phase electrical systems. Rated contact current of 16A and contact voltage of 400V ac. One normally closed auxiliary contact enhances circuit flexibility.
Spring-loaded terminals enable secure and easy wiring. Suitable for DIN rail mounting allowing quick installation. Wide operating temperature range from -25°C to 60°C ensures versatility. Compact size and low carbon manufacturing reduce footprint and environmental impact.
This product is manufactured in Germany, assuring high quality and reliability for industrial automation and motor control tasks. Find more Siemens automation and control products on EnvMart to meet diverse industrial requirements.
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Frequently Asked Questions
This model has a power rating of 7.5 kW, suitable for motor control applications.
The Siemens 3RT2018-2BB42 operates with a coil voltage of 24V dc.
It supports a maximum contact voltage of 400V ac.
This contactor is rated for a contact current of 16A.
The model features a three-pole design, suitable for controlling three-phase motors.
It operates efficiently within a temperature range of -25°C to 60°C.
It is equipped with spring-loaded terminals, allowing for secure and flexible wiring.
Yes, it includes one normally closed auxiliary contact for additional control functions.
The contactor has dimensions of 70mm in length, 45mm in width, and 73mm in depth.
This unit is designed for DIN rail mounting, facilitating easy installation.
It complies with EAC approvals, ensuring adherence to relevant standards.
This contactor is manufactured in Germany, assuring quality and reliability.
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