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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1024-3BB40 |
| Alternative Part Number | 3RT10243BB40 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Terminal Type | Spring-type terminal |
| Size | S0 |
| Pollution Degree | 3 |
| Protection Class | IP20 |
| Installation Altitude | Up to 2,000 metres above sea level |
| Ambient Operating Temperature | -25 to +60 degrees Celsius |
| Mechanical Operating Cycles | Typically 10,000,000 for contactor, 5,000,000 with electronics-compatible auxiliary switch block |
| Main Circuit Contacts | 0 NC (Normally Closed), 3 NO (Normally Open) |
| Operating Current | AC-1 at 400 V: 40 A, AC-3 at 400 V: 12 A, AC-4 at 400 V: 12.5 A |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Width | 45 mm |
| Height | 85 mm |
| Depth | 100 mm |
| Required Spacing | 6 mm to earthed parts at the side |
| Electrical Connection | Screw-type terminals for main circuit, Cage Clamp terminals for auxiliary/control circuit |
| Conductor Cross-section | Main contacts: solid/stranded up to 2x 10 mm², Auxiliary contacts: solid/stranded up to 2x 2.5 mm² |
The Siemens 3RT1024-3BB40 is a robust power contactor designed to meet the demands of industrial applications. Engineered for reliability, this contactor is part of the SIRIUS product family, renowned for its high-quality standards and innovative engineering. With a size S0 footprint, it is compact enough for efficient use of space within control cabinets, yet powerful enough to handle AC-3 loads up to 5.5 kW at 400 V.
This model features spring-type terminals, which provide a secure and maintenance-free electrical connection, reducing installation time and ensuring long-term stability in connections. The contactor is equipped with three normally open (NO) main contacts, ensuring efficient operation in a variety of power switching applications.
Rated for an impressive 10 million mechanical operating cycles, the 3RT1024-3BB40 is built to last, even in environments with high switching frequencies. It operates with a control supply voltage of 24 V DC and has an operating range factor of 0.8 to 1.1 times the rated value of the magnet coil, which ensures reliable operation even under fluctuating control voltages.
The device is designed for vertical mounting and can be easily installed on a standard 35 mm DIN rail, allowing for side-by-side mounting without the need for additional spacing. With an ambient operating temperature range of -25 to +60 degrees Celsius and an installation altitude of up to 2000 meters above sea level, it is suitable for a wide range of environmental conditions.
The 3RT1024-3BB40 is a testament to Siemens' commitment to quality, offering a dependable solution for controlling motors and loads in industrial settings. Whether used in manufacturing, process control, or other demanding applications, this power contactor is an excellent choice for professionals seeking performance and durability.
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Frequently Asked Questions
What type of terminal does this power contactor have?
The power contactor is equipped with spring-type terminals for secure and reliable connections.
Can this contactor be mounted on a DIN rail?
Yes, it can be mounted on a 35 mm standard mounting rail according to DIN EN 50022.
What is the size of this contactor?
This contactor is of size S0, which is a compact size suitable for various applications.
What is the IP protection class of the contactor?
The contactor has an IP20 protection class rating on the front, indicating protection against solid objects larger than 12mm but not against water.
What is the maximum operating altitude for this contactor?
The maximum operating altitude for the contactor is 2,000 meters above sea level.
What is the ambient temperature range for operating this contactor?
The contactor can operate within an ambient temperature range of -25 to +60 degrees Celsius.
How many mechanical operating cycles can this contactor withstand?
The contactor is designed for typically 10,000,000 mechanical operating cycles.
What is the rated operating current for this contactor at AC-3/400 V?
At AC-3/400 V, the rated operating current for the contactor is 12 A.
What is the control circuit voltage type for this contactor?
The control circuit voltage type for this contactor is DC.
What are the dimensions of this contactor?
The dimensions of the contactor are 45 mm in width, 85 mm in height, and 100 mm in depth.
Part conditions explained
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